CN205827210U - A kind of transformer cooler oil pump manually boots loop - Google Patents
A kind of transformer cooler oil pump manually boots loop Download PDFInfo
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- CN205827210U CN205827210U CN201620696819.0U CN201620696819U CN205827210U CN 205827210 U CN205827210 U CN 205827210U CN 201620696819 U CN201620696819 U CN 201620696819U CN 205827210 U CN205827210 U CN 205827210U
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- oil pump
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- plc
- transformer cooler
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Abstract
This utility model provides a kind of transformer cooler oil pump to manually boot loop, including PLC starting-up later time, one end of described PLC starting-up later time connects PLC, the other end of described PLC starting-up later time connects has Oil pump electrical machinery to control loop, and described PLC starting-up later time has been arranged in parallel manual control circuit.One end of described manual control circuit is arranged at PLC, the other end is arranged at Oil pump electrical machinery and controls loop, it is in open-circuit condition, described manual control circuit is provided with shift knob, described shift knob includes base, described base upper end is provided with housing, and the both sides of described housing are provided with wire incoming end and wire terminals, and the upper end of described housing is provided with control handle.Transformer cooler oil pump described in the utility model manually boots loop, is run by direct for control handle control oil pump, and coordinates other artificial measureses, it is ensured that main transformer cooler can be properly functioning under its control core PLC failure condition.
Description
Technical field
This utility model relates to transformer manufacture technology, particularly relates to a kind of transformer cooler oil pump and manually boots back
Road.
Background technology
In recent years, main transformer cooler system, as the important auxiliary equipment of transformator, is ensureing that main transformer safety, economical operation rise
Important effect.Main transformer can be divided into according to main transformer type of cooling difference: oil, oil, dry type air cooling, strong
Oil circulation oil circulation water-cooling air-cooled, strong.
Existing main transformer cooler uses strong oil circulation water-cooling but method mainly to be programmed to control main transformer cooler by PLC
Automatically, manually, auxiliary and the operation of standby mode and switching.
About the regulation of chiller in DL/T572-2010 power transformer operating standard: the most oil circulation cooling system
Must there be two independent working powers and can automatically and manually switch.When working power breaks down, sound equipment, lamp should be sent
The alarm signals such as light.Strong oil circulation transformator, should send the alarm signal such as sound equipment, light, and oneself when excising fault cooler
Dynamic (water-cooled can be manually) puts into standby cooler；To there being the transformator of two or more sets cooling systems, should possess packet automatically and prolong
Shi Qiting function.The conjunction of power plant transformator Generator Outlet Switchgear, disconnected should interlock with generator main cooler, i.e. when
After motor its gate out switch grid-connected is incorporated into, grid-connected unit Main Transformer Cooler should automatically engage, when its outlet of electromotor off-the-line
After switching off, cooler should be automatically stopped.Strong oil circulation transformator, is in operation, when cooling system breaks down excision entirely
During portion's cooler, transformator at rated loads allow run not less than 20min.When oil surface temperature not yet reaches 75 DEG C,
Allow to rise to 75 DEG C, but the longest run time of cooler full cut-off must not exceed 1h.
In about the 10 years service life of existing main transformer cooler, any control instruction can not be exported when PLC damages, its institute
Control equipment will be paralysed.The strong oil circulation cooler oil pump of main transformer is automatic, manually boot and cooler water inlet electrodynamic valve leaves
Open and controlled by the output of PLC logic, when PLC cisco unity malfunction, main transformer cooler oil pump hands, automatically all cannot start, general
Cause the main transformer run to lack cooling system, affect safe operation and the power supply reliability of main transformer.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of transformer cooler oil pump and manually boots loop.
For solving above-mentioned technical problem, embodiment of the present utility model provides a kind of transformer cooler oil pump to manually boot
Loop, including PLC starting-up later time, one end of described PLC starting-up later time connects PLC, described PLC starting-up later time another
One end connects has Oil pump electrical machinery to control loop, and described PLC starting-up later time has been arranged in parallel manual control circuit.
