CN201993444U - Relay testing device and system - Google Patents
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- CN201993444U CN201993444U CN2010206496440U CN201020649644U CN201993444U CN 201993444 U CN201993444 U CN 201993444U CN 2010206496440 U CN2010206496440 U CN 2010206496440U CN 201020649644 U CN201020649644 U CN 201020649644U CN 201993444 U CN201993444 U CN 201993444U
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Abstract
The utility model discloses a relay testing device and a system. The device comprises a detection processing unit, a program-controlled direct-current power supply, a program-controlled alternating-current power supply, an analog load, a contact feedback device, a resistance measuring device and a relay connecting end. The detection processing unit is connected with the program-controlled direct-current power supply, the program-controlled alternating-current power supply, the analog load, the contact feedback device and the resistance measuring device, and the program-controlled direct-current power supply, the program-controlled alternating-current power supply, a power supply polarity switching device, the analog load, the contact feedback device and the resistance measuring device are connected with the relay connecting end; and the detection processing unit is used for controlling direct-current power provided by the program-controlled direct-current power supply for a relay to be tested, alternating-current power provided by the program-controlled alternating-current power supply for the relay to be tested and over current provided by the analog load for the relay to be tested according to received external control commands, the contact feedback device is used for returning contact feedback signals to the detection processing unit, and the detection processing unit is used for generating testing results and reading measurement results generated by the resistance measuring device.
Description
Technical Field
The utility model discloses a relay test technique about electric power system, especially about electronic type magnetic latching relay for electric energy meter's test technique, specific saying is a relay test equipment and system.
Background
The magnetic latching relay has strong magnetic latching capacity, can act under the action of pulse, and has the characteristics of low power consumption, high sensitivity, small volume, good contact stability of contacts and the like. In view of the above advantages and characteristics, a magnetic latching relay is introduced into an electric energy path of an electronic electric energy meter to increase stable reliability of operation of the electric energy meter and to reduce electric energy consumption of the electric energy meter itself.
At present, magnetic latching relays used in electronic electric energy meters at home and abroad come from different manufacturers, the performance of products is very different, some relays have the problems of being incapable of being reliably switched on and off, large power consumption and the like, the requirements of actual operation of the electric energy meters cannot be met, potential hazards are caused to the realization of the functions and the performance of the electronic electric energy meters, and therefore the magnetic latching relays for the electronic electric energy meters need to be tested.
Although there is the relevant technical standard to electronic type magnetic latching relay for electric energy meter to detect at present domestically, but during actual detection, there is not ripe detection device, and the main problem that present detection device exists has: firstly, the detection items are single, and only part of parameters of the relay can be simply detected; secondly, automation cannot be realized in the detection process, data needs manual processing and analysis, the detection result has various randomness and manual performance, and the efficiency is low; and in the detection process, the voltage is higher, the current is larger, and people and equipment are lack of corresponding protection, so that the detection safety cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a relay test equipment carries out electric property test, life test and security performance test to the relay through this equipment.
The utility model discloses an one of the purpose provides a relay test equipment, and this equipment includes: the device comprises a detection processing device, a program-controlled direct-current power supply, a program-controlled alternating-current power supply, an analog load, a contact feedback device, a resistance measuring device and a relay connecting end; the detection processing device is connected with the program-controlled direct-current power supply, the program-controlled alternating-current power supply, the analog load, the contact feedback device and the resistance measuring device, and the program-controlled direct-current power supply, the program-controlled alternating-current power supply, the power polarity switching device, the analog load, the contact feedback device and the resistance measuring device are connected with the relay connecting end; the detection processing unit controls a direct current power supply provided by the program-controlled direct current power supply to the tested relay, an alternating current power supply provided by the program-controlled alternating current power supply to the tested relay and overcurrent provided by the analog load to the tested relay according to the received external control command, the contact feedback device detects contact actions of the tested relay and returns contact feedback signals to the detection processing unit, and the detection processing unit generates a test result according to the received contact feedback signals and reads the measurement result generated by the resistance measuring device.
The utility model discloses an one of the purpose provides a relay test system, and this system includes: the main control computer is used for controlling the relay testing equipment; the relay test apparatus includes: the device comprises a detection processing device, a program-controlled direct-current power supply, a program-controlled alternating-current power supply, an analog load, a contact feedback device, a resistance measuring device and a relay connecting end; the detection processing device is connected with the program-controlled direct-current power supply, the program-controlled alternating-current power supply, the analog load, the contact feedback device and the resistance measuring device, and the program-controlled direct-current power supply, the program-controlled alternating-current power supply, the power polarity switching device, the analog load, the contact feedback device and the resistance measuring device are connected with the relay connecting end; the detection processing unit controls a direct current power supply provided by the program-controlled direct current power supply to the tested relay, an alternating current power supply provided by the program-controlled alternating current power supply to the tested relay and overcurrent provided by the analog load to the tested relay according to the received external control command, the contact feedback device detects contact actions of the tested relay and returns contact feedback signals to the detection processing unit, and the detection processing unit generates a test result according to the received contact feedback signals and reads the measurement result generated by the resistance measuring device.
Through the utility model discloses can realize electrical property test, life-span test and the security performance test to magnetic latching relay, realize to each test item's integrated test, through with master control CPU between the communication, directly gather test data, raise the efficiency, through master control CPU control operation relay, avoid staff manual operation's process, improve the security.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a block diagram of the connection between the relay testing device and the tested relay of the present invention;
fig. 2 is a block diagram of the detection processing device of the relay testing apparatus of the present invention;
FIG. 3 is a schematic diagram of the relay test equipment connected to a remote computer via an Ethernet network;
FIG. 4 is a schematic structural view of the present invention;
fig. 5 is a block diagram of the relay connection end of the present invention;
FIG. 6 is a flow chart of a test of the operating voltage of the relay;
fig. 7 is a schematic structural diagram of an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in FIG. 1, the utility model discloses relay test equipment is connected with the block diagram of being surveyed the relay. In fig. 1, the utility model discloses a relay test equipment includes: the device comprises a detection processing device 101, a program-controlled direct-current power supply 102, a power supply polarity switching device 103, a relay connecting end 104, a contact feedback device 105, an analog load 106, a program-controlled alternating-current power supply 107 and a resistance measuring device 108.
The detection processing device 101 is used for controlling the corresponding device according to an externally input control command and executing a corresponding function test. The program-controlled direct current power supply 102 is used for providing a working power supply for an internal coil of the relay to be tested; a power polarity switching device 103 for switching the voltage polarity of the internal coil of the relay to be tested according to the control command received by the detection processing device 101 so as to control the opening and closing of the relay to be tested; the relay connecting end 104 is used for connecting the relay testing equipment of the utility model with the tested relay through the relay connecting end 104; a contact feedback device 105 for detecting whether the contact of the relay to be detected is operated, and returning a contact feedback signal to the detection processing device 101; the simulation load 106 is used for providing large current for the relay during load test; the program-controlled alternating current power supply 107 is used for providing an alternating current driving power supply for the relay to be tested; and a resistance measuring device 108 for measuring the contact resistance of the relay contact to be measured.
As shown in fig. 2, the detection processing apparatus 101 includes: a detection instruction receiving unit 1011 that receives a detection control command transmitted from an external device; the detection power supply control unit 1012 controls the voltage and current values applied to the relay to be detected by the program-controlled direct-current voltage 102, the program-controlled alternating-current power supply 107 and the analog load 108 according to the received control command; the detection signal acquisition unit 1013 receives a contact feedback signal returned by the contact feedback device according to the control command, and reads the resistance value measured by the resistance measurement device; and a detection result generating unit 1014 for generating a detection result according to the received contact feedback signal and the read resistance value and returning the detection result to the external control device.
In practical application, can with the utility model discloses relay test equipment passes through the ethernet and is connected with a remote computer, as shown in fig. 3, through remote computer control relay test equipment's work. If through configuration in advance, the relay type and the test item of storage difference in remote computer set up corresponding relay parameter and test parameter, adopt the utility model discloses when relay test equipment tested the relay, select the relay type and the test item that are surveyed through remote computer, remote computer generates control command according to what user selected by relay type and test item, and relay test equipment controls each device according to the control command who receives. The relay testing device of the present invention will be described in further detail with specific test items.
Example 1
In practical application, when the magnetic latching relay is subjected to an electrical performance test, a schematic connection diagram inside the relay test equipment is shown in fig. 4. The master control CPU401 is used as the detection processing device 101, the ohmmeter 404 is used as the resistance measuring device 108, the magnetic latching relay driving switch 406 is used as the power supply polarity switching device 103, and the time counting device 405 is used to measure the operation time of the magnetic latching relay. The timer device 405, the magnetic latching relay drive switch 406, the contact feedback device 105, and the analog load 106 are directly connected to the main control CPU 401. The contact master control CPU401 controls the gating of the programmable ac voltage 107 and the programmable dc power supply 102 through the electronic switch 409, and the programmable ac voltage 107, the programmable dc power supply 102, and the ohmmeter 404 are all connected to the electronic switch 409 through the 232 interface.
As shown in fig. 5, the relay connection end 104 of the present invention includes a resistance measurement connection end 1041, an ac power connection end 1042, a dc power connection end 1043, a simulation load connection end 1044 and a contact feedback connection end 1045. In this embodiment, the ohmmeter stylus of the ohmmeter 404 may be used as the resistance measurement connection terminal, the ac current outgoing line of the programmable ac power supply 107 may be used as the ac power supply connection terminal 1042, the voltage outgoing line of the programmable dc power supply may be used as the dc power supply connection terminal 1043, and the current line of the analog load 106 may be used as the analog load connection terminal 1044. The connections of each device can be connected to the terminals of the relay coil under test by wires having alligator clips in this embodiment. It is right to take the specific operation of testing magnetic latching relay as an example below the utility model discloses do further detailed description, wherein, carry out the electrical property test to magnetic latching relay includes:
1. testing contact resistance of magnetic latching relay
Firstly, the contact of the tested magnetic latching relay is in a closed state, the magnetic latching relay is fixed on a testing device, and a testing meter pen of the ohm meter 404 is connected to two ends of the output terminal of the tested relay.
The user selects the type of the relay to be tested through the remote computer, the type of the relay to be tested is selected according to the preselection setting to generate a control command, the main control CPU401 gates the electronic switch 409 according to the control command to realize the connection with the ohmmeter 404, the ohmmeter 404 tests the ohm value of the relay contact, the main control CPU401 reads the measured value of the ohmmeter 404 to generate a test result, and the test result is uploaded to the remote computer through the Ethernet.
2. Testing the action voltage value of a magnetic latching relay
Firstly, the magnetic latching relay contact is kept in an open state, and the direct current power supply connection terminal 1043 of the program control direct current power supply 102 is connected to the magnetic latching relay drive coil. The contact feedback connection 1045 of the relay test equipment is connected to the contacts of the magnetic latching relay.
As shown in fig. 6, the main control CPU401 communicates with the program-controlled dc power supply 102 according to an external control command to gradually increase the voltage of the magnetic latching relay (step S101), the main control CPU401 detects whether a contact feedback signal is received (step S102), when the relay operating voltage is reached, the relay contact is closed, the contact feedback connection terminal 1045 detects that the relay contact operates to generate a contact feedback signal, and the main control CPU401 reads the voltage value of the program-controlled dc power supply 102 (step S103), that is, the operating voltage value, that is, the pull-in value, of the relay. After the relay action voltage is reached, the contact of the electric appliance is closed, the master control CPU reverses the voltage polarities at the two ends of the relay coil through the magnetic latching relay drive switch 406, the voltage of the program control direct current power supply 102 is increased step by step again, the relay contact is disconnected, the contact feedback connection end 1045 detects the action of the relay contact to generate a contact feedback signal, the master control CPU401 reads the voltage value of the program control direct current power supply 102 at the moment, and the value is the reverse action voltage value, namely the release value of the relay.
3. Testing the action time of a magnetic latching relay
The program-controlled direct current power supply 102 is connected to a driving coil of the magnetic latching relay to be tested through the power polarity switching device 103, and a contact feedback connection end 1045 of the relay testing equipment is connected to a contact of the magnetic latching relay. The main control CPU401 determines the rated voltage of the magnetic latching relay to be tested according to the received control command, and the main control CPU401 communicates with the programmable DC power supply 102 to increase the voltage of the programmable DC power supply 102 to the rated voltage of the magnetic latching relay. The power polarity switching device 103 has a power switch therein to control the switching on and off of the programmable dc power supply and the polarity of the dc power supply provided to the relay to be tested. The main control CPU401 controls the power supply switching switch inside the power supply polarity switching device to be closed, and at the same time, the main control CPU401 starts the timing device 405 to start timing. When the relay acts, an optical coupler in the contact feedback device is switched on, and a relay action signal is sent to the main control CPU 401. The master CPU401 receives the contact feedback signal, and stops the timer 405. The time counted by the timer 405 is the operation time of the magnetic latching relay.
The service life test of the magnetic latching relay comprises the following steps:
1. testing the electrical service life of the magnetic latching relay; 2. the mechanical life of the magnetic latching relay was tested.
The specific operation of testing the electrical life of a magnetic latching relay is as follows:
the outlet of the programmable DC power supply 102 of the testing device is connected to the driving coil of the magnetic latching relay through the magnetic latching relay switch 406, and the connecting ends of the analog load 106 and the contact feedback device 105 are connected to the contacts of the relay. The analog load 106 is used for providing a working load for the relay to be tested and simulating the working state of the magnetic latching relay. The main control CPU401 determines the contact rated voltage, rated current, action times and action interval time of the relay to be tested according to the control command sent from the outside, sets the voltage loaded to the driving coil of the magnetic latching relay and the current of the relay contact through the main control CPU401, the program-controlled DC power supply 102 and the analog load 106, and controls the action times and the action interval of the magnetic latching relay through the communication with the magnetic latching relay switch 406 to test the electric service life of the magnetic latching relay.
Similarly, the mechanical life test of the magnetic latching relay is carried out by firstly connecting the outgoing line of the programmable DC power supply 102 of the test device to the driving coil of the magnetic latching relay through the magnetic latching relay switch 406, and connecting the contact feedback connection end of the test device to the contact of the relay. The main control CPU401 determines the rated contact voltage, the action times and the action interval time of the relay to be tested according to a control command sent from the outside, the voltage loaded to the driving coil of the magnetic latching relay is set through the main control CPU401 and the program control direct current power supply 102, the driving switch of the magnetic latching relay is an electronic switch and has two control ends, and when the two control ends are alternately at high and low levels, the polarity of the power supply output by the driving switch of the magnetic latching relay is also switched. The main control CPU401 controls the number of times and the operation time interval of the magnetic latching relay by communicating with the magnetic latching relay drive switch 406, and performs a mechanical life test on the magnetic latching relay. Through the utility model discloses a relay test equipment can also realize the overload test to magnetic latching relay, and concrete operation is as follows:
the outlet of the programmable dc power supply 102 of the test device is first connected to the drive coil of the latching relay via the latching relay switch 406, and the terminals of the analog load 106 and the contact feedback device are wired to the contacts of the relay. The main control CPU401 determines the rated voltage of the relay to be tested according to the control command, sets the voltage of the relay driving coil to the rated voltage through communication with the programmable dc power supply 102, and applies an overload current to the relay contact to be tested through the dummy load 106. The specific protocol for testing was as follows:
the first scheme is as follows: the output current of the dummy load 106 is set to 1.5 times the rated current of the relay contacts. Setting rated action voltage of a coil of the magnetic latching relay through an external control device, wherein the action frequency is 100 times, and the action frequency is 10 times per minute;
scheme II: the output current of the dummy load 106 is set to 30 times the rated current of the relay contacts. The rated action voltage of the coil of the magnetic latching relay is set through an external control device, the action time is 10ms, the interval is 2min, and the action is performed for 3 times.
When the overload test is performed, the above test scheme may be selected according to the test requirement, and the main control CPU401 controls the magnetic latching relay to perform a non-stop operation at a predetermined time interval, to complete a predetermined number of operations, or to stop the operation when the magnetic latching relay cannot be reliably opened or closed. In this case, the number of times of successful operation is displayed on the external control device, and if the number of times of operation is less than the number of times specified by the recipe, "unsatisfactory" is presented, and if the number of times of operation is equal to the number of times specified by the recipe, the contact damage condition is checked.
In this embodiment, the main control CPU401 is connected to a remote computer, and the remote computer can set test parameters and receive a test result generated by the main control CPU 401. Through the utility model discloses a relay test equipment can realize electrical property test, life-span test and the security performance test to magnetic latching relay, through remote computer control operation relay, has avoided staff manually operation's process, has improved the accuracy of operation security and test result.
Example 2
As shown in fig. 7, the utility model discloses a relay test equipment still includes 485 interfaces 701 and the carrier interface 702 that communicate with the electric energy meter, utilizes this communication interface and electronic type electric energy meter communication terminal to connect and communicate, can realize life-span test and the overload test to the relay in the electronic type electric energy meter.
When the electric energy meter which is communicated through RS485 is mechanically tested, an RS485 communication interface 701 of a testing device is connected to a 485 communication terminal of the electric energy meter, an outgoing line of a programmable alternating-current power supply 107 is connected to a voltage loop of the electric energy meter, rated voltage is applied to the electric energy meter, a main control CPU401 is communicated with the electric energy meter, magnetic retention relay contacts in the electric energy meter are controlled to be not stopped and disconnected, and the mechanical life test of the relay is carried out.
When the electric service life test is carried out, an RS485 communication interface of the test bench is connected to an RS485 communication terminal of the electric energy meter, an RS485 communication interface of the test device is connected to a 485 communication terminal of the electric energy meter, an outgoing line of the program-controlled alternating current power supply 107 is connected to a voltage loop of the electric energy meter, an outgoing line of the analog load 106 is connected to a current loop of the electric energy meter, rated voltage and rated current are applied to the electric energy meter, the master control CPU401 is communicated with the electric energy meter to control the magnetic latching relay contact in the electric energy meter to be continuously switched on and switched off, and the electric service life test of the magnetic latching relay of the electric energy meter is realized.
When the overload test is carried out on the magnetic latching relay of the electronic electric energy meter, the RS485 communication interface is connected to the 485 communication terminal of the electric energy meter, overload current is applied to a current loop of the electric energy meter, the master control CPU is communicated with the electric energy meter, and the magnetic latching relay contact in the electric energy meter is controlled to be continuously switched on and off so as to carry out the overload test on the relay.
Through the communication interface that communicates with the electric energy meter, can directly test the relay in the electric energy meter, need not to demolish the relay in the electric energy meter and test, can be used to the detection before the on-the-spot installation of electronic type electric energy meter, ensure that the relay of electronic type electric energy meter satisfies the requirement of relevant standard, improve work efficiency, establish the basis to going on smoothly of electric power marketing.
In the above embodiment, the control of the contact opening and closing of the magnetic latching relay is realized by controlling the driving switch of the magnetic latching relay, as shown in fig. 8, the testing device of the present invention employs the ac relay driving switch 801, so as to realize some performance tests of the ac relay.
The testing device of the utility model can not only complete the electrical performance test, the service life test and the safety performance test of the magnetic latching relay for the electronic electric energy meter, but also perform the auxiliary test on the environmental suitability of the magnetic latching relay for the electronic electric energy meter, thereby realizing the integration of a plurality of testing functions; the device can also control the on-off action of the magnetic latching relay in the electronic electric energy meter through communication with the electronic electric energy meter in modes of RS485, carrier wave and the like, so that the automatic test of the service life and the overload capacity of the magnetic latching relay in the electronic electric energy meter is realized, and the cooperation of software and hardware of a relay loop and a relay control loop of the electric energy meter can be checked; the device sets testing parameters and a testing flow through a palm computer or a computer, realizes the full automation of the testing process, improves the testing efficiency and ensures the safety of testing personnel; the device can realize automatic storage and processing of test result data, and can also automatically generate a test report according to the template, thereby ensuring the reliability of the data; in addition, the device can also test some common alternating current relays.
The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (10)
1. A relay testing apparatus, comprising: the device comprises a detection processing device, a program-controlled direct-current power supply, a program-controlled alternating-current power supply, an analog load, a contact feedback device, a resistance measuring device and a relay connecting end;
the detection processing device is connected with the program-controlled direct-current power supply, the program-controlled alternating-current power supply, the analog load, the contact feedback device and the resistance measuring device, and the program-controlled direct-current power supply, the program-controlled alternating-current power supply, the power polarity switching device, the analog load, the contact feedback device and the resistance measuring device are connected with the relay to be detected through the relay connecting end;
the detection processing unit controls the direct current power supply provided by the program-controlled direct current power supply to the tested relay, the alternating current power supply provided by the program-controlled alternating current power supply to the tested relay and the over current provided by the analog load to the tested relay according to the received external control command, the contact feedback device detects the contact action of the tested relay and returns a contact feedback signal to the detection processing unit, and the detection processing device generates a test result according to the received contact feedback signal and reads the measurement result generated by the resistance measuring device.
2. The relay testing apparatus of claim 1, further comprising: and the power polarity switching device controls the switching-on or switching-off of the program-controlled direct-current power supply and the polarity of the direct-current power supply provided for the relay to be tested.
3. The relay testing apparatus of claim 1, wherein the detection processing means comprises:
a detection instruction receiving unit which receives a detection control command sent by an external device;
the detection power supply control unit controls the voltage and current values provided by the program-controlled direct-current voltage, the program-controlled alternating-current power supply and the analog load to the relay to be detected according to the received control command;
the detection signal acquisition unit is used for receiving the contact feedback signal returned by the contact feedback device and reading the resistance value measured by the resistance measuring device;
and the detection result generating unit generates a detection result according to the received contact feedback signal and the read resistance value and returns the detection result to the external control equipment.
4. The relay testing apparatus of claim 1, wherein the relay connection terminals comprise:
the resistance measuring connecting end is used for connecting the resistance measuring device to the relay to be measured;
the alternating current power supply connecting end connects the alternating current power supply to the relay to be tested;
the direct current power supply connecting end connects the direct current power supply to the relay to be tested;
the analog load connecting end connects the analog load to the relay to be tested;
and the contact feedback connecting end is used for connecting the contact feedback device to the relay to be tested.
5. The relay testing apparatus of claim 1, further comprising: and the electronic switch is used for gating the connection of the program-controlled direct-current power supply, the program-controlled alternating-current power supply, the analog load, the contact feedback device and the resistance measuring device with the detection processing device according to an external control command.
6. The relay testing apparatus of claim 5, wherein the electronic switch is connected to the programmable DC power supply, the programmable AC power supply, and the resistance measuring device via a 232 interface.
7. The relay testing apparatus of claim 1, further comprising:
and the electric energy meter communication port is used for connecting the relay test equipment with the electric energy meter and testing the relay of the electric energy meter.
8. The relay testing apparatus of claim 1, wherein the apparatus comprises:
and the timing device is used for measuring the action time of the relay to be tested.
9. A relay testing system, said system comprising: the remote computer is used for controlling the relay testing equipment; wherein,
the relay test equipment includes:
the device comprises a detection processing device, a program-controlled direct-current power supply, a program-controlled alternating-current power supply, an analog load, a contact feedback device, a resistance measuring device and a relay connecting end;
the detection processing device is connected with the program-controlled direct-current power supply, the program-controlled alternating-current power supply, the analog load, the contact feedback device and the resistance measuring device, and the program-controlled direct-current power supply, the program-controlled alternating-current power supply, the power polarity switching device, the analog load, the contact feedback device and the resistance measuring device are connected with the relay connecting end;
the detection processing unit controls the direct current power supply provided by the program-controlled direct current power supply to the tested relay, the alternating current power supply provided by the program-controlled alternating current power supply to the tested relay and the over current provided by the analog load to the tested relay according to the received external control command, the contact feedback device detects the contact action of the tested relay and returns a contact feedback signal to the detection processing unit, and the detection processing device generates a test result according to the received contact feedback signal and reads the measurement result generated by the resistance measuring device.
10. The relay testing system of claim 9, wherein the relay testing device is connected to a remote computer via an ethernet network.
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| CN2010206496440U CN201993444U (en) | 2010-12-09 | 2010-12-09 | Relay testing device and system |
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| CN2010206496440U CN201993444U (en) | 2010-12-09 | 2010-12-09 | Relay testing device and system |
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-
2010
- 2010-12-09 CN CN2010206496440U patent/CN201993444U/en not_active Expired - Lifetime
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| CN105068000A (en) * | 2015-08-25 | 2015-11-18 | 天津市英贝特航天科技有限公司 | Circuit and method for detection of relay actuation time |
| CN106291024A (en) * | 2016-08-02 | 2017-01-04 | 广西云涌科技有限公司 | A kind of chopper test ammeter box of function when possessing survey |
| CN106154156A (en) * | 2016-09-23 | 2016-11-23 | 上海地铁维护保障有限公司 | Relay contact analog control system table apparatus |
| CN106546915A (en) * | 2016-10-27 | 2017-03-29 | 简式国际汽车设计（北京）有限公司 | A kind of high-voltage relay adhesion state detection circuit and system |
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| CN106707155A (en) * | 2016-12-30 | 2017-05-24 | 中车长春轨道客车股份有限公司 | Small-capacity contactor acting characteristic test system and method |
| CN106772017A (en) * | 2017-01-17 | 2017-05-31 | 云南电网有限责任公司西双版纳供电局 | Actuating of relay power automatic measuring instrument |
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| CN106885985B (en) * | 2017-02-28 | 2019-03-26 | 中国人民解放军空军工程大学 | Aircraft fuel oil DC power distribution unit (PDU) detection system and detection method |
| CN107037358A (en) * | 2017-06-16 | 2017-08-11 | 国网辽宁省电力有限公司锦州供电公司 | Portable beaker non-whole phase protection time tester and method of testing |
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| CN107544474A (en) * | 2017-10-19 | 2018-01-05 | 中广核工程有限公司 | A kind of nuclear power plant's relay logic processing rack experimental rig and method |
| CN109031104B (en) * | 2018-06-12 | 2021-04-16 | 南京国电南自电网自动化有限公司 | Relay contact performance detection device for relay protection device |
| CN109031104A (en) * | 2018-06-12 | 2018-12-18 | 南京国电南自电网自动化有限公司 | One kind being used for protective relaying device relay contact device for detecting performance |
| CN109061456A (en) * | 2018-08-15 | 2018-12-21 | 格力电器（武汉）有限公司 | Detection device and detection system |
| CN111122994A (en) * | 2018-10-31 | 2020-05-08 | 南京南瑞继保电气有限公司 | Man-machine interaction testing device for simulation circuit breaker |
| CN111122994B (en) * | 2018-10-31 | 2022-04-19 | 南京南瑞继保电气有限公司 | Man-machine interaction testing device for simulation circuit breaker |
| CN111190055A (en) * | 2018-11-15 | 2020-05-22 | 河南许继仪表有限公司 | Relay contact resistance testing arrangement |
| CN110045272A (en) * | 2018-12-21 | 2019-07-23 | 核动力运行研究所 | Relay test platform composite control apparatus |
| CN110221199A (en) * | 2019-06-05 | 2019-09-10 | 厦门立林电气控制技术有限公司 | A kind of Aftercurrent protection circuit breaker test machine |
| CN110133414A (en) * | 2019-06-05 | 2019-08-16 | 厦门立林电气控制技术有限公司 | A kind of test machine of magnetictrip |
| CN110133414B (en) * | 2019-06-05 | 2021-06-08 | 厦门立林电气控制技术有限公司 | Test machine of electromagnetic release |
| CN110221199B (en) * | 2019-06-05 | 2021-06-08 | 厦门立林电气控制技术有限公司 | Residual current protection circuit breaker test machine |
| CN110426627A (en) * | 2019-08-19 | 2019-11-08 | 南京国电南自电网自动化有限公司 | Protective relaying device power relay contact Performance Test System |
| CN110426627B (en) * | 2019-08-19 | 2021-11-12 | 南京国电南自电网自动化有限公司 | Power relay contact performance test system for relay protection device |
| CN113125945A (en) * | 2020-01-15 | 2021-07-16 | 中国商用飞机有限责任公司 | Onboard relay testing system and onboard relay testing method |
| CN111458584A (en) * | 2020-04-16 | 2020-07-28 | 广东电网有限责任公司 | Automatic energy efficiency test platform and test method for power electronic equipment |
| CN112946465A (en) * | 2021-02-06 | 2021-06-11 | 国家电网有限公司 | Portable detection device for relay action power |
| CN113589218A (en) * | 2021-08-06 | 2021-11-02 | 广西电网有限责任公司贵港供电局 | Action tester of external circuit breaker of cost control electric energy meter |
| CN115236504A (en) * | 2022-09-26 | 2022-10-25 | 广东电网有限责任公司佛山供电局 | Intelligent quick calibration device for relay |
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