CN107064693B - Relay protection device outlet matrix test device and test method - Google Patents
Relay protection device outlet matrix test device and test method Download PDFInfo
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- CN107064693B CN107064693B CN201710379668.5A CN201710379668A CN107064693B CN 107064693 B CN107064693 B CN 107064693B CN 201710379668 A CN201710379668 A CN 201710379668A CN 107064693 B CN107064693 B CN 107064693B
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The invention discloses a relay protection device outlet matrix test device and a test method, wherein a first communication interface and a protection tripping outlet contact of a tested relay protection device are respectively connected with a first communication interface and a switching value switching-in contact of the relay protection device outlet matrix test device; the second Ethernet communication interface of the relay protection device outlet matrix test device is connected with the second Ethernet communication interface of the relay protection tester; the current analog output interface, the switching value switching point and the voltage analog output interface of the relay protection tester are respectively connected with the current analog input interface, the switching value switching point and the power analog input interface of the relay protection device to be tested; the method solves the problems that the manual testing method in the prior art has low testing efficiency, is greatly influenced by human factors and technical level, has insufficient contact points and complex wiring of the relay protection tester, and can greatly influence the accuracy and the testing efficiency of the testing result.
Description
Technical Field
The invention belongs to the intelligent substation relay protection device testing technology, and particularly relates to a relay protection device outlet matrix testing device and a testing method.
Background
The protection principle of different elements has the protection scope of cross repetition, for example, the protection scope of bus differential protection comprises all devices such as lines, main transformers and the like connected to a bus. When new equipment is checked and accepted and operation is carried out and old equipment is checked and checked annually, how to check the correctness of each protection logic is an important part of secondary professional work of relay protection.
The tripping outlet matrix check is an important link in the protection and definite inspection operation, and is one of main measures for ensuring that an outlet loop is correctly configured, a switch is not jumped by mistake when a system fails, and the normal power supply and the safe operation of a power system are ensured. However, for example, the main transformer protection, the generator-transformer group protection and the like have a plurality of outlets, the outlet time limit is complex, the power failure time is short, the protection and the inspection items are more, and the validity of the outlet matrix can not be comprehensively and effectively checked by a relay protection person in the actual inspection. The trip outlet matrix check is all the pressing plates which should be measured according to the fixed value single outlet matrix in the fixed check and should be capable of correct action.
In most of the current fixed inspection, the following problems exist:
1. the relay protection personnel mainly uses the traditional multimeter measuring method to finish the measuring work of the action condition of the outlet pressing plate, the measuring result of the method is not visual enough, only the condition of detecting whether the single outlet pressing plate acts or not can be realized, the specific action time can not be measured, and meanwhile, the sequence of the actions of each outlet is difficult to distinguish,
2. the protection outlet is measured perhaps through relay protection tester, but relay protection tester provides the limited entry contact quantity, can't measure the action condition and the action sequence of export matrix comprehensively, and this kind of method wiring is many and complicated.
The invention comprises the following steps:
the invention aims to solve the technical problems: the utility model provides a relay protection device export matrix test device and test method to solve the prior art and adopt the method of manual testing to have that test efficiency is low, receive the influence of human factor and technical level greatly, and relay protection tester contact is not enough and wiring is complicated etc. shortcoming, can influence the accuracy of test result and test efficiency scheduling problem to a great extent.
The technical scheme of the invention is as follows:
the utility model provides a relay protection device export matrix test device, it includes relay protection device and relay protection tester that is surveyed; the first communication interface and the protection tripping outlet contact of the relay protection device to be tested are respectively connected with the first communication interface and the switching value switching-in contact of the relay protection device outlet matrix test device; the second Ethernet communication interface of the relay protection device outlet matrix test device is connected with the second Ethernet communication interface of the relay protection tester; the current analog output interface, the switching value switching point and the voltage analog output interface of the relay protection tester are respectively connected with the current analog input interface, the switching value switching point and the power analog input interface of the relay protection device to be tested.
The first communication interface of the relay protection device outlet matrix test device is an Ethernet interface or a serial communication interface.
The relay protection device outlet matrix test device comprises a CPU, a control panel, an external interface, a first communication interface, a second Ethernet communication interface and a switching value switching point are respectively connected with the CPU, and a power module provides power for the whole relay protection device outlet matrix test device.
The external interface comprises an auxiliary test power output interface, a test result export interface and a printing interface.