Wherein, one end of described manual control circuit is arranged at PLC, and the other end is arranged at Oil pump electrical machinery and controls back
Road, is in open-circuit condition.
Wherein, being provided with shift knob in described manual control circuit, described shift knob includes base, on described base
End is provided with housing, and the both sides of described housing are provided with wire incoming end and wire terminals, and the upper end of described housing is provided with
Control handle.
Wherein, described base is arranged to the shape of middle jack-up, and described housing is fixed on the centre position of base.
Wherein, described enclosure interior is provided with the connection sheet for turning on wire incoming end and wire terminals, described company
The centre of contact pin is provided with spring, and control handle is fixed in the upper end of described spring.
Wherein, described connection sheet is arranged at the top of wire incoming end and wire terminals, can be upper and lower relative to housing
Slide.
Having the beneficial effect that of technique scheme of the present utility model:
In such scheme, prior art excessively relies on PLC logical order to control the opening of main transformer cooler, to stop, when PLC sends out
During raw fault, will cause main transformer cooler cannot automatically, manually boot, main transformer is by forced outage.The present invention combines the advantage of PLC
And considering that it is not enough: when PLC is normal, the logical order opening, stopping being preset by PLC of oil pump is controlled, when the oil pump method of operation
When switching handle is switched to manual position, directly initiates oil pump and open cooling water water inlet electrodynamic valve by PLC logical order；PLC event
During barrier, PLC cannot output control instruction, disconnects PLC working power, oil pump method of operation switching handle is switched to manual position, oil
Pump operation main transformer oil is circulated, and valve opened by operating cooler water intaking valve handwheel, it is achieved purely manual startup cooler, it is ensured that main
Become safe operation.The present invention predominantly improves main transformer cooler and manually boots oil pump loop, by direct for control handle control oil pump
Run, and coordinate other artificial measureses, it is ensured that main transformer cooler can be properly functioning under its control core PLC failure condition.
Accompanying drawing explanation
Fig. 1 is that the cooler of this utility model embodiment controls loop feature schematic diagram；
Fig. 2 is the principle schematic of this utility model embodiment；
Fig. 3 is the switch button structure schematic diagram of the manual control circuit of this utility model embodiment.
[main element symbol description]
1, PLC starting-up later time；
2, Oil pump electrical machinery controls loop；
3, manual control circuit；
31, base；
32, housing；
33, wire incoming end；
34, wire terminals；
35, control handle.
Detailed description of the invention
For making the technical problems to be solved in the utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And specific embodiment is described in detail.
This utility model is not normally functioning under its control core PLC failure condition for existing main transformer cooler
Problem, it is provided that a kind of transformer cooler oil pump manually boots loop.
As shown in Figure 1 to Figure 3, embodiment one transformer cooler oil pump of the present utility model manually boots loop, bag
Including PLC starting-up later time 1, one end of described PLC starting-up later time 1 connects PLC, the other end of described PLC starting-up later time 1
Connect and have Oil pump electrical machinery to control loop 2, described PLC starting-up later time 1 has been arranged in parallel manual control circuit 3.
Wherein, one end of described manual control circuit 3 is arranged at PLC, and the other end is arranged at Oil pump electrical machinery control
Loop 2, is in open-circuit condition.
Wherein, being provided with shift knob in described manual control circuit 3, described shift knob includes base 31, the described end
Seat 31 upper ends are provided with housing 32, and the both sides of described housing 32 are provided with wire incoming end 33 and wire terminals 34, described shell
The upper end of body 32 is provided with control handle 35.
Wherein, described base 31 is arranged to the shape of middle jack-up, and described housing 32 is fixed on the centre position of base 31.
Wherein, described housing 32 is internally provided with the connection sheet for turning on wire incoming end 33 and wire terminals 34,
The centre of described connection sheet is provided with spring, and control handle 35 is fixed in the upper end of described spring.
