CN108872752A - A kind of power distribution automation device detection system and its method - Google Patents

Abstract

The invention discloses a power distribution automation equipment detection system and a method thereof. The system includes a power distribution terminal simulation background, a communication management module, a power management module and a power distribution automation terminal; the power distribution automation terminal is provided with an AC input port , DC flow input port, state quantity input port, control output port, power output port and clock input port; the detection method includes: appearance and structure inspection, interface inspection, main function test detection, wave recording function test detection, basic performance Test detection and filter performance test detection. The invention can ensure the complete function and reliable quality of the distribution automation terminal equipment, can ensure the sustainable and healthy development of the distribution network automation construction, and can standardize the detection and detection method of the distribution automation terminal equipment.

Description

A detection system and method for power distribution automation equipment

technical field

The invention relates to the field of distribution automation, in particular to a detection system and method for distribution automation equipment.

Background technique

Distribution automation terminal (referred to as distribution terminal) is a general term for various remote monitoring and control units installed in the distribution network, and completes functions such as data collection, control, and communication. Among them, the detection categories of distribution automation terminals can be classified into type inspection, factory inspection, sampling inspection and arrival inspection, etc. For example, the type inspection includes: a) when new products are finalized or when old products are transferred to the factory; b) once every two years for equipment produced in large quantities (more than 100 units per year); c) once every three years for equipment produced in small batches; d ) When there is a major improvement in design and process, which may affect product performance; e) When the contract stipulates that there is a type inspection requirement; f) When the country or the company's quality supervision agency proposes a type inspection requirement. For example, manufacturers of power distribution terminals need to carry out factory inspections before leaving the factory, and only after passing the inspection can they leave the factory. For example, during the acceptance of mass-produced or continuous-produced equipment, or according to the distribution automation system and the operating conditions of the distribution terminal, a sampling inspection of the distribution terminal can be arranged. The sampling detection rate shall not be less than 15%. For example, after the equipment arrives, a full inspection of the power distribution terminal is carried out before installation on site. In order to effectively control the quality of power distribution terminals and improve the detection efficiency of terminals in the full inspection mode, according to the requirements of this technical specification for the detection of power distribution automation equipment, various detection items are tested.

Distribution automation equipment includes distribution automation terminals (referred to as distribution terminals) and distribution line fault indicators. Distribution terminal is a general term for various remote monitoring and control units installed in the distribution network, and completes functions such as data collection, control, and communication. The inspection categories of power distribution terminals are divided into: type test, factory inspection, sampling inspection and arrival full inspection. Due to the large number of equipment and different manufacturers, there must be a set of standard inspection schemes and methods in the arrival full inspection mode.

Due to the large amount of testing equipment in the state of full equipment inspection, it is necessary to configure a dedicated testing system for testing. The testing methods of different equipment can be analyzed by collecting and investigating the products of various manufacturers. The distribution automation terminal equipment is an important part of the distribution automation system. In order to ensure that the distribution automation terminal equipment has complete functions and reliable quality, so as to ensure the continuous and healthy development of distribution network automation construction, this invention studies the The testing standardization and testing process of distribution automation equipment is a dynamic support technology after the equipment is put into operation, and is used to standardize the testing items and testing methods of distribution automation terminal equipment.

Contents of the invention

The purpose of the present invention is to provide a distribution automation equipment detection system and its method, which can ensure the distribution automation equipment detection accuracy and dynamic support technology in the detection process after the operation and commissioning of the distribution automation equipment in the full inspection mode. The electrical automation terminal equipment has complete functions and reliable quality, which can ensure the sustainable and healthy development of distribution network automation construction, and can standardize the detection and detection methods of distribution automation terminal equipment.

In order to achieve the above object, the present invention provides a detection system for power distribution automation equipment, the detection system includes: power distribution terminal simulation background, communication management module, power supply management module and power distribution automation terminal; the power distribution automation terminal is equipped with AC volume input port, DC volume input port, state volume input port, control output port, power output port and clock input port; wherein, the AC volume input port and the DC volume input port are respectively connected to the AC and DC standard table It is connected with the AC/DC signal source, the state quantity input port is connected with the state quantity simulator, the control output port is connected with the control actuator, the power supply output port is connected with the electronic load, and the clock input port is connected with the satellite clock connection; the communication management module is respectively connected to the communication port in the power distribution terminal simulation background and the power distribution automation terminal, and the power distribution terminal simulation background is also connected to the vertical encryption and the two-dimensional code scanning gun.

The present invention also provides a distribution automation equipment detection method based on the distribution automation equipment detection system described above. The detection method includes the following process:

S. Content detection in the appearance and structure inspection module;

T. The content detection in the interface inspection module. The detection content is classified according to the terminal type. The terminal type has three remotes for feeder terminals, two remotes for feeder terminals, standard type, two remotes for feeder terminals, three remotes for station terminals, and three remotes for station terminals. Two-remote standard type, station terminal two-remote action type and distribution transformer terminal;

P. Content detection in the main function test module. The detection content is classified according to the terminal type. The terminal type has all models, feeder terminal three-remote, feeder terminal two-remote standard type, feeder terminal two-remote action type, feeder terminal two-remote action type, station terminal three-remote, station terminal two-remote standard type, station terminal two-remote action type and distribution transformer terminal;

Q. Content detection in the wave recording function test module;

M. Content detection in the basic performance test module;

N. Content detection in the filter performance test module.

Preferably, the detection content in the step S includes having a unique ID number, a unified definition method for the hardware version number, a unified definition method for the software version number and a unified labor dimension code.

Preferably, said step T further comprises:

The detection content of the terminal type of the feeder terminal three remotes includes: collecting no less than 2 line voltage quantities and 1 zero-sequence voltage; collecting no less than 3 current quantities; collecting no less than 2 remote signal quantities, remote The voltage of the letter power supply is not lower than 24V; and the opening and closing control of not less than one circuit switch;

The detection content of the terminal type of the two-remote standard type of the feeder terminal includes: collecting no less than 2 line voltages and 1 zero-sequence voltage; collecting no less than 3 currents; and collecting no less than 2 remote signals The power supply voltage of the remote signal is not lower than 24V;

The detection content of the terminal type of the second remote action of the feeder terminal includes: collecting no less than 2 line voltage quantities and 1 zero-sequence voltage; collecting no less than 3 current quantities; collecting no less than 2 remote signal quantities , the remote signal power supply voltage is not lower than 24V; and the opening and closing control of not less than l-way switch;

The detection content of the terminal type of the three remote terminals of the station includes: collecting no less than 4 bus voltages and two zero-sequence voltages; collecting at least 3 current quantities for each circuit; Less than 20 remote signals, the remote signal power supply voltage is not lower than 24V; and no less than 4-way switch opening and closing control;

The detection content of the terminal type of the two-remote standard type of the station terminal includes: collecting no less than 4 bus voltages and two zero-sequence voltages; collecting at least 3 currents for each circuit; collecting no less than 2 direct currents; Collect not less than 12 remote signals, and the remote signal power supply voltage is not lower than 24V;

The detection content of the terminal type of the second remote action type of the station terminal includes: collecting no less than 1 bus voltage; collecting at least 3 current quantities; collecting no less than 2 remote signaling quantities, and the remote signaling power supply voltage is not lower than 24V; and switch opening and closing control;

The detection content of the terminal type of the distribution transformer terminal includes: collecting no less than 3 voltages; and collecting at least 3 currents.