The test method of the relay protection device outlet matrix test device comprises the following steps:
step 1, a relay protection device outlet matrix test device reads a fixed value list, control words and outlet matrix information in a tested relay protection device, and sends the read information to the relay protection device outlet matrix test device through a first communication interface of the tested relay protection device;
step 2, setting test items through a control panel or an upper computer of an outlet matrix test device of the relay protection device, and configuring test fixed values, control words and outlet matrixes corresponding to the test items;
step 3, connecting all protection tripping outlet contacts of the relay protection device to be tested to the switching value switching-in contact of the relay protection device outlet matrix test device; respectively connecting a voltage analog quantity output interface, a current analog quantity output interface and a switching value switching point of the relay protection tester to a voltage analog quantity input interface, a current analog quantity input interface and a switching value switching point of the relay protection device to be tested;
step 4, the relay protection device outlet matrix testing device transmits the test fixed value, the control word and the outlet matrix corresponding to the test item and the test content to the relay protection device to be tested through the first communication interface; the relay protection device outlet matrix test device automatically calculates a current analog quantity, a voltage analog quantity and an opening quantity required to be issued by a test and issues the current analog quantity, the voltage analog quantity and the opening quantity to the relay protection tester through a second Ethernet communication interface;
step 5, after the instruction is issued, automatically starting a test by the relay protection device outlet matrix test device, wherein the test set time is t1+t2 seconds, and after the time is stopped, automatically stopping the test by the relay protection device outlet matrix test device; t1 is the longest time constant value in the constant values of the protection device; t2 is time for preventing the protection device from not timely acting, and t1 and t2 are set to 0.1 or 0.2 seconds;
and 6, automatically judging a test result by the relay protection device outlet matrix test device according to the judgment logic, and sending the test result to a tester.
The judging logic in the step 6 includes: logic 1: the action conditions of switching value switching-on and switching-off points of the relay protection device outlet matrix test device are in one-to-one correspondence with the corresponding points of the set outlet matrix; logic 2: the action time t3 of the switching value opening and closing point returned by the relay protection device outlet matrix test device is set to be a protection action time setting value t4 corresponding to the set outlet matrix, and the error meets the following conditions: t3-t4< ε, where: epsilon is the time error.
The method for automatically judging the test result according to the judgment logic comprises the following steps: when both logic 1 and logic 2 reach logic conditions, judging that the test result is correct; the corresponding contact point number positions and the corresponding action time of the switching value switching-in contact point action of the relay protection device outlet matrix test device are sent to a tester; when one of the logic 1 or the logic 2 reaches the logic condition, or both the logic 1 and the logic 2 can not reach the logic condition, the test result is abnormal; and the corresponding contact point number positions of the switching value opening and closing contact point actions of the relay protection device outlet matrix test device and the contact point number and action time which do not correspond to the setting value of the relay protection device outlet matrix are sent to test staff.
And the test items are set according to the protection types and the protection contents.
The invention has the beneficial effects that:
according to the invention, an integrated relay protection device outlet matrix test device is added, a relay protection device to be tested and a relay protection tester are connected together, and communication is carried out between the relay protection device to be tested and the relay protection tester through an Ethernet; reducing wiring; presetting test items through a control panel or an upper computer of an outlet matrix test device of the relay protection device, and configuring test fixed values, control words and outlet matrixes corresponding to the test items; entering an automatic test, automatically returning a test result, and reducing manual intervention; the method solves the problems that the manual testing method in the prior art has low testing efficiency, is greatly influenced by human factors and technical level, has insufficient contact points and complex wiring of the relay protection tester, and can greatly influence the accuracy and the testing efficiency of the testing result.
Description of the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic structural diagram of an outlet matrix test device of the relay protection device in the present invention.
The specific embodiment is as follows:
the utility model provides a relay protection device export matrix test device, it includes relay protection device and relay protection tester that is surveyed; the first communication interface and the protection tripping outlet contact of the relay protection device to be tested are respectively connected with the first communication interface and the switching value switching-in contact of the relay protection device outlet matrix test device; the second Ethernet communication interface of the relay protection device outlet matrix test device is connected with the second Ethernet communication interface of the relay protection tester; the current analog output interface, the switching value switching point and the voltage analog output interface of the relay protection tester are respectively connected with the current analog input interface, the switching value switching point and the power analog input interface of the relay protection device to be tested.
The first communication interface of the relay protection device outlet matrix test device is an Ethernet interface or a serial communication interface.
The relay protection device outlet matrix test device comprises a CPU, a control panel, an external interface, a first communication interface, a second Ethernet communication interface and a switching value switching point are respectively connected with the CPU, and a power module provides power for the whole relay protection device outlet matrix test device.
The external interface comprises an auxiliary test power output interface, a test result export interface and a printing interface.
The first communication interface of the relay protection device outlet matrix test device is selected from an Ethernet communication interface or a serial communication interface and is used for reading information such as a fixed value, a control word, an outlet matrix and the like of the tested relay protection device by the relay protection device outlet matrix test device; and meanwhile, the test fixed value, the control word, the outlet matrix and the like of the relay protection device to be tested can be issued and modified.
The second Ethernet communication interface of the relay protection device outlet matrix test device: the device is used for transmitting the current value, the voltage value and the opening amount required to be issued by the test to the relay protection device outlet matrix test device;
control panel: the large-screen high-resolution graphic liquid crystal display is adopted, the operation process is set on the display, and the operation interface and the test result are displayed in a Chinese mode, so that the display is visual and clear. The human-computer interface is used for setting test values, test parameters, checking test processes in real time, checking test results and test analysis reports, and is used for deriving the test results.
And a power supply module: the power supply is used for providing a power supply of the relay protection device outlet matrix test device, and can output 5V and 24V to supply power to other plug-ins of the device;
external interface: the test device comprises an auxiliary test power output interface, a test result export interface and a printing interface.
Auxiliary test power output interface: the device is provided with a special adjustable direct current power supply output on the bottom plate, and the output is divided into 110V and 220V gears, and can be used as an auxiliary power supply for field test. A potentiometer is additionally arranged for the power supply and can be adjusted within the range of 80% -110%.
Test result export interface: the test result and test analysis report used for exporting the format of the electronic document, and the recording data and the recording waveform file in the test process can be used for carrying out the test process and playback of the test waveform.
And (3) a printing interface: for printing test results and test analysis reports.
CPU: the high-speed and high-performance digital control processor is used for test data acquisition, test process control, test result judgment and the like.
The test method of the relay protection device outlet matrix test device comprises the following steps:
step 1, a relay protection device outlet matrix test device reads a fixed value list, control words and outlet matrix information in a tested relay protection device, and sends the read information to the relay protection device outlet matrix test device through a first communication interface of the tested relay protection device;
step 2, setting test items through a control panel or an upper computer of the relay protection device outlet matrix test device, analyzing configuration information such as a fixed value list, a control word, an outlet matrix and the like read from the relay protection device to be tested, and configuring test fixed values, control words and the outlet matrix corresponding to the test items; and the test items are set according to the protection types and the protection contents.
The protection types include bus protection, main transformer protection, generator-transformer group protection and the like, and the protection content is formulated according to industry standards and related relay protection device inspection regulations of the national network and the south network.
Step 3, connecting all protection tripping outlet contacts of the relay protection device to be tested to the switching value switching-in contact of the relay protection device outlet matrix test device; respectively connecting a voltage analog quantity output interface, a current analog quantity output interface and a switching value switching point of the relay protection tester to a voltage analog quantity input interface, a current analog quantity input interface and a switching value switching point of the relay protection device to be tested;
after the setting is completed, the test is started, and the test can be started through a starting button.
Step 4, the relay protection device outlet matrix testing device transmits the test fixed value, the control word and the outlet matrix corresponding to the test item and the test content to the relay protection device to be tested through the first communication interface; the relay protection device outlet matrix test device automatically calculates a current analog quantity, a voltage analog quantity and an opening quantity required to be issued by a test and issues the current analog quantity, the voltage analog quantity and the opening quantity to the relay protection tester through a second Ethernet communication interface;
step 5, after the instruction is issued, automatically starting a test by the relay protection device outlet matrix test device, wherein the test set time is t1+t2 seconds, and after the time is stopped, automatically stopping the test by the relay protection device outlet matrix test device; t1 is the longest time constant value in the constant values of the protection device; t2 is time for preventing the protection device from not timely acting, and t1 and t2 are set to 0.1 or 0.2 seconds;
and 6, automatically judging a test result by the relay protection device outlet matrix test device according to the judgment logic, and sending the test result to a tester.
The judging logic in the step 6 includes: logic 1: the action conditions of switching value switching-on and switching-off points of the relay protection device outlet matrix test device are in one-to-one correspondence with the corresponding points of the set outlet matrix; logic 2: the action time t3 of the switching value opening and closing point returned by the relay protection device outlet matrix test device is set to be a protection action time setting value t4 corresponding to the set outlet matrix, and the error meets the following conditions: t3-t4< ε, where: epsilon is the time error.
The method for automatically judging the test result according to the judgment logic comprises the following steps: when both logic 1 and logic 2 reach logic conditions, judging that the test result is correct; the corresponding contact point number positions and the corresponding action time of the switching value switching-in contact point action of the relay protection device outlet matrix test device are sent to a tester; when one of the logic 1 or the logic 2 reaches the logic condition, or both the logic 1 and the logic 2 can not reach the logic condition, the test result is abnormal; and the corresponding contact point number positions of the switching value opening and closing contact point actions of the relay protection device outlet matrix test device and the contact point number and action time which do not correspond to the setting value of the relay protection device outlet matrix are sent to test staff.
Claims (5)
1. A test method of a relay protection device outlet matrix test device is characterized by comprising the following steps of: the first communication interface and the protection tripping outlet contact of the relay protection device to be tested are respectively connected with the first communication interface and the switching value switching-in contact of the relay protection device outlet matrix test device; the second Ethernet communication interface of the relay protection device outlet matrix test device is connected with the second Ethernet communication interface of the relay protection tester; the current analog output interface, the switching value switching point and the voltage analog output interface of the relay protection tester are respectively connected with the current analog input interface, the switching value switching point and the voltage analog input interface of the relay protection device to be tested;
the test method comprises the following steps:
step 1, a relay protection device outlet matrix test device reads a fixed value list, control words and outlet matrix information in a tested relay protection device, and sends the read information to the relay protection device outlet matrix test device through a first communication interface of the tested relay protection device;
step 2, setting test items through a control panel or an upper computer of an outlet matrix test device of the relay protection device, and configuring test fixed values, control words and outlet matrixes corresponding to the test items;
step 3, connecting all protection tripping outlet contacts of the relay protection device to be tested to the switching value switching-in contact of the relay protection device outlet matrix test device; respectively connecting a voltage analog quantity output interface, a current analog quantity output interface and a switching value switching point of the relay protection tester to a voltage analog quantity input interface, a current analog quantity input interface and a switching value switching point of the relay protection device to be tested;
step 4, the relay protection device outlet matrix testing device transmits the test fixed value, the control word and the outlet matrix corresponding to the test item to the relay protection device to be tested through the first communication interface; the relay protection device outlet matrix test device automatically calculates a current analog quantity, a voltage analog quantity and an opening quantity required to be issued by a test and issues the current analog quantity, the voltage analog quantity and the opening quantity to the relay protection tester through a second Ethernet communication interface;
step 5, after the instruction is issued, automatically starting a test by the relay protection device outlet matrix test device, wherein the test set time is t1+t2 seconds, and after the time is stopped, automatically stopping the test by the relay protection device outlet matrix test device; t1 is the longest time constant value in the constant values of the protection device; t2 is time for preventing the protection device from not timely acting, and t1 and t2 are set to 0.1 or 0.2 seconds;
step 6, the relay protection device outlet matrix test device automatically judges test results according to judgment logic and sends the test results to a tester;
the judging logic in the step 6 includes: logic 1: the action conditions of switching value switching-on and switching-off points of the relay protection device outlet matrix test device are in one-to-one correspondence with the corresponding points of the set outlet matrix; logic 2: the action time t3 of the switching value opening and closing point returned by the relay protection device outlet matrix test device is set to be a protection action time setting value t4 corresponding to the set outlet matrix, and the error meets the following conditions: t3-t4< ε, where: epsilon is the time error;
the method for automatically judging the test result according to the judgment logic comprises the following steps: when both logic 1 and logic 2 reach logic conditions, judging that the test result is correct; the corresponding contact point number positions and the corresponding action time of the switching value switching-in contact point action of the relay protection device outlet matrix test device are sent to a tester; when one of the logic 1 or the logic 2 reaches the logic condition, or both the logic 1 and the logic 2 can not reach the logic condition, the test result is abnormal; and the corresponding contact point number positions of the switching value opening and closing contact point actions of the relay protection device outlet matrix test device and the contact point number and action time which do not correspond to the setting value of the relay protection device outlet matrix are sent to test staff.
2. The test method of the relay protection device outlet matrix test device according to claim 1, wherein the test method comprises the following steps: the first communication interface of the relay protection device outlet matrix test device is an Ethernet interface or a serial communication interface.
3. The test method of the relay protection device outlet matrix test device according to claim 1, wherein the test method comprises the following steps: the relay protection device outlet matrix test device comprises a CPU, a control panel, an external interface, a first communication interface, a second Ethernet communication interface and a switching value switching point are respectively connected with the CPU, and a power module provides power for the whole relay protection device outlet matrix test device.
4. The test method of the relay protection device outlet matrix test device according to claim 3, wherein: the external interface comprises an auxiliary test power output interface, a test result export interface and a printing interface.
5. The test method of the relay protection device outlet matrix test device according to claim 1, wherein the test method comprises the following steps: and the test items are set according to the protection types and the protection contents.
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