Wherein, described connection sheet is arranged at wire incoming end 33 and the top of wire terminals 34, can be relative to housing
32 slide up and down.
Use process of the present utility model is as described below:
When being not normally functioning under control core PLC failure condition, operator can be by pressing control handle 35, this
Time control handle 35 drive spring and connect sheet move downward so that connect sheet effect under, wire incoming end 33 and wire
Exit 34 turns on, and this is to unclamp control handle 35, and control handle 35 can maintain the invariant position being equivalent to housing 32, this
Time spring be in compressive state so that wire incoming end 33 and wire terminals 34 are in close contact.
When needs disconnect manual control circuit 3, operator pull up control handle 35, and control handle 35 is relative to housing
32 move upward, and the band sheet that is dynamically connected moves upward under the action of the spring so that wire incoming end 33 and wire terminals 34 points
From, this completes conducting and the opening operation of manual control circuit 3.
The above is preferred implementation of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of without departing from principle described in the utility model, it is also possible to make some improvements and modifications, these improve
Also protection domain of the present utility model is should be regarded as with retouching.
Claims (5)
1. transformer cooler oil pump manually boots a loop, including PLC starting-up later time, it is characterised in that described PLC starts
The one end in loop connects PLC, and the other end of described PLC starting-up later time connects has Oil pump electrical machinery to control loop, described
It has been arranged in parallel manual control circuit on PLC starting-up later time；
Wherein, one end of described manual control circuit is arranged at PLC, and the other end is arranged at Oil pump electrical machinery and controls loop.
Transformer cooler oil pump the most according to claim 1 manually boots loop, it is characterised in that described Non-follow control
Being provided with shift knob in loop, described shift knob includes that base, described base upper end are provided with housing, the two of described housing
Side is provided with wire incoming end and wire terminals, and the upper end of described housing is provided with control handle.
Transformer cooler oil pump the most according to claim 2 manually boots loop, it is characterised in that described base is arranged
The shape of jack-up in the middle of becoming, described housing is fixed on the centre position of base.
Transformer cooler oil pump the most according to claim 2 manually boots loop, it is characterised in that described enclosure interior
Being provided with the connection sheet for turning on wire incoming end and wire terminals, the centre of described connection sheet is provided with spring, described
Control handle is fixed in the upper end of spring.
Transformer cooler oil pump the most according to claim 4 manually boots loop, it is characterised in that described connection sheet sets
It is placed in the top of wire incoming end and wire terminals, can slide up and down relative to housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620696819.0U CN205827210U (en) | 2016-07-01 | 2016-07-01 | A kind of transformer cooler oil pump manually boots loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620696819.0U CN205827210U (en) | 2016-07-01 | 2016-07-01 | A kind of transformer cooler oil pump manually boots loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205827210U true CN205827210U (en) | 2016-12-21 |
Family
ID=57563893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620696819.0U Active CN205827210U (en) | 2016-07-01 | 2016-07-01 | A kind of transformer cooler oil pump manually boots loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205827210U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107168287A (en) * | 2017-05-26 | 2017-09-15 | 中国南方电网有限责任公司超高压输电公司贵阳局 | A kind of PLC failures based on PLC transformer cooler control systems are met an urgent need module |
| CN108873962A (en) * | 2018-09-13 | 2018-11-23 | 深圳市广前电力有限公司 | For controlling the power-economizing method of GTCC power plant Main Transformer Cooler |
-
2016
- 2016-07-01 CN CN201620696819.0U patent/CN205827210U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107168287A (en) * | 2017-05-26 | 2017-09-15 | 中国南方电网有限责任公司超高压输电公司贵阳局 | A kind of PLC failures based on PLC transformer cooler control systems are met an urgent need module |
| CN108873962A (en) * | 2018-09-13 | 2018-11-23 | 深圳市广前电力有限公司 | For controlling the power-economizing method of GTCC power plant Main Transformer Cooler |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |