CN202585275U - Novel secondary control circuit of permanent magnet structure - Google Patents
Novel secondary control circuit of permanent magnet structure Download PDFInfo
- Publication number
- CN202585275U CN202585275U CN 201220215852 CN201220215852U CN202585275U CN 202585275 U CN202585275 U CN 202585275U CN 201220215852 CN201220215852 CN 201220215852 CN 201220215852 U CN201220215852 U CN 201220215852U CN 202585275 U CN202585275 U CN 202585275U
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- capacitor
- secondary control
- direct current
- power source
- switching value
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Abstract
The utility model relates to a novel secondary control circuit of a permanent magnet structure. The novel secondary control circuit comprises a secondary control module arranged in a case, a divide-shut brake coil, an indication lamp, a control power source and a binding post, wherein the secondary control module is connected with a capacitor through an installation device, a control input end of the secondary control module is connected with the control power source, and a control output end of the secondary control module is connected with the indicating lamp. The installation device comprises a direct current undervoltage switching value transmitter which is in parallel connection with the capacitor. The capacitor is connected with a direct current power source for a station through a normally-open contact of a direct-current voltage type relay, and is connected with an alternating current power source through a normally-closed contact of the direct-current voltage type relay. The novel secondary control circuit of the permanent magnet structure has the advantages that the novel secondary control circuit is reasonable in design and high in feasibility; an YDD can display voltage at two ends of the capacitor, gives out alarming signals when the capacitor powers down, and disconnects a divide-shut brake circuit of a circuit breaker; and a dispatching ends controls switching contacts of ZJ to enable the capacitor to perform charging through the alternating current power source and the direct current power source, and reliability of power supply is improved.
Description
Technical field
The utility model relates to a kind of secondary control loop of electric equipment, especially a kind of secondary control loop of novel permanent magnetic structure.
Background technology
At present, the circuit breaker secondary control loop of Medium voltage switch or circuit breaker industry is made up of secondary control module, indicator light, control power supply, accumulation power supply and binding post etc., and accumulation power supply is evanescence for a certain reason; And its air switch is not thrown, and circuit breaker can not normal deciliter, and the circuit breaker auxiliary contact can not in time cut off the divide-shut brake electric current; Cause the tank voltage of capacitor to exhaust very soon; Switch can not be accomplished at least once the circulation of " oco ", and dispatching terminal can't be learnt the accumulation power supply dead electricity, if circuit broke down and will cause comparatively serious consequence this moment; For example circuit breaker is according to moving; The protection overstep tripping, thus the accident that makes further enlarges, and can occur the phenomenon that the divide-shut brake contactor is burnt because of long-time cocurrent flow when serious.
The utility model content
The purpose of the utility model is: the problem to above-mentioned prior art exists proposes a kind of compact conformation, the secondary control loop of the novel permanent magnetic structure that feasibility is high.
In order to reach above purpose, the secondary control loop of the novel permanent magnetic structure of the utility model comprises the secondary control module, divide-shut brake coil, indicator light, control power supply and the binding post that are arranged in the cabinet; Its improvements are; Said secondary control module is connected with capacitor through erecting device, and its control input end is connected with the control power supply, and the control output end is connected with indicator light; Said erecting device comprises the under-voltage switching value transmitter of direct current YDD; Said direct current is under-voltage, and switching value transmitter YDD is parallelly connected with capacitor, and said capacitor is through the normal opened contact ZJ1 of direct current die mould relay ZJ, and ZJ3 is connected with DC power supply with the station; Capacitor is through the normally closed contact ZJ2 of direct current die mould relay ZJ, and ZJ4 is connected with AC power.
It is between said capacitor and the AC power rectification module to be set that the utility model further improves.
Further perfect of the utility model is; The normal opened contact YDD1 of the under-voltage switching value transmitter of series direct current YDD in the negative circuit in said loop; Said capacitor and direct current are under-voltage to be provided with the normally closed contact YDD2 of the under-voltage switching value transmitter of direct current between the switching value transmitter YDD, YDD2 is connected with the control input end of dispatching terminal.
The utility model further improves again, and an end of said capacitor is parallelly connected with capacitor discharge switch SB and discharge resistance, and an end of said direct current die mould relay is provided with current-limiting resistance.
The advantage of the utility model is: the secondary control loop of the novel permanent magnetic structure of the utility model is reasonable in design; Feasibility is high; Direct current is under-voltage, and the switching value transmitter can correctly show the voltage at capacitor two ends, and be provided with capacitor not energy storage warning contact when the capacitor power down, send alarm signal so that shutdown device divide-shut brake loop; The normally closed contact and the normal opened contact of dispatching terminal control switching dc voltage type relay make capacitor can adopt AC and DC two cover power source charges, have increased the reliability of capacitor power supply.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the schematic diagram of the utility model embodiment one.
Fig. 2 is the solenoid and the tank circuit figure of the utility model.
Embodiment
Embodiment one
The secondary control loop of the novel permanent magnetic structure of present embodiment; Comprise the secondary control module, divide-shut brake coil, indicator light, control power supply and the binding post that are arranged in the cabinet; Wherein the secondary control module is installed in the metal solder mechanism through erecting device; And be connected with capacitor, its control input end is connected with the control power supply, and the control output end is connected with indicator light; Erecting device comprises rectification module, capacitor discharge switch SB, discharge resistance R1, solenoid, current-limiting resistance and the under-voltage switching value transmitter of direct current YDD; Wherein the under-voltage switching value transmitter of direct current YDD is parallelly connected with capacitor; Direct current is under-voltage, and switching value transmitter YDD has functions such as dc voltage measurement, demonstration and the output of direct current undervoltage alarm; Capacitor is the capacitor C 1 and the C2 of two parallel connections, and capacitor is through the normal opened contact ZJ1 of direct current die mould relay ZJ, and ZJ3 is connected with DC power supply with the station; Capacitor also passes through the normally closed contact ZJ2 of direct current die mould relay ZJ; ZJ4 is connected with AC power, and the rectification module (see figure 2) is set between capacitor and the AC power, and ZJ is connected with the control output end of dispatching terminal; At capacitor not under the situation of energy storage; When perhaps capacitor discharge switch SB is in " closing " state; For preventing that the divide-shut brake contactor from burning; The normal opened contact YDD1 (see figure 1) of the under-voltage switching value transmitter of series direct current YDD in the negative circuit of control loop, capacitor and direct current are under-voltage to be provided with the normally closed contact YDD2 of the under-voltage switching value transmitter of direct current between the switching value transmitter YDD, and YDD2 is connected with the control input end of dispatching terminal.An end of capacitor is parallelly connected with capacitor discharge switch SB and discharge resistance in addition, and the end of direct current die mould relay ZJ is provided with current-limiting resistance.
During execute-in-place, accumulation power supply is dead electricity for some reason, when the voltage at capacitor two ends when 185V is above, YDD1 is closed; When voltage across capacitor was not enough, YDD2 sent not energy storage signal of capacitor to dispatching terminal, makes dispatching terminal can in time learn field condition, so that the staff takes measures necessary.In addition, during normal condition, the normal opened contact ZJ1 of ZJ and ZJ3 are closed, and capacitor is charged with DC power supply by the station; When station during with the tripping operation of the air switch failover of DC power supply, the normally closed contact ZJ2 of ZJ and ZJ4 are closed, and the output current of AC power to the capacitor charging, has been realized two automatic switchovers of overlapping between the power supplys through switching ZJ like this after the rectification module rectification.
Except that the foregoing description, the utility model also can have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, drop on the protection range of the utility model requirement.
Claims (4)
1. the secondary control loop of a novel permanent magnetic structure; Comprise the secondary control module, divide-shut brake coil, indicator light, control power supply and the binding post that are arranged in the cabinet; It is characterized in that: said secondary control module is connected with capacitor through erecting device, and its control input end is connected with the control power supply, and the control output end is connected with indicator light; Said erecting device comprises the under-voltage switching value transmitter of direct current YDD; Said direct current is under-voltage, and switching value transmitter YDD is parallelly connected with capacitor, and said capacitor is through the normal opened contact ZJ1 of direct current die mould relay ZJ, and ZJ3 is connected with DC power supply with the station; Capacitor is through the normally closed contact ZJ2 of direct current die mould relay ZJ, and ZJ4 is connected with AC power.
2. the secondary control loop of novel permanent magnetic structure according to claim 1 is characterized in that: between said capacitor and the AC power rectification module is set.
3. the secondary control loop of novel permanent magnetic structure according to claim 1; It is characterized in that: the normal opened contact YDD1 of the under-voltage switching value transmitter of series direct current YDD in the negative circuit in said loop; Said capacitor and direct current are under-voltage to be provided with the normally closed contact YDD2 of the under-voltage switching value transmitter of direct current between the switching value transmitter YDD, YDD2 is connected with the control input end of dispatching terminal.
4. the secondary control loop of novel permanent magnetic structure according to claim 1 is characterized in that: an end of said capacitor is parallelly connected with capacitor discharge switch SB and discharge resistance, and an end of said direct current die mould relay is provided with current-limiting resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220215852 CN202585275U (en) | 2012-05-14 | 2012-05-14 | Novel secondary control circuit of permanent magnet structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220215852 CN202585275U (en) | 2012-05-14 | 2012-05-14 | Novel secondary control circuit of permanent magnet structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202585275U true CN202585275U (en) | 2012-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220215852 Expired - Fee Related CN202585275U (en) | 2012-05-14 | 2012-05-14 | Novel secondary control circuit of permanent magnet structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202585275U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183431A (en) * | 2014-09-11 | 2014-12-03 | 国家电网公司 | Contact switching device for intelligent distribution network circuit breaker |
| CN104868584A (en) * | 2015-05-05 | 2015-08-26 | 中国南方电网有限责任公司超高压输电公司梧州局 | Seamless automatic switching device for DC power supply |
-
2012
- 2012-05-14 CN CN 201220215852 patent/CN202585275U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183431A (en) * | 2014-09-11 | 2014-12-03 | 国家电网公司 | Contact switching device for intelligent distribution network circuit breaker |
| CN104183431B (en) * | 2014-09-11 | 2016-02-24 | 国家电网公司 | Intelligent network distribution circuit breaker contact conversion equipment |
| CN104868584A (en) * | 2015-05-05 | 2015-08-26 | 中国南方电网有限责任公司超高压输电公司梧州局 | Seamless automatic switching device for DC power supply |
| CN104868584B (en) * | 2015-05-05 | 2017-07-18 | 中国南方电网有限责任公司超高压输电公司梧州局 | A kind of seamless automatic switching control equipment of dc source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20160514 |