Preferably, said step P further comprises:

The detection content of all types of terminal types includes: having short-circuit faults and being able to send fault events, fault events including fault remote signaling information and switch voltage and current values at the time of fault occurrence;

The detection content of the terminal type of the feeder terminal three remotes includes: the function of collecting switch analog and status quantities on the spot, the remote transmission and remote control functions of measurement data and status data; Transmission function; with line pressure identification function; with dual power input and automatic switching function;

The detection content of the terminal type of the two-remote standard type of the feeder terminal includes: the function of collecting switch analog and state quantities on the spot, the remote transmission and remote control functions of measurement data and state data; and the alarm of voltage over limit and load over limit Upload function; Possess line pressure identification function;

The detection content of the terminal type of the second remote action type of the feeder terminal includes: the function of collecting switch analog quantities and state quantities on the spot, the remote transmission and remote control functions of measurement data and state data; and the alarm of voltage limit and load limit It has the function of uploading; it has the function of line voltage identification; it has the function of single-phase ground fault detection, and it can be cut off directly when a fault occurs; and it has the function of short-circuit fault discrimination. When used with a circuit breaker, it has the function of direct fault removal, and can be equipped with an automatic reclosing function to support acceleration after reclosing;

The detection content of the terminal type of the second remote action type of the feeder terminal includes: the function of collecting switch analog quantities and state quantities on the spot, the remote transmission and remote control functions of measurement data and state data; and the alarm of voltage limit and load limit Upward transmission function; with line voltage identification function; and with incoming call delay closing function, self-adaptive delay closing and unilateral power failure delay input function;

The detection content of the terminal type of the three remote terminals of the station includes: the ability to collect switch analog and state quantities on the spot, and the remote transmission and remote control functions of measurement data and state data;

The detection content of the terminal type of the two-remote standard type of the station terminal includes: having the function of receiving and collecting unit or collecting telemetry and remote signaling information on the spot, having the function of remote information transmission; and having the function of sending alarms such as load exceeding the limit;

The detection content of the terminal type of the second remote action type of the station terminal includes: having the function of collecting switch analog and state quantities on the spot, having the function of remote transmission of measurement data and state data; having the function of single-phase ground fault detection, when a fault occurs Direct removal; it has the function of short-circuit fault discrimination. When used with load switches, it can be effectively isolated by combining the action logic of the substation outlet switch. When used with circuit breakers, it has the function of direct removal of faults and can be equipped with an automatic reclosing function. Support Accelerate after reclosing; have voltage limit and load limit alarm sending function; have line voltage identification function;

The detection content of the terminal type of the distribution transformer terminal includes: having measurement and calculation functions for distribution transformer voltage, current, zero-sequence voltage, zero-sequence current, active power, reactive power, power factor, frequency, etc.; and having 3 Calculation of ~13 harmonic components, analysis and calculation of three-phase unbalance.

Preferably, the detection content in the step Q includes: having a fault recording function and the format of the recording file following the corresponding format, using two files, CFG and DAT.

Preferably, the detection content of the state quantity test terminal type in the step M includes: control output and state input.

Preferably, the detection content in the step N includes: the basic error of the steady-state recording voltage and the relative error of the steady-state recording current.

Compared with the prior art, the beneficial effects of the present invention are as follows: it can ensure that the distribution automation terminal equipment has complete functions and reliable quality, can ensure the sustainable and healthy development of distribution network automation construction, and can standardize the detection and inspection of distribution automation terminal equipment. method. The present invention is faced with the arrival, full inspection, installation and commissioning, operation and maintenance of the power distribution terminal, and establishes a set of standardized full-life management software to manage the full life cycle of the terminal equipment.

Description of drawings

Fig. 1 is a schematic diagram of the distribution automation terminal detection system of the present invention.

Detailed ways

The present invention provides a detection system and method for power distribution automation equipment. In order to make the present invention more obvious and understandable, the present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

Figure 1 is a schematic diagram of a detection system for distribution automation equipment of the present invention. The detection system includes a power distribution terminal simulation background, a communication management module, a power management module and a power distribution automation terminal. The power distribution automation terminal is provided with an AC volume input port, a DC volume input port, a state volume input port, a control output port, a power output port and a clock input port. For example, the AC input port and the DC input port are respectively connected to an AC/DC standard meter and an AC/DC signal source, the state amount input port is connected to the state amount simulator, the control output port is connected to the control actuator, and the power output port Connect with the electronic load, and connect the clock input port with the satellite clock. The communication management module is respectively connected with the communication port in the power distribution terminal simulation background and the power distribution automation terminal, and the power distribution terminal simulation background is also connected with the vertical encryption and the QR code scanning gun.

The functions realized by the detection system of the present invention include power supply and power supply influence test, communication and communication protocol, function test and electrical performance test. Among them, the power supply and power supply impact tests include: power supply phase failure test, power supply voltage change impact test, backup power management test, supporting power supply load capacity test, and power consumption test. Among them, communication and communication protocol include: protocol consistency test and communication connection test. Functional tests include: data acquisition and processing function test, remote signaling function test, control function test, data transmission and storage function test, time synchronization and time keeping function test, safety protection test, maintenance and display function, fault detection and processing function, Historical data storage function, fault recording function, parameter retrieval and configuration function. Electrical performance tests include: AC input analog basic error test, AC analog input influence test, other tests of power frequency AC input, DC analog analog-to-digital conversion total error test, wave recording performance test.

According to the current distribution automation operation requirements, this invention proposes a standardized detection scheme and method for Shanghai distribution network automation equipment from the aspects of detection technology, detection method, and detection examples, combined with the detection conditions and detection tasks of the Electric Power Research Institute, which specifically includes the following modules:

(1) Appearance and structure inspection module: the inspection content of this module includes:

(1) Should have a unique ID number:

a. Testing requirements: Check whether the ID number meets the requirements of Document No. 6; among them, the requirements of Document No. 6 refer to the distribution network planning as the basis, in accordance with the principle of "overall planning and simultaneous construction" of distribution automation and distribution network racks, Adopt the model of "master station integration, terminal and communication differentiation", comprehensively promote the construction of distribution automation, focus on improving the application level of distribution automation, fully support the lean management and precise investment of distribution network, and continuously improve the reliability of power supply in distribution network , power supply quality and efficiency benefits.

b. Detection scheme: use the QR code scanner equipped with the test system to read the QR code of the power distribution terminal, and at the same time read the inherent parameters of the terminal through the 101 protocol or 104 protocol; the test system automatically analyzes the results and compares them, and then compares them with the The standard requires comparison, and it is correct if they all meet.

(2) The hardware version number should be defined in a unified way;

a. Testing requirements: Check whether the ID number meets the requirements of Document No. 6;

b. Detection scheme: use the QR code scanner equipped with the test system to read the QR code of the power distribution terminal, and at the same time read the inherent parameters of the terminal through the 101 protocol or 104 protocol; the test system automatically analyzes the results and compares them, and then compares them with the The standard requires comparison, and it is correct if they all meet.

(3) The software version number should adopt a unified definition method:

a. Testing requirements: Check whether the ID number meets the requirements of Document No. 6;

b. Detection scheme: use the QR code scanner equipped with the test system to read the QR code of the power distribution terminal, and at the same time read the inherent parameters of the terminal through the 101 protocol or 104 protocol; the test system automatically analyzes the results and compares them, and then compares them with the The standard requires comparison, and it is correct if they all meet.

(4) The industrial dimension code should be unified:

a. Testing requirements: Check whether the ID number meets the requirements of Document No. 6;

b. Detection scheme: Use a QR code scanner to read the QR code of the power distribution terminal, and the test system automatically analyzes the results.

(2) Interface inspection module: The detection content of this module is classified according to the terminal type, among which the terminal type has feeder terminal (FTU) three-remote, feeder terminal (FTU) two-remote standard type, feeder terminal (FTU) two-remote action , station terminal (DTU) three-remote, station terminal (DTU) two-remote standard type, station terminal (DTU) two-remote action type and distribution transformer terminal (TTU), as follows:

2.1. Feeder terminal (FTU) three remotes: The detection content of this terminal type is as follows:

(1) Collect not less than 2 line voltages and 1 zero sequence voltage:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: The power source of the test system inputs 2 line voltages and 1 zero-sequence voltage, and then receives the information sent from the terminal to check whether it is consistent with the input.

(2) Collect no less than 3 current quantities:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: The power source of the test system inputs 3 currents, and then receives the information sent from the terminal to detect whether it is consistent with the input.

(3) Collect no less than 2 remote signals, and the remote signal power supply voltage is not lower than 24V:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: test the state quantity input device of the test system to input 2 remote signals with a voltage of 24V, and check whether the information uploaded by the device is consistent with the input.

(4) Opening and closing control of not less than one circuit switch:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: test the analog circuit breaker outputting the opening and closing commands of the system to output 1-way remote control, and check whether the information uploaded by the device is consistent with the input.

2.2. Feeder terminal (FTU) two-remote standard type: the detection content of this terminal type is as follows:

(1) Collect not less than 2 line voltages and 1 zero sequence voltage:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: The power source of the test system inputs 2 line voltages and 1 zero-sequence voltage, and checks whether the information uploaded by the device is consistent with the input.

(2) Collect no less than 3 current quantities:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: test the power source of the system to input 3 currents, and check whether the information uploaded by the device is consistent with the input.

(3) Collect no less than 2 remote signals, and the remote signal power supply voltage is not lower than 24V:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: test the state quantity input device of the test system to input 2 remote signals with a voltage of 24V, and check whether the information uploaded by the device is consistent with the input.

2.3. Feeder terminal (FTU) two remote operability: the detection content of this terminal type is as follows:

(1) Collect not less than 2 line voltages and 1 zero sequence voltage:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: The power source of the test system inputs 2 line voltages and 1 zero-sequence voltage, and checks whether the information uploaded by the device is consistent with the input.

(2) Collect no less than 3 current quantities:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: test the power source of the system to input 3 currents, and check whether the information uploaded by the device is consistent with the input.

(3) Collect no less than 2 remote signals, and the remote signal power supply voltage is not lower than 24V:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: test the state quantity input device of the test system to input 2 remote signals with a voltage of 24V, and check whether the information uploaded by the device is consistent with the input.

(4) Opening and closing control of not less than one circuit switch:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: The simulated circuit breaker of the test system outputs 1 remote control, and checks whether the uploaded information of the device is consistent with the input.

2.4. Three remotes of station terminal (DTU): The detection content of this terminal type is as follows:

(1) Collect no less than 4 bus voltages and two zero-sequence voltages:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: test the power source of the system to input 4 line voltages and 2 zero-sequence voltages, and check whether the information uploaded by the equipment is consistent with the input.

(2) Collect at least 3 current quantities for each circuit:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: test the power source of the system to input 3 currents per circuit, and check whether the uploaded information of the device is consistent with the input.

(3) Collect no less than 2 channels of DC flow:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: test the output 2-way DC flow of the system, and check whether the uploaded information of the device is consistent with the input.

(4) Collect no less than 20 remote signals, and the remote signal power supply voltage is not lower than 24V:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: test the state quantity input device of the test system to input 20 remote signals with a voltage of 24V, and check whether the information uploaded by the device is consistent with the input.

(5) Not less than 4-way switch opening and closing control:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: The simulated circuit breaker of the test system outputs 4-way remote control, and checks whether the uploaded information of the device is consistent with the input.

2.5. Station terminal (DTU) two-remote standard type: the detection content of this terminal type is as follows:

(1) Collect no less than 4 bus voltages and two zero-sequence voltages:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: test the power source of the system to input 4 line voltages and 2 zero-sequence voltages, and check whether the information uploaded by the equipment is consistent with the input.

(2) Collect at least 3 current quantities for each circuit:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: test the power source of the system to input 3 currents per circuit, and check whether the uploaded information of the device is consistent with the input.

(3) Collect no less than 2 channels of DC flow:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: test the output 2-way DC flow of the system, and check whether the uploaded information of the device is consistent with the input.

(4) Collect no less than 12 remote signals, and the remote signal power supply voltage is not lower than 24V:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: test the state quantity input device of the test system to input 12 remote signals with a voltage of 24V, and check whether the information uploaded by the device is consistent with the input.

2.6. Station terminal (DTU) two remote action type, the detection content of this terminal type is as follows:

(1) Collect not less than one bus voltage:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: the power source of the test system inputs a line voltage, and checks whether the information uploaded by the device is consistent with the input.

(2) Collect at least 3 current quantities:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: test the power source of the system to input 3 currents, and check whether the information uploaded by the device is consistent with the input.

(3) Collect no less than 2 remote signals, and the remote signal power supply voltage is not lower than 24V:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: test the state quantity input device of the test system to input 2 remote signals with a voltage of 24V, and check whether the information uploaded by the device is consistent with the input.

(4) Opening and closing control of the switch:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: The simulated circuit breaker of the test system outputs 1 remote control, and checks whether the uploaded information of the device is consistent with the input.

2.7. Distribution transformer terminal (TTU): The detection content of this terminal type is as follows:

(1) Acquire no less than 3 voltages:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: test the power source of the system to input 3 voltages, and check whether the information uploaded by the device is consistent with the input.

(2) Collect at least 3 current quantities:

a. Testing requirements: check whether the equipment meets the requirements;

b. Detection scheme: test the power source of the system to input 3 currents, and check whether the information uploaded by the device is consistent with the input.

(3) Main function test module: The detection content of this module is classified according to the terminal type, among which the terminal type has all models, feeder terminal (FTU) three remotes, feeder terminal (FTU) two remote standard type, feeder terminal (FTU) Two-remote action type (supporting boundary switch), feeder terminal (FTU) two-remote action type (segment/big branch switch supporting), station terminal (DTU) three-remote, station terminal (DTU) two-remote standard type, station Station terminal (DTU) two remote action type and distribution transformer terminal (TTU). details as follows:

2.1. All models: The detection content of this terminal type is as follows:

(1) It has short-circuit faults and can send fault events. Fault events include fault remote signaling information and switch voltage and current values at the time of fault occurrence:

a. Detection requirements: support various types of short-circuit faults, and can send fault events; support automatic delivery of fixed values; test 3 times, all correct.

b. Detection scheme: (i) short-circuit fault discrimination function, the test system uses the state sequence output function to output the fault current, and read the fault information through the 101 protocol or 104 protocol to judge whether it is correct; (ii) the short-circuit fault is divided into overcurrent section, overcurrent There are three kinds of tests, the second section of flow and the third section of overcurrent, and the test methods are the same. The test system can receive the fault event COS and event sequence record SOE returned by the terminal, and can receive the fault message at the same time. The fault message should contain the voltage and current value at the time of the fault, and it is in compliance if it is received correctly.

2.2. Feeder terminal (FTU) three remotes: The detection content of this terminal type is as follows:

(1) It has the function of collecting switch analog quantity and state quantity on the spot, and has the function of remote transmission and remote control of measurement data and state data:

a. Detection requirements: meet the functions of telemetry, remote signaling, and remote control; test 3 times, all are correct;

b. Detection scheme: (i) The test system outputs different current and voltage signals, the amplitude and angle of the current and voltage can be controlled, and the current, voltage, active power, reactive power, power factor and other telemetry of the terminal can be read through the 101 protocol or 104 protocol If the value is received correctly, it is correct; (ii) The state of the test system control state output module corresponds to the input state of the product under test, read the state quantity state of the product under test through the 101 protocol or 104 protocol, if it is consistent with the output of the test system If the status is consistent, it is judged that the status quantity acquisition function of the product under test is qualified and has the remote transmission function.

(2) Possess the function of sending alarms of voltage exceeding limit and load exceeding limit:

a. Testing requirements: limit value can be modified; test 3 times, all correct as compliance;

b. Detection scheme: (i) Voltage over-limit alarm function, test the system output voltage signal to make its amplitude exceed the voltage over-limit alarm value, and then check whether the voltage over-limit alarm remote signal status changes to 1 through 101 protocol or 104 protocol , if it changes to 1, it is qualified; (ii) the load over-limit alarm function, the test system outputs the current signal to make its amplitude exceed the over-limit alarm value, and then check the over-limit alarm remote signal status through the 101 protocol or 104 protocol Whether it becomes 1, if it becomes 1, it is qualified.

(3) Possess the line pressure identification function:

a. Detection requirements: the alarm information can be sent; the test is correct for 3 times and it is met;

b. Detection scheme: the test system outputs the rated voltage signal, and read whether the remote signal of the voltage state of the product under test is 1 through the 101 protocol or 104 protocol, and if it is 1, it is qualified.

(4) With dual power input and automatic switching function:

a. Testing requirements: need to meet this requirement; test 3 times, all are correct to meet;

b. Detection scheme: the test system first starts 1 power supply, and at the same time sends a remote signal change to the drive-in board, and should be able to receive the remote signal SOE; then the test system switches to another power supply, and at the same time sends a remote signal to the drive-in board change, it should be able to receive the remote signaling to change the SOE; during the handover process, it should not receive the terminal’s power-on remote signaling to be correct.

2.3. Two-remote standard type of feeder terminal (FTU): The detection content of this terminal type is as follows:

(1) It has the function of collecting switch analog quantity and state quantity on the spot, and has the function of remote transmission and remote control of measurement data and state data:

a. Detection requirements: meet the functions of telemetry, remote signaling, and remote control; test 3 times, all are correct;

b. Detection scheme: (i) The test system outputs different current and voltage signals, the amplitude and angle of the current and voltage can be controlled, and the current, voltage, active power, reactive power, power factor and other telemetry of the terminal can be read through the 101 protocol or 104 protocol If the value is received correctly, it is correct; (ii) The state of the test system control state output module corresponds to the input state of the product under test, read the state quantity state of the product under test through the 101 protocol or 104 protocol, if it is consistent with the output of the test system If the status is consistent, it is judged that the status quantity acquisition function of the product under test is qualified and has the remote transmission function.

(2) Possess the function of sending alarms of voltage exceeding limit and load exceeding limit:

a. Testing requirements: limit value can be modified; test 3 times, all correct as compliance;

b. Detection scheme: (i) Voltage over-limit alarm function, test the system output voltage signal to make its amplitude exceed the voltage over-limit alarm value, and then check whether the voltage over-limit alarm remote signal status changes to 1 through 101 protocol or 104 protocol , if it changes to 1, it is qualified; (ii) the load over-limit alarm function, the test system outputs the current signal to make its amplitude exceed the over-limit alarm value, and then check the over-limit alarm remote signal status through the 101 protocol or 104 protocol Whether it becomes 1, if it becomes 1, it is qualified.

(3) Possess the line pressure identification function:

a. Detection requirements: the alarm information can be sent; the test is correct for 3 times and it is met;

b. Detection scheme: the test system outputs the rated voltage signal, and read whether the remote signal of the voltage state of the product under test is 1 through the 101 protocol or 104 protocol, and if it is 1, it is qualified.

2.4. Feeder terminal (FTU) two remote action type (supporting boundary switch): the detection content of this terminal type is as follows:

(1) It has the function of collecting switch analog quantity and state quantity on the spot, and has the function of remote transmission and remote control of measurement data and state data:

a. Detection requirements: meet the functions of telemetry, remote signaling, and remote control; test 3 times, all are correct;

b. Detection scheme: (i) The test system outputs different current and voltage signals, the amplitude and angle of the current and voltage can be controlled, and the current, voltage, active power, reactive power, power factor and other telemetry of the terminal can be read through the 101 protocol or 104 protocol If the value is received correctly, it is correct; (ii) The state of the test system control state output module corresponds to the input state of the product under test, read the state quantity state of the product under test through the 101 protocol or 104 protocol, if it is consistent with the output of the test system If the status is consistent, it is judged that the status quantity acquisition function of the product under test is qualified and has the remote transmission function.

(2) Possess the function of sending alarms of voltage exceeding limit and load exceeding limit:

a. Testing requirements: limit value can be modified; test 3 times, all correct as compliance;

b. Detection scheme: (i) Voltage over-limit alarm function, test the system output voltage signal to make its amplitude exceed the voltage over-limit alarm value, and then check whether the voltage over-limit alarm remote signal status changes to 1 through 101 protocol or 104 protocol , if it changes to 1, it is qualified; (ii) the load over-limit alarm function, the test system outputs the current signal to make its amplitude exceed the over-limit alarm value, and then check the over-limit alarm remote signal status through the 101 protocol or 104 protocol Whether it becomes 1, if it becomes 1, it is qualified.

(3) Possess the line pressure identification function:

a. Detection requirements: the alarm information can be sent; the test is correct for 3 times and it is met;

b. Detection scheme: the test system outputs the rated voltage signal, and read whether the remote signal of the voltage state of the product under test is 1 through the 101 protocol or 104 protocol, and if it is 1, it is qualified.

(4) It has a single-phase ground fault detection function, and it can be cut off directly when a fault occurs:

a. Testing requirements: Prepare at least 3 kinds of single-phase grounding waveforms and test them separately.

b. Detection scheme: (i) The test system uses the waveform inversion output function to output the pre-prepared COMTRADE (power system transient data exchange) waveform file with single-phase grounding characteristics. After the output is completed, it passes the 101 protocol or 104 protocol Read the total accident SOE (sequence of events record) of the product under test, and at the same time read the opening state of the test system corresponding to the trip outlet of the product under test. If there is both a total accident SOE and a trip exit signal, it is qualified; (ii) Ground fault test, according to grounding resistance, grounding angle, grounding phase, different grounding methods, etc., prepare a variety of ground fault waveforms in advance, and then test the output of different grounding waveforms in order to see whether the product under test operates correctly; (iii) Ground fault test, which is divided into two types of tests: should act and should not act. The above (i) is the test that should act. If it is a test that should not operate, after the test system outputs the waveform file, if the 101 protocol or 104 protocol receives the total SOE of the product under test or detects the trip exit signal, it is unqualified, and neither is qualified.

(5) It has a short-circuit fault discrimination function, and when used with a load switch, it can be combined with the action logic of the substation outlet switch to achieve effective isolation of faults. When used with a circuit breaker, it has the function of direct fault removal, and can be equipped with an automatic reclosing function to support acceleration after reclosing:

a. Testing requirements: test 3 short-circuit conditions, reclose the test 3 times, and accelerate the test 3 times after reclosing, all of which are correct as compliance;

b. Detection scheme: (i) short-circuit fault discrimination function, the test system uses the state sequence output function to output the fault current, and reads the fault information through the 101 protocol or 104 protocol to judge whether it is correct. (ii) The short-circuit fault is divided into three tests: the first stage of overcurrent, the second stage of overcurrent, and the third stage of overcurrent, and the test methods are the same. (iii) Cooperate with the circuit breaker-type product under test, when the test system outputs the state sequence, it also detects whether the trip outlet of the product under test operates, and if there is a trip outlet signal, it is correct. (Ⅳ) For the tested product with load switch, the state sequence output by the test system is different from that of the circuit breaker type, and the current and voltage disappear at the same time after the fault current lasts for a long time. The test system detects the tripping exit signal of the product under test at the same time when outputting the state sequence. If the tripping exit signal is detected after the sequence outputs the no-pressure and no-current state, it is correct. (Ⅴ) Reclosing function. The test system uses the state sequence function to output the specified sequence. This sequence contains the function of simulating a circuit breaker. When outputting, the test system simultaneously detects the tripping exit and closing exit of the product under test. If the sequence output has no pressure and no current and then detects the closing exit signal, it is correct.

2.5. Feeder terminal (FTU) two remote action type (segment/big branch switch matching): the detection content of this terminal type is as follows:

(1) It has the function of collecting switch analog quantity and state quantity on the spot, and has the function of remote transmission and remote control of measurement data and state data:

a. Detection requirements: meet the functions of telemetry, remote signaling, and remote control; test 3 times, all are correct;

b. Detection scheme: (i) The test system outputs different current and voltage signals, the amplitude and angle of the current and voltage can be controlled, and the current, voltage, active power, reactive power, power factor and other telemetry of the terminal can be read through the 101 protocol or 104 protocol value, received correctly is correct. (ii) The state of the test system control state output module corresponds to the input state of the product under test, read the state quantity state of the product under test through the 101 protocol or 104 protocol, and judge the state of the product under test if it matches the output state of the test system The state quantity acquisition function is qualified and has the remote transmission function.

(2) Possess the function of sending alarms of voltage exceeding limit and load exceeding limit:

a. Testing requirements: limit value can be modified; test 3 times, all correct as compliance;

b. Detection scheme: (i) Voltage over-limit alarm function, test the system output voltage signal to make its amplitude exceed the voltage over-limit alarm value, and then check whether the voltage over-limit alarm remote signal status changes to 1 through 101 protocol or 104 protocol , if it becomes 1, it is qualified. (ii) Load over-limit alarm function, test the system output current signal to make its amplitude exceed the over-limit alarm value, and then check whether the over-limit alarm remote signal status becomes 1 through the 101 protocol or 104 protocol, and if it becomes 1 is qualified.

(3) Possess the line pressure identification function:

a. Detection requirements: the alarm information can be sent; the test is correct for 3 times and it is met;

b. Detection scheme: the test system outputs the rated voltage signal, and read whether the remote signal of the voltage state of the product under test is 1 through the 101 protocol or 104 protocol, and if it is 1, it is qualified.

(4) It has the function of delayed closing of incoming calls, and the function of delaying input of one-sided power failure and self-adaptive delayed closing:

a. Testing requirements: test 3 times, all correct as compliance;

b. Detection scheme: (i) Incoming call delay closing, the test system uses the state sequence output function, first simulates no power on both sides, and the switch is in a positional state, and then outputs the voltage on one side to detect whether the product under test is within the specified time There is a closing output signal. (ii) One-side power-off delay input, the test system uses the state sequence output function, first simulates the state of power on both sides, and the switch is in the position, and then the voltage on one side disappears, and detects whether the product under test is on and off within the specified time Gate output signal.

2.6. Three remotes of station terminal (DTU): The detection content of this terminal type is as follows:

(1) It has the function of collecting switch analog quantity and state quantity on the spot, and has the function of remote transmission and remote control of measurement data and state data:

a. Detection requirements: meet the functions of telemetry, remote signaling, and remote control; test 3 times, all are correct.

b. Detection scheme: (i) The test system outputs different current and voltage signals, the amplitude and angle of the current and voltage can be controlled, and the current, voltage, active power, reactive power, power factor and other telemetry of the terminal can be read through the 101 protocol or 104 protocol value, received correctly is correct. (ii) The state of the test system control state output module corresponds to the input state of the product under test, read the state quantity state of the product under test through the 101 protocol or 104 protocol, and judge the state of the product under test if it matches the output state of the test system The state quantity acquisition function is qualified and has the remote transmission function.

2.7. Station terminal (DTU) two-remote standard type: the detection content of this terminal type is as follows:

(1) It has the functions of receiving and collecting units or collecting telemetry and remote signaling information on the spot, and has the function of remote information transmission:

a. Detection requirements: meet the functions of telemetry, remote signaling, and remote control; test 3 times, all are correct;

b. Detection scheme: (i) The test system outputs different current and voltage signals, the amplitude and angle of the current and voltage can be controlled, and the current, voltage, active power, reactive power, power factor and other telemetry of the terminal can be read through the 101 protocol or 104 protocol value, received correctly is correct. (ii) The state of the test system control state output module corresponds to the input state of the product under test, read the state quantity state of the product under test through the 101 protocol or 104 protocol, and judge the state of the product under test if it matches the output state of the test system The state quantity acquisition function is qualified and has the remote transmission function.

(2) It has the function of sending alarms such as load exceeding the limit:

a. Testing requirements: limit value can be modified; test 3 times, all correct as compliance;

b. Detection scheme: Load over-limit alarm function, test the system output current signal to make its amplitude exceed the over-limit alarm value, and then check whether the over-limit alarm remote signal status becomes 1 through the 101 protocol or 104 protocol, if it changes 1 is qualified.

2.8. Station terminal (DTU) two remote action type: the detection content of this terminal type is as follows:

(1) It has the function of collecting switch analog and state quantities on the spot, and has the function of remote transmission of measurement data and state data:

a. Detection requirements: meet the functions of telemetry, remote signaling, and remote control; test 3 times, all are correct;

b. Detection scheme: the test system outputs different current and voltage signals, the current and voltage amplitude and angle can be controlled, and the remote measurement values such as current, voltage, active power, reactive power, power factor, etc. of the terminal are read through the 101 protocol or 104 protocol, and are correct Received as correct;

(2) Possess single-phase ground fault detection function, cut off directly when a fault occurs:

a. Testing requirements: Prepare at least 3 kinds of single-phase grounding waveforms and test them separately.

b. Detection scheme: (i) The test system outputs the pre-prepared COMTRADE waveform file with single-phase grounding characteristics through the waveform inversion output function, and reads the accident summary of the product under test through the 101 protocol or 104 protocol after the output is completed. SOE, read the input state of the test system corresponding to the trip outlet of the product under test at the same time, if there is both an accident total SOE and a trip outlet signal, it is qualified. (ii) Grounding fault test, according to grounding resistance, grounding angle, grounding phase, different grounding methods, etc., prepare a variety of ground fault waveforms in advance, and then test the output of different grounding waveforms in order to see whether the product under test operates correctly. (iii) The ground fault test is divided into two types of tests: should act and should not act. The above (1) is the test that should act. If it is a test that should not operate, after the test system outputs the waveform file, if the 101 protocol or 104 protocol receives the total SOE of the product under test or detects the trip exit signal, it is unqualified, and neither is qualified.

(3) It has a short-circuit fault discrimination function, and when used with a load switch, it can be combined with the action logic of the substation outlet switch to achieve effective isolation of faults. When used with a circuit breaker, it has the function of direct fault removal, and can be equipped with an automatic reclosing function to support acceleration after reclosing:

a. Testing requirements: test 3 short-circuit conditions, reclose the test 3 times, and accelerate the test 3 times after reclosing, all of which are correct as compliance;

b. Detection scheme: (i) short-circuit fault discrimination function, the test system uses the state sequence output function to output the fault current, and reads the fault information through the 101 protocol or 104 protocol to judge whether it is correct. (ii) The short-circuit fault is divided into three tests: the first stage of overcurrent, the second stage of overcurrent, and the third stage of overcurrent, and the test methods are the same. (iii) Cooperate with the circuit breaker-type product under test, when the test system outputs the state sequence, it also detects whether the trip outlet of the product under test operates, and if there is a trip outlet signal, it is correct. (Ⅳ) For the tested product with load switch, the state sequence output by the test system is different from that of the circuit breaker type, and the current and voltage disappear at the same time after the fault current lasts for a long time. The test system detects the tripping exit signal of the product under test at the same time when outputting the state sequence. If the tripping exit signal is detected after the sequence outputs the no-pressure and no-current state, it is correct. (Ⅴ) Reclosing function. The test system uses the state sequence function to output the specified sequence. This sequence contains the function of simulating a circuit breaker. When outputting, the test system simultaneously detects the tripping exit and closing exit of the product under test. If the sequence outputs no pressure and no current and then detects the closing exit signal, it is correct.

(4) Possess the function of sending alarms of voltage exceeding limit and load exceeding limit:

a. Testing requirements: limit value can be modified; test 3 times, all correct as compliance;

b. Detection scheme: (i) Voltage over-limit alarm function, test the system output voltage signal to make its amplitude exceed the voltage over-limit alarm value, and then check whether the voltage over-limit alarm remote signal status changes to 1 through 101 protocol or 104 protocol , if it becomes 1, it is qualified. (ii) Load over-limit alarm function, test the system output current signal to make its amplitude exceed the over-limit alarm value, and then check whether the over-limit alarm remote signal status becomes 1 through the 101 protocol or 104 protocol, and if it becomes 1 is qualified.

(5) Possess the line pressure identification function:

a. Detection requirements: the alarm information can be sent; the test is correct for 3 times and it is met;

b. Detection scheme: the test system outputs the rated voltage signal, and read whether the remote signal of the voltage state of the product under test is 1 through the 101 protocol or 104 protocol, and if it is 1, it is qualified.

2.9. Distribution transformer terminal (TTU): The detection content of this terminal type is as follows:

(1) It has measurement and calculation functions for distribution transformer voltage, current, zero-sequence voltage, zero-sequence current, active power, reactive power, power factor, frequency, etc.:

a. Detection requirements: meet the functions of telemetry and remote signaling; test 3 times, all are correct;

b. Detection scheme: (1) The test system outputs different current, voltage, zero-sequence current, zero-sequence voltage, and frequency signals, forms reactive power by controlling the current and voltage amplitude angles, and reads the terminal current, Telemetry values such as voltage, zero-sequence current, zero-sequence voltage, active power, reactive power, power factor, frequency, etc., are correct if received correctly.

(2) It has the functions of calculating the 3rd to 13th harmonic components and analyzing and calculating the degree of three-phase unbalance:

a. Testing requirements: test 3 times, all correct as compliance;

b. Detection scheme: (i) The test system outputs 3-13 harmonics, read the harmonic data of the terminal through the 101 protocol or the 104 protocol, and read the harmonic data of the standard table at the same time, compare the two, and the error is less than the given The fixed value is correct; (ii) The test system outputs 3-phase unbalanced current, read the three-phase current of the terminal and the unbalanced degree of TTU through the 101 protocol or 104 protocol, and read the three-phase current and unbalanced degree of the standard meter at the same time , the error is smaller than the given value and the value is correct.

