CN103986127A - Incoming cabinet control system - Google Patents
Incoming cabinet control system Download PDFInfo
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- CN103986127A CN103986127A CN201410212715.3A CN201410212715A CN103986127A CN 103986127 A CN103986127 A CN 103986127A CN 201410212715 A CN201410212715 A CN 201410212715A CN 103986127 A CN103986127 A CN 103986127A
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- control system
- time relay
- relay
- circuit
- signal circuit
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Abstract
The invention discloses an incoming cabinet control system. The incoming cabinet control system comprises a tripping signal circuit, a closing signal circuit and an over-current hunting circuit, wherein the tripping signal circuit, the closing signal circuit and the over-current hunting circuit are connected to the two ends of a power source respectively and connected in parallel. The incoming cabinet control system is characterized by further comprising a voltage loss starting circuit and a shunt release energizing circuit which are connected to the two ends of the power source respectively and connected in parallel; the voltage loss starting circuit comprises an alternating current voltage relay and a time relay which are connected in series; the shunt release energizing circuit comprises a time relay control switch, a tripping and closing relay and a shunt release; the time relay control switch is further connected with a first button switch in parallel; the time relay is powered on to control the time relay control switch to be switched on. According to the incoming cabinet control system, the low-voltage protection time of a low voltage switch is prolonged, fault tripping caused by short-time voltage loss of incoming wires is completely eradicated, and reliability of power supply is improved.
Description
Technical field
The present invention be more particularly directed to a kind of incoming line cabinet control system.
Background technology
Low tension switch is usually used in transformer station, and operation personnel can not grasp switch motion situation in time, and as operation reset not in time, automated communication equipment and dispatching patcher will face power outage.Yet because low tension switch under-voltage protection and higher level's circuit overcurrent protection, segmentation are autotomyed and are had a time coordination between protection; if low tension switch under-voltage protection is less than overcurrent protection and the segmentation guard time of autotomying operate time; increase electricity consumption o-volt protection TRIP number of times low tension switch frequent movement, bring operating pressure and intensity to operation personnel.
Summary of the invention
The object of this invention is to provide a kind of incoming line cabinet control system, extend low tension switch under-voltage protection operate time, stopped the inlet wire mistake separating brake that decompression causes in short-term, improved the reliability of power supply.
In order to realize above object, the present invention is achieved by the following technical solutions:
A kind of incoming line cabinet control system, comprise and be connected to both ends of power and trip signal circuit, switching signal circuit and overcurrent exclusive circuit parallel with one another, be characterized in, also comprise: the decompression starting circuit, the shunt release energizing circuit that are connected to both ends of power and connection parallel with one another;
Described decompression starting circuit comprises: alternating voltage relay and the time relay of mutually connecting;
Described shunt release energizing circuit comprises time relay control switch, breaker tripping and closing relay and shunt release;
Described time relay control switch first push-button switch that is also connected in parallel;
It is closed that the described time relay obtains electric control time relay control switch.
The tripping operation Chang Kaiguan that described trip signal circuit comprises mutual series connection and tripping operation indicator light.
The normally closed pass of combined floodgate and combined floodgate indicator light that described switching signal circuit comprises mutual series connection;
It is closed that described breaker tripping and closing relay obtains electric control tripping operation Chang Kaiguan, and control the normally closed pass disconnection of closing a floodgate.
Described power supply is uninterrupted power supply.
The present invention compared with prior art, has the following advantages:
The present invention, owing to having increased the time relay, has stopped the inlet wire mistake separating brake that decompression causes in short-term, has improved the reliability of power supply.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of a kind of incoming line cabinet control system of the present invention.
Embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
As shown in Figure 1, a kind of incoming line cabinet control system, comprises the trip signal circuit, switching signal circuit, overcurrent exclusive circuit, decompression starting circuit, the shunt release energizing circuit that are connected to uninterrupted power supply two ends and connection parallel with one another.
Described decompression starting circuit comprises: alternating voltage relay S1 and the time relay sj of mutually connecting, and in the present embodiment, the model of alternating voltage relay is JY8-12D, the model of the time relay is SSJ8-12B/E; Described shunt release energizing circuit comprises time relay control switch SJ-1, breaker tripping and closing relay K S and shunt release; The described time relay control switch SJ-1 first push-button switch SB-1 that is also connected in parallel; It is closed that described time relay sj obtains electric control time relay control switch SJ-1.
The tripping operation Chang KaiguanK S-1 that described trip signal circuit comprises mutual series connection and tripping operation indicator light GHL; The combined floodgate normally closed pass KS-2 that described switching signal circuit comprises mutual series connection and combined floodgate indicator light VHL; It is closed that breaker tripping and closing relay K S obtains electric control tripping operation Chang KaiguanK S-1, and control the normally closed pass KS-2 disconnection of closing a floodgate.
After inlet wire decompression, the closing of contact of alternating voltage relay S1, time relay sj obtains electric, after time delay 2s, and the control time relay control switch SJ-1 closing of contact, shunt release action, touch outside service entrance switch separating brake, it is closed that the relay K of breaker tripping and closing simultaneously S obtains electric control tripping operation Chang KaiguanK S-1, and the normally closed pass KS-2 of control combined floodgate disconnects, light tripping operation indicator light GHL, extinguish combined floodgate indicator light VHL.
In sum, a kind of incoming line cabinet control system of the present invention, extends low tension switch under-voltage protection operate time, has stopped the inlet wire mistake separating brake that decompression causes in short-term, has improved the reliability of power supply.
Although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.Those skilled in the art, read after foregoing, for multiple modification of the present invention with to substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (4)
1. an incoming line cabinet control system, comprise and be connected to both ends of power and trip signal circuit, switching signal circuit and overcurrent exclusive circuit parallel with one another, it is characterized in that, also comprise: the decompression starting circuit, the shunt release energizing circuit that are connected to both ends of power and connection parallel with one another;
Described decompression starting circuit comprises: alternating voltage relay (S1) and the time relay (SJ) of mutually connecting;
Described shunt release energizing circuit comprises time relay control switch (SJ-1), breaker tripping and closing relay (KS) and shunt release;
Described time relay control switch (SJ-1) the first push-button switch (SB-1) that is also connected in parallel;
The described time relay (SJ) obtains electric control time relay control switch (SJ-1) closure.
2. incoming line cabinet control system as claimed in claim 1, is characterized in that, the tripping operation Chang Kaiguan (KS-1) that described trip signal circuit comprises mutual series connection and tripping operation indicator light (GHL).
3. incoming line cabinet control system as claimed in claim 2, is characterized in that, the normally closed pass of combined floodgate (KS-2) that described switching signal circuit comprises mutual series connection and combined floodgate indicator light (VHL);
Described breaker tripping and closing relay (KS) obtains electric control tripping operation Chang Kaiguan (KS-1) closure, and controls normally closed pass (KS-2) disconnection of closing a floodgate.
4. incoming line cabinet control system as claimed in claim 1, is characterized in that, described power supply is uninterrupted power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212715.3A CN103986127A (en) | 2014-05-20 | 2014-05-20 | Incoming cabinet control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212715.3A CN103986127A (en) | 2014-05-20 | 2014-05-20 | Incoming cabinet control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103986127A true CN103986127A (en) | 2014-08-13 |
Family
ID=51277995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410212715.3A Pending CN103986127A (en) | 2014-05-20 | 2014-05-20 | Incoming cabinet control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103986127A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2230060Y (en) * | 1995-06-22 | 1996-06-26 | 吴震宇 | Protective arrangement for neutral wire for disconnection |
| KR20020034760A (en) * | 2000-11-03 | 2002-05-09 | 삼화이오씨알 주식회사 | Υ-δ contactor |
| CN202503266U (en) * | 2012-01-07 | 2012-10-24 | 王天玉 | Motor voltage loss restarting device |
| CN203071647U (en) * | 2013-01-22 | 2013-07-17 | 锦州华信开关电器有限责任公司 | Low-voltage switch cabinet automatic input and recovery device |
| CN203911453U (en) * | 2014-05-20 | 2014-10-29 | 国网上海市电力公司 | An inlet wire cabinet control system |
-
2014
- 2014-05-20 CN CN201410212715.3A patent/CN103986127A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2230060Y (en) * | 1995-06-22 | 1996-06-26 | 吴震宇 | Protective arrangement for neutral wire for disconnection |
| KR20020034760A (en) * | 2000-11-03 | 2002-05-09 | 삼화이오씨알 주식회사 | Υ-δ contactor |
| CN202503266U (en) * | 2012-01-07 | 2012-10-24 | 王天玉 | Motor voltage loss restarting device |
| CN203071647U (en) * | 2013-01-22 | 2013-07-17 | 锦州华信开关电器有限责任公司 | Low-voltage switch cabinet automatic input and recovery device |
| CN203911453U (en) * | 2014-05-20 | 2014-10-29 | 国网上海市电力公司 | An inlet wire cabinet control system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140813 |
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| RJ01 | Rejection of invention patent application after publication |