CN200956349Y - Circuit breaker under-voltage action detecting device - Google Patents
Circuit breaker under-voltage action detecting device Download PDFInfo
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- CN200956349Y CN200956349Y CN 200620027379 CN200620027379U CN200956349Y CN 200956349 Y CN200956349 Y CN 200956349Y CN 200620027379 CN200620027379 CN 200620027379 CN 200620027379 U CN200620027379 U CN 200620027379U CN 200956349 Y CN200956349 Y CN 200956349Y
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Abstract
The utility model relates to a breaker undervoltage motion detection device, which includes a voltage regulation circuit, a switch circuit, a triggering circuit and a computer. The voltage regulation circuit comprises a voltage regulation transformer and a measurement transformer. The taps of the secondary coil of the measurement transformer are grouped by two, and the voltages of each group of taps are separately 100% and 50% of the rated voltage of the undervoltage release. The shift circuit comprises a contactor and a bidirectional thyristor, each group of taps of the measurement transformer are separately connected with one end of one group of corresponding normally-open or normally-closed contacts, and the other ends of the contacts are parallel connected and then connected with two bidirectional thyristors. The output ends of the triggering circuit are separately connected with the gates of the two bidirectional thyristors, and the computer is connected with the input end of the optic coupler of the triggering circuit. Utilization of the contactor and the bidirectional thyristor switch method enables accurate detection of motion time and recovery time of the undervoltage release, and the high switch frequency of the switch circuit greatly improves detection speed of undervoltage release parameters of the breaker, saves labor cost and improves production efficiency.
Description
Affiliated technical field
The utility model belongs to the circuit breaker detection and uses experimental rig, particularly relates to a kind of circuit breaker low-voltage checkout gear.
Background technology
At present known circuit breaker production for the band device for under-voltage releasing equipment is at work in order to solve the problem that detects device for under-voltage releasing equipment operate time and recovery time, mostly be to adopt the mode of manual switching voltage to make the device for under-voltage releasing equipment action, so just can not accurately measure, can only depend merely on directly perceived going up and judge that whether device for under-voltage releasing equipment moves whether qualified detect device for under-voltage releasing equipment the operate time and the recovery time of device for under-voltage releasing equipment.And such detection mode has been difficult to adapt in the production now for the required precision of being with the examination of device for under-voltage releasing equipment circuit breaker performance.
Summary of the invention
The utility model provides a kind of circuit breaker low-voltage checkout gear that can accurately measure device for under-voltage releasing equipment operate time and recovery time for solving the technical problem that exists in the known technology.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: it includes regulating circuit, commutation circuit, circuits for triggering and computer; Described regulating circuit is made up of voltage regulating transformer and measuring transformer, the outlet side of voltage regulating transformer is the input side of measuring transformer, wherein the tap of measuring transformer secondary coil is two one group, and the magnitude of voltage of every group of tap is respectively the 1 times of rated voltage and 50% rated voltage of device for under-voltage releasing equipment; Described commutation circuit is made up of contactor and bidirectional thyristor, wherein every group of tap of measuring transformer connects an end of often opening of a corresponding winding tentaculum or normally-closed contact respectively, and a described winding tentaculum often open or the other end of normally-closed contact and connect after connect the bidirectional thyristor that is used for switching different group rated voltages respectively, the bidirectional thyristor other end connect together and with zero volt end of measuring transformer jointly as the test lead of test both opens device; The output of described circuits for triggering connects two bidirectional thyristor gate poles in the commutation circuit respectively, and described circuits for triggering are made up of step-down transformer, diode full-wave rectifying circuit, filter circuit, voltage stabilizing circuit and triode signal generating circuit; The input of optocoupler in the triode signal generating circuit in the computer contact Power Generation Road.
The utility model can also adopt following technical measures:
Described computer can be single-chip microcomputer, industrial control computer or PLC.
Advantage and the good effect that the utlity model has are: owing to adopt this contactor and bidirectional thyristor to carry out the switching mode of rated voltage and 50% rated voltage, not only can accurately detect the operate time and the recovery time of device for under-voltage releasing equipment, and the higher switching frequency of commutation circuit has improved the detection speed of circuit breaker undervoltage tripping parameter greatly, both saved labour cost, guarantee accuracy of detection, improved production efficiency again.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplifies now and followingly detect the embodiment that rated voltage is 380 volts and 220 volts two kinds device for under-voltage releasing equipment of breaker operate times and recovery time, and conjunction with figs. is described in detail as follows:
As shown in Figure 1, the utility model includes regulating circuit 1, commutation circuit 2 and circuits for triggering 3.The secondary side of voltage regulator T1 is the primary side of measuring transformer T2, and the secondary side of measuring transformer T2 has 110 volts, 190 volts, 220 volts and 380 volts of four taps.Wherein 110 volts and 190 volts of taps connect the normally opened contact of contactor JQ10 and an end of normally-closed contact respectively; 220 volts and 380 volts of taps connect the normally opened contact of contactor JQ11 and an end of normally-closed contact respectively.The other end of JQ10 normally opened contact and normally-closed contact also connects the back with the other end of the anode, JQ11 normally opened contact and the normally-closed contact that meet bidirectional thyristor ZD1 and connect the back with connecing the negative electrode of bidirectional thyristor ZD2, the negative electrode of bidirectional thyristor ZD1 and bidirectional thyristor ZD2 also connect the test electrode end of back as detected circuit breaker, and 0 volt of one end of measuring transformer T2 secondary side is as another test electrode end of detected circuit breaker.The triggering signal output of circuits for triggering 3 connects the gate pole of ZD1 and ZD2 respectively, and the controlled signal input 15PB5 of circuits for triggering 3 and 16PB6 connect the control signal output ends of computer respectively.
The switching of contactor JQ10 and JQ11 can be undertaken by artificial or computer control.
Wherein computer can be single-chip microcomputer, industrial control computer or PLC.
Its course of work is: when beginning to detect with the device for under-voltage releasing equipment coil tandem of circuit breaker between 0 volt of tap of output of the output of commutation circuit 2 and regulating circuit 1, select the output tap group (as 380V and 190V) of corresponding regulating circuit 1 according to the concrete model of the device for under-voltage releasing equipment of circuit breaker by artificial or computer, control corresponding contactor and realize the group switching, realize rated voltage and under-voltage change detection by other bidirectional thyristor break-make of computer control respective sets then; When selecting 380V and 190V, JQ10, JQ11 are failure to actuate, and ZD1 is logical, ZD2 is disconnected, and the voltage of device for under-voltage releasing equipment is rated value, and device for under-voltage releasing equipment is failure to actuate; Keep, JQ10, JQ11 are failure to actuate, control ZD2 is logical, ZD1 is disconnected, and promptly the magnitude of voltage of device for under-voltage releasing equipment is reduced to 50% rated voltage, utilizes the operate time of computer recording device for under-voltage releasing equipment simultaneously, device for under-voltage releasing equipment action timing stops, while is a rated value with the voltage switchback of device for under-voltage releasing equipment once more, and promptly ZD1 is logical, ZD2 is disconnected, and the recovery time of opening entry device for under-voltage releasing equipment, device for under-voltage releasing equipment recovers timing to be stopped, and finishes parameter measurement.
Claims (2)
1. circuit breaker low-voltage checkout gear, it is characterized in that: it includes regulating circuit, commutation circuit, circuits for triggering and computer; Described regulating circuit is made up of voltage regulating transformer and measuring transformer, the outlet side of voltage regulating transformer is the input side of measuring transformer, wherein the tap of measuring transformer secondary coil is two one group, and the magnitude of voltage of every group of tap is respectively the 1 times of rated voltage and 50% rated voltage of device for under-voltage releasing equipment; Described commutation circuit is made up of contactor and bidirectional thyristor, wherein every group of tap of measuring transformer connects an end of often opening of a corresponding winding tentaculum or normally-closed contact respectively, and a described winding tentaculum often open or the other end of normally-closed contact and connect after connect the bidirectional thyristor that is used for switching different group rated voltages respectively, the bidirectional thyristor other end connect together and with zero volt end of measuring transformer jointly as the test lead of test both opens device; The output of described circuits for triggering connects two bidirectional thyristor gate poles in the commutation circuit respectively, and described circuits for triggering are made up of step-down transformer, diode full-wave rectifying circuit, filter circuit, voltage stabilizing circuit and triode signal generating circuit; The input of optocoupler in the triode signal generating circuit in the computer contact Power Generation Road.
2. circuit breaker low-voltage checkout gear according to claim 1 is characterized in that; Described computer can be single-chip microcomputer, industrial control computer or PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620027379 CN200956349Y (en) | 2006-09-21 | 2006-09-21 | Circuit breaker under-voltage action detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620027379 CN200956349Y (en) | 2006-09-21 | 2006-09-21 | Circuit breaker under-voltage action detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200956349Y true CN200956349Y (en) | 2007-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620027379 Expired - Fee Related CN200956349Y (en) | 2006-09-21 | 2006-09-21 | Circuit breaker under-voltage action detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200956349Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569800A (en) * | 2014-12-26 | 2015-04-29 | 江苏国星电器有限公司 | Undervoltage tripper condition monitoring device |
| CN106716155A (en) * | 2014-08-12 | 2017-05-24 | 欧米克朗电子有限公司 | Test system and method for testing a circuit breaker |
-
2006
- 2006-09-21 CN CN 200620027379 patent/CN200956349Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106716155A (en) * | 2014-08-12 | 2017-05-24 | 欧米克朗电子有限公司 | Test system and method for testing a circuit breaker |
| CN104569800A (en) * | 2014-12-26 | 2015-04-29 | 江苏国星电器有限公司 | Undervoltage tripper condition monitoring device |
| CN104569800B (en) * | 2014-12-26 | 2017-04-05 | 江苏国星电器有限公司 | Device for under-voltage releasing equipment state monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071003 Termination date: 20110921 |