(4) Wave recording function test module: the detection content of this module includes:

(1) With fault recording function:

a. Detection requirements: Send the Comtrade file that can trigger wave recording to verify the wave recording function of the terminal. The wave recording files read to the terminal are correct; test 3 sets of wave recording files.

b. Detection scheme: (i) Send the wave recording file that satisfies the wave recording, read the wave recording of the power distribution terminal through the 101 or 104 protocol, and read the wave recording file within the specified time is correct; (ii) The trigger condition of the wave recording function Including over-current fault, line voltage loss, zero-sequence voltage, zero-sequence current sudden change; (iii) The start-up condition parameters of the power distribution terminal can be set remotely.

(2) The wave recording file format follows the format defined in the Comtrade1999 standard, and only two files, CFG and DAT, are used:

a. Testing requirements: need to meet this requirement;

b. Detection scheme: (i) Display and judge Comtrade1999 format standard wave recording files, CFG and DAT (data files, binary format) two files. (ii) Automatically acquire and calculate waveform data, and automatically capture and save waveform images.

(5) Basic performance test module: The terminal types involved in this module include basic error test of AC power frequency power, test of influence quantity of AC power frequency power, fault current error test, short-term excessive input capability test of AC power frequency power and state quantity test , where, except for the detection content of the state quantity test, which includes the following content, the detection content of the other terminal types mentioned above is none; where the detection content of the state quantity test terminal type includes:

(1) Control output:

a. Testing requirements: open and close test for each output; 10 consecutive tests, all correct.

b. Detection scheme: The test system passes the 101 protocol or 104 protocol to generate a remote closing command, and at the same time detect whether the product under test has a closing exit signal. Repeat 10 times, and the closing signal is detected 10 times as qualified.

(2) Status input:

a. Testing requirements: open and close test for each input; 10 consecutive tests, all correct.

b. Detection scheme: the test system controls its own state output signal, applies voltage signals to the input 1, input 2, and input 3 of the product under test in turn, and reads the remote signal status of the product under test through the 101 protocol or 104 protocol value, status value are correct for qualified.

(6) Filtering performance test module: The detection content involved in the wave recording performance test terminal type in this module is as follows:

(1) Basic error of steady-state recording voltage:

a. Testing requirements: 0.05Un≤5.0%, 0.1Un≤2.5%, 0.5Un≤1.0%, 1.0Un≤0.5%, 1.5Un≤1.0%;

b. Detection scheme: (i) Steady-state wave recording: The test system outputs a specified state sequence, such as simulating the load current output for 1 second and then suddenly changing to the fault current for 200 milliseconds, and simultaneously adding voltage output. Then read the wave recording file of the product under test, and simultaneously record the wave file in the standard wave recorder. (ii) Accuracy analysis: The COMTRADE file analysis tool of the system analyzes the effective value of the steady-state voltage and the transient peak value of the voltage at the sudden change moment of the read-back wave recording file of the tested product. Then compare it with the same data in the waveform file in the system standard wave recorder, and if it meets the error requirements listed on the left, it is qualified. (iii) The wave recording performance test of the test system has a corresponding parameter interface, and the amplitude of the output voltage in steady state and transient state can be selected.

(2) Relative error of steady-state recording current:

a. Testing requirements: 0.1Un≤5.0%, 0.2Un≤2.5%, 0.5Un≤1.0%, 1.0Un≤0.5%, 5Un≤1.0%, 10Un≤2.5%;

b. Detection scheme: (i) Steady-state wave recording: The test system outputs a specified state sequence, such as simulating load current output for 1 second and then suddenly changing to fault current for 200 milliseconds. Then read the wave recording file of the product under test, and simultaneously record the wave file in the standard wave recorder. (ii) Accuracy analysis: The COMTRADE file analysis tool of the system analyzes the effective value of the steady-state current and the transient peak value of the current at the moment of a sudden change in the read-back wave recording file of the product under test. Then compare it with the same data in the waveform file in the system standard wave recorder, and if it meets the error requirements listed on the left, it is qualified. (iii) The wave recording performance test of the test system has a corresponding parameter interface, and the amplitude of the output current in steady state and transient state can be selected.

However, the remote signal anti-shake test terminal type, the time synchronization test terminal type, and the power supply test terminal type in the filter performance test module do not involve detection content.

For the distribution network operation support method, in order to complete the arrival full inspection and the operation of the distribution network automation system, it is necessary to strengthen the detection and operation management support from the automatic detection system and life-cycle management. Among them, the detection of the automatic detection system is as follows: In the face of the full inspection of the power distribution terminal, the workload is heavy, and it is impossible to rely on manual detection. It is necessary to establish an automatic detection system to complete the automatic detection of the entire arrival full inspection project. . The arrival full inspection of power distribution terminal equipment, because there are many types of terminals and many test items, manual inspection can no longer be completed, and an automated test platform system needs to be configured. The hardware index requirements of the automated test platform system are as follows:

Voltage analog output: output range: 0~450V, the maximum total power is not less than 300VA, and the verification support is metrological verification/calibration report. Current analog output: output range: 0~100A, maximum total power not less than 500VA, less than 300VA, verification support is metrological verification/calibration report. Voltage measurement accuracy: ≤±0.05%, among which, the typical measurement values in the metrology verification/calibration report should be evenly distributed within the range, and the number of measurement points should not be less than 9. Accuracy of current measurement: ≤±0.05%, among which, the typical measurement values in the metrology verification/calibration report should be evenly distributed within the range, and the number of measurement points should not be less than 9. Accuracy of electric energy measurement: ≤±0.1%, among which, the typical measurement values in the measurement verification/calibration report should be evenly distributed within the range, and the number of measurement points should not be less than 28 groups. Frequency accuracy: ≤±0.005Hz, wherein, the typical measurement values in the metrology verification/calibration report should be evenly distributed within the range, and the number of measurement points should not be less than 4. Voltage harmonic range: times: 2-21, amplitude: 0-100% of the fundamental amplitude; among them, the typical measurement values in the metrology verification/calibration report should be evenly distributed within the range, and the number of measurement points should not be less than 20. Current harmonic range: times: 2-21, amplitude: 0-100% of the fundamental amplitude; among them, the typical measurement values in the metrology verification/calibration report should be evenly distributed within the range, and the number of measurement points should not be less than 20. DC voltage analog output accuracy: ≤±0.2%, among which, the typical measurement values in the metrology verification/calibration report should be evenly distributed within the range, and the number of measurement points should not be less than 5. DC current analog output accuracy: ≤±0.2%, where the typical measurement values in the metrology verification/calibration report should be evenly distributed within the range, and the number of measurement points should not be less than 10. Angle measurement accuracy: ≤±1°, wherein, the typical measurement values in the metrology verification/calibration report should be evenly distributed within the range, and the number of measurement points should not be less than 6. Switching input and output unit: ≤200μs, wherein, the typical measurement values in the metrology verification/calibration report should be evenly distributed within the range, and the number of measurement points should not be less than 11. Clock pulse leading edge deviation (loss of satellite signal): ≤10μs/min, verification support is metrological verification/calibration report.

In addition, the functional requirements of the test platform are as follows:

(1) Appearance structure verification, the specific verification items involved are as follows:

(1) Installation method: The verification requirements are: the detection platform should be installed in a group screen type, and the appearance size should not be larger than: 1400*1000*2200 (width*depth*height, mm), and the group screen cabinet should be equipped with universal rollers. Easy to move, flexible layout.

(2) Grounding: The verification requirements are: the grounding of the detection platform is connected to the grounding grid of the building, and a separate grounding grid is not considered, and the protective grounding resistance is not greater than 4Ω.

(3) Quantity of status quantity/analog quantity interface: Verification requirements are: the voltage quantity of the detection system is ≥ 12 channels, the current quantity is ≥ 12 channels, the direct current quantity is ≥ 2 channels, the remote signal quantity is ≥ 30 channels, the remote control quantity is ≥ 30 channels, RS485 /232 communication interface ≥ 4 channels, network communication interface ≥ 4 channels; wave recording channel ≥ 8 channels; analog load interface ≥ 4 channels; adjustable power supply interface ≥ 3 channels; three-phase power supply interface ≥ 3 channels.

(2) Verification of management functions: The specific verification items involved are as follows:

(1) Inspection project management: The verification requirements are: the inspection platform should be able to support the establishment of inspection items, configure inspection item parameters, add and delete test items in the inspection project, set single-step/sequential execution of inspection items, and automatically save them. Test data and test results.

(2) Personnel authority management: The verification requirements are: the testing platform should be able to manage the testing personnel, personnel roles and the authority of each role in a unified manner. It mainly includes the addition and deletion of personnel, the modification of personnel name and login password, and the management of personnel roles.

(3) Inspection task management: The verification requirements are: the inspection platform should be able to create new test tasks and configure inspection tasks according to the inspection process, including: maintenance and upgrade of distribution terminal inspection cases, inspection personnel maintenance, and terminal inspection process management.

(4) Power distribution terminal case management: the verification requirements are: the detection platform can perform operations such as maintenance and distribution of detection item information, realize the creation and deletion of detection items, update the original item parameters and test upgrades included in the detection platform, and Loading and quick distribution of detection cases generated according to historical entries, automatic loading of cases according to the type of detection test and power distribution terminal can be selected, and user-defined maintenance configuration can be customized to support platform transplantation and online publishing. And it can be flexibly expanded and updated according to user needs.

(3) Platform function verification: The specific verification items involved are as follows:

(1) Power supply phase failure: The verification requirements are: the detection platform should be able to control and adjust the power supply phase failure of the power module, and collect the operating status of the power distribution terminal under the power supply phase failure state, and detect whether the power distribution terminal is in the power supply phase failure state. able to work.

(2) Backup power management: The verification requirements are: the detection platform should be able to control the power module to realize the power on and off of the device, collect the data of the backup power through the DC acquisition interface, and realize the function detection of the backup power of the power distribution terminal.

(3) Remote signaling function: the verification requirements are: the detection platform can control the state quantity simulation unit to apply remote signaling displacement to the power distribution terminal, and realize the reliability of the remote signaling of the power distribution terminal by obtaining the remote signaling and SOE data of the power distribution terminal , remote signaling anti-shake, SOE resolution, dual-position remote signaling and other function detection.

(4) Loading capacity of supporting power supply: The verification requirements are: the detection platform should be able to control the load to simulate the state of the supporting power supply of the power distribution terminal in the process of communication or switching action, and realize the load capacity detection of the supporting power supply of the power distribution terminal. It should meet the requirements of supporting communication module and switch electric operating mechanism to simulate load at the same time.

(5) Remote control function: The verification requirements are: the detection platform can simulate the master station to send remote control commands to the power distribution terminal and obtain the output data of the power distribution terminal through the input acquisition module, so as to realize the correctness of the remote control of the power distribution terminal, remote control output blocking, Fault protection function switching, remote control soft pressure plate, battery remote maintenance and other function testing.

(6) Data acquisition and processing: The verification requirements are: the detection platform should be able to automatically control the high-precision power source/state quantity simulation unit to apply the excitation amount to the power distribution terminal, and realize the control of power distribution by obtaining the collection and calculation data of the power distribution terminal. Detection of terminal analog quantity collection, temperature and humidity collection, alarm, telemetry dead zone range and other functions; (i) AC input analog quantity error, including: distribution terminal voltage, current basic error, active power, reactive power basic error, power Factor basic error, harmonic component basic error detection. (ii) The influence quantity of AC analog input, including: frequency change, change caused by harmonic content, change caused by power factor change to active power and reactive power, unbalanced current to three-phase active power and reactive power Detection of change caused by power, change caused by measured over-limit, output change caused by input voltage change, and output change caused by input current change. The detection platform automatically collects the output data of the platform and the real-time data of the power distribution terminal, and automatically generates a detection report.

(7) Parameter access and configuration: The verification requirements are: the detection platform can communicate and configure the operating parameters in the power distribution terminal, and access the inherent parameters, so as to realize the function detection of parameter access and configuration for the power distribution terminal.

(8) Fault detection and processing: the verification requirements are: the detection platform can control the high-precision power source/state quantity simulation unit to apply the excitation amount to the power distribution terminal, and realize the fault detection and processing of the power distribution terminal by obtaining the collected data of the power distribution terminal. Discriminant function testing. Including: voltage identification, voltage limit, load limit, zero drift, change threshold (dead zone), heavy overload alarm limit.

(9) Reading and verification of the ID number and QR code, hardware version number, and software version number of the power distribution terminal: the verification requirements are: able to automatically enter the QR code information of the power distribution terminal, and support the protocol test software to read inherent parameters , and automatically compare the two, and automatically generate a comparison result.

(10) Verification of fault recording detection capability: The verification requirements are: (i) The detection platform should be able to trigger the recording conditions to generate a recording file, read the recording of the distribution terminal, and realize the detection of the fault recording function of the distribution terminal. Support 64 sets of cyclic reading and storage of each power distribution terminal recording data; the triggering conditions of the wave recording function include overcurrent fault, line voltage loss, zero-sequence voltage, zero-sequence current mutation, etc., and the start-up condition parameters of the power distribution terminal can be set remotely . Display and judge Comtrade1999 standard wave recording files, CFG and DAT (data files, binary format) two files. (ii) The detection platform can carry out two kinds of waveform functions and performance tests, steady-state recording and transient-state recording, can invert Comtrade1999 format waveform files, and can automatically obtain and calculate waveform data, and automatically intercept waveform diagrams to generate test reports.

(11) Time synchronization and punctuality: verification requirements are: (i) The testing platform should be equipped with a high-precision satellite clock and provide SNTP time synchronization. (ii) The detection platform can simulate the master station and the standard clock to send time synchronization commands to the power distribution terminals and collect the SOE information of the power distribution terminals to realize the time synchronization and punctuality detection of the power distribution terminals. (iii) The detection platform can simulate the interference timing message and send it to the power distribution terminal under test. (ⅳ) Automatically calculate the leading or lagging error for time punctuality.

(12) Communication Protocol Verification: The verification requirements are: (i) The detection platform should be able to simulate the master station to provide a protocol interface. T 634.5104-2009 protocol implementation rules, to realize the verification of the distribution terminal communication protocol. (ii) The detection platform should be able to carry out physical layer, link layer, basic application functions, application service data unit of control direction system information, application service data unit of monitoring direction system information, application service data unit of control direction process information, monitoring Protocol verification of application service data unit of direction process information, event loop record, fixed-point record, extreme value record, remote operation record historical file reading, inherent parameters, and fault recording file reading.

(4) Platform performance verification: The specific verification items involved are as follows:

(1) Voltage analog output: verification requirements are: output range: 0-450V, maximum total power not less than 300VA.

(2) Current analog output: verification requirements are: output range: 0-100A, maximum total power not less than 500VA.

(3) Voltage and current measurement accuracy: verification requirements are: 0.5A～10A, ≤±0.05%; 0V～300V, ≤±0.05%.

(4) Voltage and current output stability: Verification requirements are: 0.5A～10A, ≤±0.02%; 40V～300V, ≤±0.02%.

(5) Outgoing response time: verification requirements: ≤200us.

(6) Synchronous detection ability: The verification requirements are: the detection platform supports the automatic and batch synchronous detection function of various types of power distribution terminals, and supports the detection of FTU, DTU, and TTU of different manufacturers and different rated parameters. The wiring is independent of each other. Synchronously detect the number of power distribution terminals ≥ 5 sets.

In addition, in the face of the arrival, full inspection, installation and commissioning, operation and maintenance of power distribution terminals, a set of standardized life-cycle management software is established to manage the life cycle of terminal equipment.

(1) Establish an equipment file label system: In addition to the format and content specified in Document No. 6, an equipment file label should be attached to each terminal. The label should contain the following information: equipment number, asset number, software version number (SV04 .001), protocol (104), IP address, installation location and commissioning date, etc. After scanning with a mobile phone, the content information is uploaded to the standardized management platform, and the device number is associated with the device in the file to facilitate terminal management.

(2) Establish the arrival inspection management of distribution network terminals: when the product arrives, an equipment ledger is established, and the inspection report after the arrival inspection is also included in the equipment file, which is conducive to the operation and maintenance management of the equipment.

(3) Establish installation and commissioning management of distribution network terminals: After the product is installed, the records of installation location, commissioning and online operation enter the life-cycle management software.

(4) Establish distribution network operation and maintenance management: During the operation of power distribution terminals, it is necessary to maintain the terminals frequently, and the content of equipment maintenance and the cause of failures are all entered into the life-cycle management software.

(5) Use big data to improve the reliability of power distribution equipment: through the life-cycle management of power distribution terminals, the data in the life cycle of power distribution terminals can be obtained, and by using big data analysis, frequent failures, frequently damaged components, Fault-prone manufacturers and other information are analyzed, and targeted solutions are put forward after analysis, so as to improve the operation reliability of power distribution terminals.

Although the content of the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as limiting the present invention. Various modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the above disclosure. Therefore, the protection scope of the present invention should be defined by the appended claims.

Claims (8)

1. a kind of power distribution automation device detection system, which is characterized in that the detection system includes：Distribution terminal simulation backstage, Communication management module, power management module and distribution power automation terminal；

The distribution power automation terminal is defeated equipped with of ac input port, DC quantity input port, quantity of state input port, control Exit port, output port of power source and to clock input port；

Wherein, the of ac input port and the DC quantity input port are believed with alternating current-direct current standard scale and alternating current-direct current respectively The connection of number source, the quantity of state input port connects with quantity of state simulator, the control output end mouthful with control actuator company It connects, the output port of power source is connect with electronic load, described to connect to clock input port with satellite clock；The telecommunication management Module is simulated the communication port in backstage and the distribution power automation terminal with the distribution terminal respectively and is attached, described to match Electric terminals simulation backstage is also connect with two-dimensional code scanning rifle with longitudinal encryption.

2. a kind of power distribution automation equipment detection method based on power distribution automation device detection system described in claim 1, It is characterized in that, this method includes following procedure：

S, the content detection in appearance and structure inspection module；

T, the content detection in interface check module, detection content are classified according to terminal type, and it is whole which is equipped with feeder line Hold three distant, the distant standard type of line feed terminals two, the distant action of line feed terminals two, stand institute's terminal three is distant, the distant standard type of institute's terminal two of standing, It stands the distant action type of institute's terminal two and distribution transformer terminals；

P, the content detection in major function tentative module, detection content are classified according to terminal type, which is equipped with complete Portion's model, line feed terminals three are distant, the distant standard type of line feed terminals two, the distant action type of line feed terminals two, the distant action type of line feed terminals two, Standing, institute's terminal three is distant, the distant standard type of institute's terminal two of standing, the stand distant action type of institute's terminal two and distribution transformer terminals；

Q, the content detection in recording function test module；

M, the content detection in basic performance tests module；

N, the content detection in filtering performance tentative module.

3. a kind of power distribution automation equipment detection method as claimed in claim 2, which is characterized in that

Detection content in the step S includes should have unique I D, hardware version numbers should use unified definition side Formula, software version number should should be used unified using unified definition mode and work dimension code.

4. a kind of power distribution automation equipment detection method as claimed in claim 2, which is characterized in that

The step T is further included：

The detection content of the distant terminal type of the line feed terminals three includes：Acquisition is no less than 2 line voltage amounts, 1 zero sequence electricity Pressure；Acquisition is no less than 3 magnitudes of current；Acquisition is no less than 2 remote signalling amounts, and remote signalling power supply voltage is not less than 24V；And no less than l The switching on and off of way switch controls；

The detection content of the terminal type of the distant standard type of the line feed terminals two includes：Acquisition is no less than 2 line voltage amounts, 1 Residual voltage；Acquisition is no less than 3 magnitudes of current；And acquisition is no less than 2 remote signalling amounts, remote signalling power supply voltage is not less than 24V；

The detection content of the terminal type of the distant action of the line feed terminals two includes：Acquisition is no less than 2 line voltage amounts, 1 Residual voltage；Acquisition is no less than 3 magnitudes of current；Acquisition is no less than 2 remote signalling amounts, and remote signalling power supply voltage is not less than 24V；And not Switching on and off less than l way switch controls；

The detection content of the distant terminal type of station institute's terminal three includes：Acquisition is no less than 4 busbar voltages and two zero sequences Voltage；Every circuit at least acquires 3 magnitudes of current；Acquisition is no less than 2 tunnel DC quantities；Acquisition is no less than 20 remote signalling amounts, remote signalling electricity Source voltage is not less than 24V；And the switch divide-shut brake control on no less than 4 tunnels；

The detection content of terminal type of the station distant standard type of institute's terminal two includes：Acquisition is no less than 4 busbar voltages and two A residual voltage；Every circuit at least acquires 3 magnitudes of current；Acquisition is no less than 2 tunnel DC quantities；Acquisition is no less than 12 remote signalling amounts, Remote signalling power supply voltage is not less than 24V；

The detection content of terminal type of the station distant action type of institute's terminal two includes：Acquisition is no less than 1 busbar voltage；At least Acquire 3 magnitudes of current；Acquisition is no less than 2 remote signalling amounts, and remote signalling power supply voltage is not less than 24V；And the switching on and off control of switch System；

The detection content of the terminal type of the distribution transformer terminals includes：Acquisition is no less than 3 voltages；And at least acquire 3 electricity Flow.

5. a kind of power distribution automation equipment detection method as claimed in claim 2, which is characterized in that

The step P is further included：

The detection content of terminal type of the whole model includes：Have a short trouble, and can on send event of failure, failure thing Part includes switching voltage, the current value that the moment occurs for failure remote signalling information and failure；

The detection content of the distant terminal type of the line feed terminals three includes：Have in-site collecting switch analog quantity and quantity of state Function has measurement data, status data teletransmission and distant place control function；Have voltage out-of-limit, send function in load Threshold Crossing Alert Energy；Having route has pressure identification function；Have double loop power supply input and automatic switching function；

The detection content of the terminal type of the distant standard type of the line feed terminals two includes：Have in-site collecting switch analog quantity and shape State amount function has measurement data, status data teletransmission and distant place control function；Has voltage out-of-limit, in load Threshold Crossing Alert Send function；Having route has pressure identification function；

The detection content of the terminal type of the distant action type of the line feed terminals two includes：Have in-site collecting switch analog quantity and shape State amount function has measurement data, status data teletransmission and distant place control function；Has voltage out-of-limit, in load Threshold Crossing Alert Send function；Having route has pressure identification function；Have phase-to-ground fault detection function, is directly cut off when breaking down：And Has short trouble discrimination function, action logic when cooperation on-load switch uses in conjunction with substation's outlet switch realizes failure It is effectively isolated.Cooperate breaker directly to cut off function in use, having failure, and an automatic reclosing function can be matched, props up Hold post reclosing acceleration；

The detection content of the terminal type of the distant action type of the line feed terminals two includes：Have in-site collecting switch analog quantity and shape State amount function has measurement data, status data teletransmission and distant place control function；Has voltage out-of-limit, in load Threshold Crossing Alert Send function；Having route has pressure identification function；And having incoming call time-delay closing function, adaptive delay combined floodgate closes unilateral power loss Delay investment function；

The detection content of the distant terminal type of station institute's terminal three includes：Has in-site collecting switch analog quantity and quantity of state function Can, have measurement data, status data teletransmission and distant place control function；

The detection content of terminal type of the station distant standard type of institute's terminal two includes：Have and receives acquisition unit or in-site collecting Telemetering, remote signalling informational function, have information remote transmitting function；And has and send function in the load alarm such as out-of-limit；

The detection content of terminal type of the station distant action type of institute's terminal two includes：Have in-site collecting switch analog quantity and shape State amount function has measurement data, status data transporting function；Have phase-to-ground fault detection function, it is straight when breaking down Connect excision；Has short trouble discrimination function, action logic when cooperation on-load switch uses in conjunction with substation's outlet switch is real Existing failure is effectively isolated, and cooperates breaker directly to cut off function in use, having failure, and can match an automatic reclosing Function supports post reclosing acceleration；Have voltage out-of-limit, send function in load Threshold Crossing Alert；Having route has pressure identification function； The detection content of the terminal type of the distribution transformer terminals includes：Have to distribution transformer voltage, electric current, residual voltage, zero sequence The measurements such as electric current, active power, reactive power, power factor, frequency and computing function；And have 3~13 order harmonic components It calculates, the analytical calculation function of tri-phase unbalance factor.

6. a kind of power distribution automation equipment detection method as claimed in claim 2, which is characterized in that

Detection content in the step Q includes：Have failure wave-recording function and recorded wave file format follow corresponding format, Using two files of CFG and DAT.

7. a kind of power distribution automation equipment detection method as claimed in claim 2, which is characterized in that

The detection content of quantity of state test terminal type in the step M includes：Control output and state input.

8. a kind of power distribution automation equipment detection method as claimed in claim 2, which is characterized in that

Detection content in the step N includes：Stable state recording voltage elementary error and stable state recording electric current relative error.