CN203098342U - Control device of cooling fan of generator circuit breaker - Google Patents
Control device of cooling fan of generator circuit breaker Download PDFInfo
- Publication number
- CN203098342U CN203098342U CN2012207475277U CN201220747527U CN203098342U CN 203098342 U CN203098342 U CN 203098342U CN 2012207475277 U CN2012207475277 U CN 2012207475277U CN 201220747527 U CN201220747527 U CN 201220747527U CN 203098342 U CN203098342 U CN 203098342U
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- cooling fan
- circuit breaker
- control loop
- control system
- generator
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Abstract
The utility model relates to a control device of a cooling fan of a generator circuit breaker. The control device of the cooling fan of the generator circuit breaker is characterized by comprising a main control circuit (1), an auxiliary control circuit (2) and a distributed control system sampling circuit (3). The control device of the cooling fan of the generator circuit breaker is characterized in that the main control circuit (1) is in parallel connection with two ends of the auxiliary control circuit (2). One end of the main control circuit (1) is connected with the output end of an air switch and the other end of the main control circuit (1) is connected with a null line of a power source. The input end of the air switch is connected with a firing line of the power source. The output end of the distributed control system sampling circuit (3) is connected with the input end of the auxiliary control circuit (2). According to the control device of the cooling fan of the generator circuit breaker, due to the fact that a thermotechnical module contactor controlled by a distributed control system is in series connection with the auxiliary control circuit, electric current at each phase of machine ends of a generator is sampled through the distributed control system and connection and disconnection of a thermotechnical module are controlled. Therefore, connection or disconnection of the cooling fan of the main control circuit can be achieved intelligently and the control device of the cooling fan of the generator circuit breaker has the advantages of being simple in structure, good in tightness and capable of preventing dust from entering the inner portion of the generator circuit breaker and reducing workload of maintenance of equipment.
Description
Technical field
The utility model relates to a kind of controlling method of cooling fan, particularly relates to a kind of control gear of generator outlet circuit breaker cooling fan.The control technique field that belongs to the power generating equipment cooling mechanism.
Background technique
At present, the dynamo-electric factory of large-scale combustion belongs to new type enterprise in China, do not have mature experience for its design, installation, the design and installation of a lot of accessorys all is to carry out with reference to traditional coal-burning power plant, and wherein the cooling fan control mode of generator outlet circuit breaker has just directly adopted the design of coal-burning power plant.Most of coal-burning power plants main electrical scheme is not installed the generator outlet circuit breaker, minority is equipped with the power plant of generator outlet circuit breaker, generally adopt cooling fan forced service mode, it is generator outlet circuit breaker one combined floodgate, its cooling fan puts into operation at once, and there is following shortcoming in this method of operation: power consumption is big; The working life of cooling fan is short; The suction port filtering surface is changed frequent (changing once in average every month); Generator outlet circuit breaker inside is advanced ash easily; The workload of plant maintenance is big.
The model utility content
The purpose of this utility model, be in order to solve the problem that above-mentioned prior art cooling fan power consumption is big, the working life of cooling fan is short, a kind of control gear of generator outlet circuit breaker cooling fan is provided, and that this control gear has is simple in structure, easy to use, the characteristics in energy-conserving and environment-protective, raising cooling fan working life.
The purpose of this utility model can reach by the following technical programs:
The control gear of generator outlet circuit breaker cooling fan, comprise main control loop, subsidiary control loop and decentralized control system sampling circuit, its structural feature is: main control loop is in parallel with the subsidiary control loop two ends, one end is pressed the output terminal of air-break switch, the zero line of another termination power, the live wire of the input termination power of air-break switch; The input end of the output termination subsidiary control loop of decentralized control system sampling circuit.
The purpose of this utility model can also reach by the following technical programs:
Further, described main control loop is made up of cooling fan and auxiliary reclay normally opened contact, and the two ends of cooling fan connect an end of air-break switch output terminal and auxiliary reclay contact, the zero line of another termination power of auxiliary reclay respectively;
Further, described subsidiary control loop is made up of auxiliary reclay coil, generator outlet circuit breaker and thermal technology's module contact, and the coil two ends of auxiliary reclay connect the zero line of power supply and the end that the generator outlet circuit breaker is often driven auxiliary contact respectively; Normally opened contact one end of thermal technology's module is connected to the other end that the generator outlet circuit breaker is often driven auxiliary contact, and the normally opened contact the other end of thermal technology's module links to each other with the input end of air-break switch, the live wire of the input termination power of air-break switch;
Further, described decentralized control system sampling circuit is made up of decentralized control system and thermal technology's module, the input end of decentralized control system input termination subsidiary control loop thermal technology module.
The utlity model has following significant beneficial effect:
1, control gear of the present utility model is owing to be connected in series thermal technology's module contact of being controlled by decentralized control system in subsidiary control loop, electric current by each camera end of decentralized control system sampling generator, control thermal technology module break-make, thereby the cooling fan of main control loop is switched on or switched off, has simple in structure, good airproof performance, can prevent that generator outlet circuit breaker inside from advancing ash, the workload that reduces plant maintenance is big.
2, the utility model is owing to draw the control cabinet of an actuating cable line to generator outlet circuit breaker GCB from the thermal control cabinet of the Centralized Monitoring backstage DCS of power plant, the thermal technology is controlled the control loop that signal DIASYS inserts cooling fan of leaving of TCS, by the Centralized Monitoring backstage DCS of power plant according to the start and stop of machine end Current Control cooling fan; Therefore, can reduce the operating time of cooling fan, reduce power consumption, the working life of director's cooling fan.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is decentralized control system control thermal technology modular structure schematic representation.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail:
Specific embodiment 1:
With reference to Fig. 1, the control gear of the generator outlet circuit breaker cooling fan that the utility model relates to, comprise main control loop 1, subsidiary control loop 2 and decentralized control system sampling circuit 3, it is characterized in that: main control loop 1 is in parallel with subsidiary control loop 2 two ends, one end is pressed the output terminal of air-break switch, the zero line of another termination power, the live wire of the input termination power of air-break switch; The input end of the output termination subsidiary control loop 2 of decentralized control system sampling circuit 3.
Described main control loop 1 is made up of cooling fan and auxiliary reclay normally opened contact, and the two ends of cooling fan connect an end of air-break switch output terminal and auxiliary reclay contact, the zero line of another termination power of auxiliary reclay respectively; Described subsidiary control loop 2 is made up of auxiliary reclay coil, generator outlet circuit breaker and thermal technology's module contact, and the coil two ends of auxiliary reclay connect the zero line of power supply and the end that the generator outlet circuit breaker is often driven auxiliary contact respectively; Normally opened contact one end of thermal technology's module is connected to the other end that the generator outlet circuit breaker is often driven auxiliary contact, and the normally opened contact the other end of thermal technology's module links to each other with the input end of air-break switch, the live wire of the input termination power of air-break switch; Described decentralized control system sampling circuit 3 is made up of decentralized control system 31 and thermal technology's module, the input end of decentralized control system input termination subsidiary control loop thermal technology module.
The controlling method of present embodiment, by the Centralized Monitoring backstage DCS of power plant current sampling signal, finish following action according to this current sampling signal size of current according to generator machine end transmitter:
1) when the sample rate current of arbitrary phase generator end in A, B, the C three-phase during, delayed time 10 seconds, leave the control contact to GCB control cabinet starting electrical machinery outlet breaker cooling fan greater than 12000A;
2) sample rate current of arbitrary phase generator end is kept motor outlet breaker cooling fan normal working between 10000A-12000A in working as A, B, C three-phase;
3) when all reducing to 10000A when three phase generator end electric current in A, B, the C three-phase when following, then this is left the control contact and returns, and motor outlet breaker cooling fan is out of service.
Further, draw the control cabinet of an actuating cable line from the thermal control cabinet of the Centralized Monitoring backstage DCS of power plant to generator outlet circuit breaker GCB, the thermal technology is controlled the control loop that signal DIASYS inserts cooling fan of leaving of TCS, by the Centralized Monitoring backstage DCS of power plant according to the start and stop of machine end Current Control fan.
The working principle of present embodiment is as follows:
As depicted in figs. 1 and 2, when the generator proper functioning, the outlet breaker closure, in auxiliary control circuit, outlet breaker normally opened contact closure, 31 pairs of generator machines of decentralized control system this moment end carries out current sample and calculates, if the electric current of arbitrary phase generator machine end is greater than 12000A, after then delaying time 10 seconds, input control signal is to thermal technology's module input, make thermal technology's module contact closure, just the auxiliary reclay coil of secondary circuit gets.In main control loop, because that the auxiliary reclay coil gets is electric, its normally opened contact closure, this moment, cooling fan got electric startup work, thereby outlet fracture device is cooled off.If machine end electric current can not keep in 10 seconds greater than 12000A, then decentralized control system 31 is not exported control signal, thereby cooling fan is not worked.Thereby reach saving power, the protection environment improves the effect in cooling fan life-span.
The above; it only is the preferable specific embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the scope that the utility model discloses; be equal to replacement or change according to the technical solution of the utility model and model utility design thereof, all belonged to protection domain of the present utility model.
Claims (4)
1. the control gear of generator outlet circuit breaker cooling fan, it is characterized in that: comprise main control loop (1), subsidiary control loop (2) and decentralized control system sampling circuit (3), main control loop (1) is in parallel with subsidiary control loop (2) two ends, the output terminal of one termination air-break switch, the zero line of another termination power, the live wire of the input termination power of air-break switch; The input end of the output termination subsidiary control loop (2) of decentralized control system sampling circuit (3).
2. the control gear of generator outlet circuit breaker cooling fan according to claim 1, it is characterized in that: described main control loop (1) is made up of cooling fan and auxiliary reclay normally opened contact, the two ends of cooling fan connect an end of air-break switch output terminal and auxiliary reclay contact, the zero line of another termination power of auxiliary reclay respectively.
3. the control gear of generator outlet circuit breaker cooling fan according to claim 1, it is characterized in that: described subsidiary control loop (2) is made up of auxiliary reclay coil, generator outlet circuit breaker and thermal technology's module contact, and the coil two ends of auxiliary reclay connect the zero line of power supply and the end that the generator outlet circuit breaker is often driven auxiliary contact respectively; Normally opened contact one end of thermal technology's module is connected to the other end that the generator outlet circuit breaker is often driven auxiliary contact, and the normally opened contact the other end of thermal technology's module links to each other with the input end of air-break switch, the live wire of the input termination power of air-break switch.
4. the control gear of generator outlet circuit breaker cooling fan according to claim 1, it is characterized in that: described decentralized control system sampling circuit (3) is made up of decentralized control system and thermal technology's module, the input end of decentralized control system input termination subsidiary control loop thermal technology module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207475277U CN203098342U (en) | 2012-12-30 | 2012-12-30 | Control device of cooling fan of generator circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207475277U CN203098342U (en) | 2012-12-30 | 2012-12-30 | Control device of cooling fan of generator circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098342U true CN203098342U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207475277U Expired - Fee Related CN203098342U (en) | 2012-12-30 | 2012-12-30 | Control device of cooling fan of generator circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098342U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062090A (en) * | 2012-12-30 | 2013-04-24 | 深圳市广前电力有限公司 | Control method and device for generator circuit-breaker cooling fan |
| CN105626496A (en) * | 2015-12-21 | 2016-06-01 | 中车大连机车车辆有限公司 | Starting air cylinder for locomotive and reuse air compressor of oxygen generator |
| US9629284B2 (en) | 2014-09-29 | 2017-04-18 | International Business Machines Corporation | Interlock assembly for air-moving assembly |
| US9861010B2 (en) | 2014-09-29 | 2018-01-02 | International Business Machines Corporation | Protective louver assembly for air-moving assembly |
| US9907211B2 (en) | 2014-09-29 | 2018-02-27 | International Business Machines Corporation | Locking louver assembly for air-moving assembly |
| US9941041B2 (en) | 2015-04-08 | 2018-04-10 | International Business Machines Corporation | Electromechanical assembly controlled by sensed voltage |
| US10271459B2 (en) | 2014-12-10 | 2019-04-23 | International Business Machines Corporation | Protective cover assembly for air-moving assembly |
-
2012
- 2012-12-30 CN CN2012207475277U patent/CN203098342U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062090A (en) * | 2012-12-30 | 2013-04-24 | 深圳市广前电力有限公司 | Control method and device for generator circuit-breaker cooling fan |
| US11197394B2 (en) | 2014-09-29 | 2021-12-07 | International Business Machines Corporation | Protective louver assembly for air-moving assembly |
| US9629284B2 (en) | 2014-09-29 | 2017-04-18 | International Business Machines Corporation | Interlock assembly for air-moving assembly |
| US9648786B2 (en) | 2014-09-29 | 2017-05-09 | International Business Machines Corporation | Interlock assembly for air-moving assembly |
| US9861010B2 (en) | 2014-09-29 | 2018-01-02 | International Business Machines Corporation | Protective louver assembly for air-moving assembly |
| US9907211B2 (en) | 2014-09-29 | 2018-02-27 | International Business Machines Corporation | Locking louver assembly for air-moving assembly |
| US10299409B2 (en) | 2014-09-29 | 2019-05-21 | International Business Machines Corporation | Protective louver assembly for air-moving assembly |
| US9968006B2 (en) | 2014-09-29 | 2018-05-08 | International Business Machines Corporation | Locking louver assembly for air-moving assembly |
| US10271459B2 (en) | 2014-12-10 | 2019-04-23 | International Business Machines Corporation | Protective cover assembly for air-moving assembly |
| US11147190B2 (en) | 2014-12-10 | 2021-10-12 | International Business Machines Corporation | Protective cover assembly for air-moving assembly |
| US10128032B2 (en) | 2015-04-08 | 2018-11-13 | International Business Machines Corporation | Electromechanical assembly controlled by sensed voltage |
| US9941041B2 (en) | 2015-04-08 | 2018-04-10 | International Business Machines Corporation | Electromechanical assembly controlled by sensed voltage |
| US10600543B2 (en) | 2015-04-08 | 2020-03-24 | International Business Machines Corporation | Electromechanical assembly controlled by sensed voltage |
| CN105626496A (en) * | 2015-12-21 | 2016-06-01 | 中车大连机车车辆有限公司 | Starting air cylinder for locomotive and reuse air compressor of oxygen generator |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20130731 Termination date: 20131230 |