CN203911453U - An inlet wire cabinet control system - Google Patents
An inlet wire cabinet control system Download PDFInfo
- Publication number
- CN203911453U CN203911453U CN201420257960.1U CN201420257960U CN203911453U CN 203911453 U CN203911453 U CN 203911453U CN 201420257960 U CN201420257960 U CN 201420257960U CN 203911453 U CN203911453 U CN 203911453U
- Authority
- CN
- China
- Prior art keywords
- time relay
- control system
- relay
- inlet wire
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000006837 decompression Effects 0.000 claims description 10
- 230000005611 electricity Effects 0.000 abstract description 2
- 230000005284 excitation Effects 0.000 abstract 2
- 230000011218 segmentation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
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- Keying Circuit Devices (AREA)
Abstract
The utility model discloses an inlet wire cabinet control system comprising a trip-out signal circuit, a closing signal circuit and an over-current locking circuit which are separately connected to the two ends of a power supply and which are mutually in parallel connection. The inlet wire cabinet control system is characterized in that the inlet wire cabinet control system also includes a voltage-losing starting circuit and a shunt electrical apparatus release excitation circuit which are separately connected to the two ends of the power supply and which are mutually in parallel connection; the voltage-losing starting circuit comprises an alternating current voltage relay and a time relay which are mutually in serial connection; the shunt electrical apparatus release excitation circuit includes a time relay control switch, a tripping and closing relay and an shunt electrical apparatus release; the time relay control switch is also in parallel connection with a first button switch; and the time relay control switch is also in parallel connection with a first button switch; and the time relay gains electricity to control closing of the time relay control switch. The inlet wire cabinet control system of the utility model prolongs time of an under-voltage protection motion of a low voltage switch so as to put an end to incorrect opening due to inlet wire short time voltage-losing and raise reliability of power supplying.
Description
Technical field
The utility model is particularly related 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 operated not in time reset, automated communication equipment and dispatching patcher will face power outage.But because low tension switch under-voltage protection and higher level's circuit overcurrent protection, segmentation are autotomyed and 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.
Utility model content
The purpose of this utility model is to provide a kind of incoming line cabinet control system, 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.
In order to realize above object, the utility model is achieved through 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 series connection mutually;
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;
The described time relay obtains electric control time relay control switch closure.
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;
Described breaker tripping and closing relay obtains electric control tripping operation Chang Kaiguan closure, and controls the normally closed pass disconnection of closing a floodgate.
Described power supply is uninterrupted power supply.
The utility model compared with prior art, has the following advantages:
The utility model, owing to having increased the time relay, has been stopped the inlet wire mistake separating brake that decompression causes in short-term, has improved the reliability of power supply.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of a kind of incoming line cabinet control system of the utility model.
Embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the utility model 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 series connection mutually, 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; Described time relay sj obtains electric control time relay control switch SJ-1 closure.
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; Breaker tripping and closing relay K S obtains electric control tripping operation Chang KaiguanK S-1 closure, and controls the normally closed pass KS-2 disconnection of closing a floodgate.
When 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, the relay K of breaker tripping and closing simultaneously S obtains electric control tripping operation Chang KaiguanK S-1 closure, and controls the normally closed pass KS-2 disconnection of closing a floodgate, light tripping operation indicator light GHL, extinguish combined floodgate indicator light VHL.
In sum, a kind of incoming line cabinet control system of the utility model, 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 utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.Read after foregoing those skilled in the art, for multiple amendment of the present utility model and substitute will be all apparent.Therefore, protection range of the present utility model 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 series connection mutually;
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 |
|---|---|---|---|
| CN201420257960.1U CN203911453U (en) | 2014-05-20 | 2014-05-20 | An inlet wire cabinet control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420257960.1U CN203911453U (en) | 2014-05-20 | 2014-05-20 | An inlet wire cabinet control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203911453U true CN203911453U (en) | 2014-10-29 |
Family
ID=51785699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420257960.1U Expired - Lifetime CN203911453U (en) | 2014-05-20 | 2014-05-20 | An inlet wire cabinet control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203911453U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103986127A (en) * | 2014-05-20 | 2014-08-13 | 国网上海市电力公司 | Incoming cabinet control system |
| CN105371446A (en) * | 2015-12-11 | 2016-03-02 | 天津市威匡电气设备有限公司 | CPS (Control and Protective Switching Device) based control system for air conditioner |
-
2014
- 2014-05-20 CN CN201420257960.1U patent/CN203911453U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103986127A (en) * | 2014-05-20 | 2014-08-13 | 国网上海市电力公司 | Incoming cabinet control system |
| CN105371446A (en) * | 2015-12-11 | 2016-03-02 | 天津市威匡电气设备有限公司 | CPS (Control and Protective Switching Device) based control system for air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |