CN203871875U - Automatic control transformer operation starting and quitting device - Google Patents
Automatic control transformer operation starting and quitting device Download PDFInfo
- Publication number
- CN203871875U CN203871875U CN201420323201.0U CN201420323201U CN203871875U CN 203871875 U CN203871875 U CN 203871875U CN 201420323201 U CN201420323201 U CN 201420323201U CN 203871875 U CN203871875 U CN 203871875U
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- electromagnetic relay
- automatic control
- control transformer
- vacuum switch
- operation starting
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- 230000006698 induction Effects 0.000 claims abstract description 5
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 230000001939 inductive effect Effects 0.000 claims description 3
- 230000005684 electric field Effects 0.000 abstract description 3
- 230000018199 S phase Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
An automatic control transformer operation starting and quitting device relates to the electric field, and aims to solve the problems of large power consumption caused by transformer low load and zero load idle operation; the automatic control transformer operation starting and quitting device comprises a current sensor, a slide resistor, an electromagnetic relay, a vacuum switch and a delay adjusting device; a signal output end of the current sensor is connected with a fixed end of the slide resistor; an adjusting end and a fixed end of the slide resistor are connected with a signal input end of the delay adjusting device; a signal output end of the delay adjusting device is connected with an induction coil of the electromagnetic relay; an induction switch of the electromagnetic relay is connected in series with the vacuum switch. The automatic control transformer operation starting and quitting device is suitable for the electric field.
Description
Technical field
The utility model relates to electric field.
Background technology
Now in modernization city-building, many residential quarters construction scale is large, moves in and has a large population, and power demands is larger, and electric power system is the requirement of the convenient and swift and power supply reliability of operating maintenance, and supply transformer is designed to many parallel operation of transformers.The mechanics of mankind's daily life, makes power load larger variation in 24 hours, and the morning, noon and afternoon load of peak of power consumption is the highest, and other times are lower, there will be especially zero load electricity consumption situation at night.Now transformer is in no-load running state, and no-load loss is larger, wastes energy.
Utility model content
The utility model is in order to solve transformer underload, problem that zero load no-load running energy resource consumption is large, thereby provide, a kind of automatic control transformer drops into, device out of service.
Automatically control transformer input, device out of service, it comprises current inductor 1, swept resistance 2, electromagnetic relay 3, vacuum switch 4 and delay regulating device 5;
The signal output part of current inductor 1 connects a stiff end of swept resistance 2, the adjustable end of swept resistance 2 is connected the signal input part of delay regulating device 5 with a stiff end, the signal output part of described delay regulating device 5 connects the induction coil of electromagnetic relay 3, and the inductive switch of described electromagnetic relay 3 and vacuum switch 4 are connected.
The beneficial effects of the utility model are: the utility model is arranged between inlet wire bus and control transformer, control system is set long-time running transformer load current margin value, in the time that transformer load reaches set point, in current inductor, electric current reaches definite value, control electromagnetic relay by vacuum switch closure, start and need control transformer, load is by two transformer shareds.When many transformers connected in parallel operations, start successively by shunt sequence.In the time that load decline reaches below current margin value, current inductor electric current declines, and electromagnetic relay disconnects vacuum switch, and load is born by long-time running transformer.For avoiding electromagnetic relay frequent starting vacuum switch, shorten its useful life, in control loop, set up delay regulating device, load current drops to below rated current boundary value, and this device started, disconnected corresponding transformer stable operation a period of time, made transformer underload, zero load no-load running energy resource consumption reduce on year-on-year basis 20%.
Brief description of the drawings
Fig. 1 is that automatic control transformer drops into, the overall structure figure of device out of service;
Fig. 2 is that automatic control transformer drops into, the installation site figure of device out of service.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1, automatic control transformer described in present embodiment drops into, device out of service, and it comprises current inductor 1, swept resistance 2, electromagnetic relay 3, vacuum switch 4 and delay regulating device 5;
The signal output part of current inductor 1 connects a stiff end of swept resistance 2, the adjustable end of swept resistance 2 is connected the signal input part of delay regulating device 5 with a stiff end, the signal output part of described delay regulating device 5 connects the induction coil of electromagnetic relay 3, and the inductive switch of described electromagnetic relay 3 and vacuum switch 4 are connected.
In present embodiment, as shown in Figure 2, for 2 and above transformer change platform or switchgear house that paired running is installed, one director's phase operating transformer is set, this device is arranged on to inlet wire bus and needs between control transformer, current inductor 1 is arranged on any one wire, it is that 70% of long-time running transformer rated load is set that swept resistance 2 is set current margin value numerical value, and the current value of received current inductor transmission, when higher or lower than set electric current time, current inductor control electromagnetic relay divides, closes vacuum switch 4.
Current inductor 1 Real-Time Monitoring current in wire changes, and the electric current measuring is passed to electromagnetic relay 2 by current inductor.When electric current higher than control system set current margin value time, electromagnetic relay start, by vacuum switch 4 closures, start control transformer, load by two transformer shareds.When many transformers connected in parallel, start successively by shunt sequence.
When load current lower than control system set current margin value time, electromagnetic relay disconnects vacuum switch 4, load born by long-time running transformer.
For avoiding mechanical device frequent starting vacuum switch, shorten its useful life, in control loop, set up delay regulating device 5, when load current lower than control system set current margin value time, delay function, by setting delay time control electromagnetic relay opening time, to ensure that load current is after plateau, disconnects vacuum switch, avoid load fluctuation frequently to divide, close vacuum switch, reduce service life.
Embodiment two: present embodiment is further qualified the automatic control transformer input described in embodiment one, device out of service, and in present embodiment, current inductor 1 gathers the electric current of a phase in three phase mains.
Claims (2)
1. automatic control transformer input, device out of service, is characterized in that: it comprises current inductor (1), swept resistance (2), electromagnetic relay (3), vacuum switch (4) and delay regulating device (5);
The signal output part of current inductor (1) connects a stiff end of swept resistance (2), the adjustable end of swept resistance (2) is connected the signal input part of delay regulating device (5) with a stiff end, the signal output part of described delay regulating device (5) connects the induction coil of electromagnetic relay (3), the inductive switch of described electromagnetic relay (3) and vacuum switch (4) series connection.
2. automatic control transformer input according to claim 1, device out of service, is characterized in that: current inductor (1) gathers the electric current of a phase in three phase mains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420323201.0U CN203871875U (en) | 2014-06-17 | 2014-06-17 | Automatic control transformer operation starting and quitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420323201.0U CN203871875U (en) | 2014-06-17 | 2014-06-17 | Automatic control transformer operation starting and quitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203871875U true CN203871875U (en) | 2014-10-08 |
Family
ID=51652797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420323201.0U Expired - Fee Related CN203871875U (en) | 2014-06-17 | 2014-06-17 | Automatic control transformer operation starting and quitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203871875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009498A (en) * | 2014-06-17 | 2014-08-27 | 国家电网公司 | Device for automatically controlling transformer to be put into and quit operation |
-
2014
- 2014-06-17 CN CN201420323201.0U patent/CN203871875U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009498A (en) * | 2014-06-17 | 2014-08-27 | 国家电网公司 | Device for automatically controlling transformer to be put into and quit operation |
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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: 20141008 Termination date: 20180617 |