CN206977027U - G-T protective device and its degaussing switch trip(ping) circuit - Google Patents
G-T protective device and its degaussing switch trip(ping) circuit Download PDFInfo
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- CN206977027U CN206977027U CN201720381693.2U CN201720381693U CN206977027U CN 206977027 U CN206977027 U CN 206977027U CN 201720381693 U CN201720381693 U CN 201720381693U CN 206977027 U CN206977027 U CN 206977027U
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Abstract
The utility model discloses a kind of degaussing switch trip(ping) circuit, including reserving extension wire, breaking coil one, breaking coil two, also include being used for the time-delay relay for keeping G-T protective action command, relay coil in time-delay relay is series at the alternate outlets in reserved extension wire, the breaking coil one that two contacts in time-delay relay are parallel in breaking coil one respectively exports, breaking coil two in breaking coil two exports, the delay time of time-delay relay is more than the smaller value in the trip operation time of breaking coil one and the trip operation time of breaking coil two.Such a degaussing switch trip(ping) circuit by setting up time-delay relay, eliminate after G-T protective action can not shunt tripping degaussing switch automatically technological deficiency, it is ensured that unit safe operation reliably and with long-term., can reliable automatic shunt tripping degaussing switch after G-T protective action the invention also discloses a kind of G-T protective device for including above-mentioned degaussing switch trip(ping) circuit.
Description
Technical field
Electrical equipment technical field is the utility model is related to, more particularly to a kind of degaussing switch trip(ping) circuit.In addition, this reality
A kind of G-T protective device for including above-mentioned degaussing switch trip(ping) circuit is further related to new.
Background technology
The generating set being connected to the grid and the transformer combination being connected with generator are referred to as " transformer unit ", the change in transformer unit
All very closely, the action of these protections is direct for the protection of depressor and the protection for the generating set being connected with power network and power network relation
Affect the running situation of power network.Transformer unit can safely and steadily run with power network can safe and stable operation it is closely related.
Outlet, which acts on, after G-T protective action jumps Generator Outlet Switchgear and inversion field suppression, when journey jumps reverse-power protection
After action, protection exit jumps Generator Outlet Switchgear, and off-the-line demagnetization.During orderly closedown, program reverse-power protection is moved
Make to send out trip command to generator outlet breaker and degaussing switch trip(ping) circuit simultaneously.The tripping operation line of degaussing switch trip(ping) circuit
The gate out switch action of circle relative generator is slower, and Generator Outlet Switchgear only needs 60ms can trippings, and generator outlet is opened
After shut-off is opened, failure situation disappears, and G-T protective device action contact returns, and protection exit to protection time of return is about
100ms, and the degaussing switch trip(ping) circuit trip operation time is longer, breaking coil 1 needs 180ms trip time, tripping operation
Coil 2 03 needs 120ms trip time, has tripped in Generator Outlet Switchgear, the outlet of G-T protective device action is returned
Hui Hou, the trip command of degaussing switch trip(ping) circuit disappear, and because trip command does not reach 120ms, therefore demagnetization can not be opened
Shut-off is opened so that after change group protection act can not shunt tripping degaussing switch automatically, unit long-term safety reliability service can not be ensured.
Therefore, how to eliminate after G-T protective action can not shunt tripping degaussing switch automatically technological deficiency, be this area
The current technical issues that need to address of technical staff.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of degaussing switch trip(ping) circuit, eliminates G-T protective
After action can not shunt tripping degaussing switch automatically technological deficiency, it is ensured that unit long-term safety reliability service.The utility model
Another object be to provide a kind of G-T protective device for including above-mentioned degaussing switch trip(ping) circuit, eliminate G-T protective
After action can not shunt tripping degaussing switch automatically technological deficiency, it is ensured that unit long-term safety reliability service.
To achieve the above object, the utility model provides following technical scheme：
A kind of degaussing switch trip(ping) circuit, including reserved extension wire, breaking coil one, breaking coil two, in addition to use
Relay coil in the time-delay relay for keeping G-T protective action command, the time-delay relay is series at described pre-
Stay the alternate outlets in extension wire, two contacts in the time-delay relay are parallel in the breaking coil one respectively
Breaking coil one exports, the breaking coil two in the breaking coil two exports, and the delay time of the time-delay relay is more than
The trip operation time of the breaking coil one and the smaller value in the trip operation time of the breaking coil two.
Preferably, the delay time of the time-delay relay be more than the breaking coil one the trip operation time with it is described
Higher value in the trip operation time of breaking coil two.
Preferably, the time-delay relay is the time-delay relay that delay time is at least 500ms.
A kind of G-T protective device, including degaussing switch trip(ping) circuit, the degaussing switch trip(ping) circuit is as described above
Degaussing switch trip(ping) circuit.
G-T protective device provided by the utility model includes time-delay relay.When protection act jumps degaussing switch
When, the outlet of breaking coil one closes with the outlet of breaking coil two, while alternate outlets close, start-up study relay, when there is hair
During motor gate out switch tripping, breaking coil one is exported, the outlet of breaking coil one is returned and disconnected, because time-delay relay contact moves
Make, just returned after the delay time of time-delay relay is met, keep G-T protective action command, breaking coil one is with jumping
It is at least one in brake cable circle two to keep, until degaussing switch tripping, join automatically after thereby may be ensured that G-T protective action
Jump degaussing switch.
By setting up time-delay relay, eliminating can not be automatic after G-T protective acts for such a degaussing switch trip(ping) circuit
The technological deficiency of shunt tripping degaussing switch, electric loop transformation is simple, and without changing logic, trouble point is also relatively fewer, Ke Yibao
Unit safe operation reliably and with long-term is demonstrate,proved, is advantageous to cost-effective, and the device is simple and practical, is easy to investigate during faulty or problem
With processing, it is easy to safeguard that there is promotional value in the new Construction of Unit and old Transformation of Unit of the same industry.
The G-T protective device provided by the utility model for including above-mentioned degaussing switch trip(ping) circuit, eliminates transformer unit
After protection act can not shunt tripping degaussing switch automatically technological deficiency, it is ensured that unit long-term safety reliability service.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing of offer.
Fig. 1 is the schematic diagram of degaussing switch trip(ping) circuit in the prior art；
Fig. 2 is provided the schematic diagram of degaussing switch trip(ping) circuit by the utility model.
In Fig. 1,02 is breaking coil one, and 03 is breaking coil two；
In Fig. 2,1 is reserved extension wire, and 11 be alternate outlets, and 2 be breaking coil one, and 21 be that breaking coil one exports, 3
It is that breaking coil two exports for breaking coil two, 31,4 be relay coil, and 5 be contact.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Core of the present utility model is to provide a kind of degaussing switch trip(ping) circuit, and eliminating can not after G-T protective acts
The technological deficiency of automatic shunt tripping degaussing switch, it is ensured that unit long-term safety reliability service.Another core of the present utility model
It is to provide a kind of G-T protective device for including above-mentioned degaussing switch trip(ping) circuit, eliminating can not after G-T protective acts
The technological deficiency of automatic shunt tripping degaussing switch, it is ensured that unit long-term safety reliability service.
Fig. 2 is refer to, Fig. 2 is provided the schematic diagram of degaussing switch trip(ping) circuit by the utility model.
The utility model is provided in a kind of specific embodiment of degaussing switch trip(ping) circuit, including reserved extension wire 1,
Breaking coil 1, breaking coil 23 and time-delay relay.The time-delay relay is used to keep G-T protective action command,
After Generator Outlet Switchgear is tripped, the delay of G-T protective action command returns, to keep the jump of degaussing switch trip(ping) circuit
Lock instructs.Relay coil 4 in time-delay relay is series at the alternate outlets 11 in reserved extension wire 1, time-delay relay
In two contacts 5 be parallel to the outlet of breaking coil one 21 in breaking coil 1, the tripping operation line in breaking coil 23 respectively
The outlet of circle two 31.The delay time of time-delay relay is more than the trip operation time of breaking coil 1 and the jump of breaking coil 23
Smaller value in lock actuation time.Wherein, reserving the Tripping matrix of the alternate outlets 11 in extension wire 1 need to adjust and trip
The Tripping matrix of the outlet of breaking coil two 31 in the outlet of breaking coil one 21, breaking coil 23 in coil 1 is consistent.
When protection act jumps degaussing switch, the outlet of breaking coil one 21 and the closure of the outlet of breaking coil two 31, and meanwhile it is standby
With the closure of outlet 11, start-up study relay, when there is Generator Outlet Switchgear tripping, the outlet of breaking coil one 21, trip line
The outlet of circle one 21, which returns, to be disconnected, and because time-delay relay contact acts, is just returned after the delay time of time-delay relay is met,
Keep G-T protective action command, breaking coil 1 can be kept with least one in breaking coil 23, until demagnetization is opened
Tripping is closed, thereby may be ensured that automatic shunt tripping degaussing switch after G-T protective action.
Such a degaussing switch trip(ping) circuit eliminates G-T protective and moved by setting up time-delay relay in original circuit
After work can not shunt tripping degaussing switch automatically technological deficiency, electric loop transformation is simple, and without changing logic, trouble point is also relative
It is less, it is ensured that unit safe operation reliably and with long-term, to be advantageous to cost-effective, and the device is simple and practical, faulty or ask
It is easy to investigation and processing during topic, is easy to safeguard, there is promotional value in the new Construction of Unit and old Transformation of Unit of the same industry.
Further, the delay time of time-delay relay can be more than trip operation time and the tripping operation of breaking coil 1
Higher value in the trip operation time of coil 23, it thereby may be ensured that and keep G-T protective action life in time-delay relay
When making, breaking coil 1 joins automatically with can be kept in the circuit of breaking coil 23 after further improving G-T protective action
Jump the reliability of degaussing switch.
Specifically, time-delay relay can be the time-delay relay that delay time is at least 500ms, to meet most of go out
The demand of magnetic switch.Certainly, the delay time not limited to this of time-delay relay.
Except above-mentioned degaussing switch trip(ping) circuit, the utility model additionally provides a kind of including being gone out disclosed in above-described embodiment
The G-T protective device of magnetic switch trip(ping) circuit, the G-T protective device trip back as a result of above-mentioned degaussing switch
Road, automatic shunt tripping degaussing switch after G-T protective action can be ensured, it is ensured that unit can safe operation reliably and with long-term.
Generally, G-T protective device includes A, B, C, D cabinet, and such a degaussing switch, which can be set, in each cabinet trips back
Road.
The structure of other each several parts of the G-T protective device refer to prior art, repeat no more herein.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
G-T protective device provided by the utility model and its degaussing switch trip(ping) circuit have been carried out in detail above
Introduce.Specific case used herein is set forth to principle of the present utility model and embodiment, above example
Illustrate that being only intended to help understands method and its core concept of the present utility model.It should be pointed out that for the general of the art
For logical technical staff, on the premise of the utility model principle is not departed from, some improvement can also be carried out to the utility model
And modification, these are improved and modification is also fallen into the protection domain of the utility model claims.
Claims (4)
1. a kind of degaussing switch trip(ping) circuit, including reserved extension wire (1), breaking coil one (2), breaking coil two (3), its
It is characterised by, in addition to is used for the time-delay relay for keeping G-T protective action command, the relay in the time-delay relay
Device coil (4) is series at the alternate outlets (11) in the reserved extension wire (1), two contacts in the time-delay relay
(5) breaking coil one being parallel to respectively in the breaking coil one (2) exports the jump in (21), the breaking coil two (3)
Brake cable circle two exports (31), and the delay time of the time-delay relay is more than the trip operation time of the breaking coil one (2)
With the smaller value in the trip operation time of the breaking coil two (3).
2. degaussing switch trip(ping) circuit according to claim 1, it is characterised in that the delay time of the time-delay relay
More than the trip operation time of the breaking coil one (2) with it is larger in the trip operation time of the breaking coil two (3)
Value.
3. degaussing switch trip(ping) circuit according to claim 2, it is characterised in that the time-delay relay is delay time
At least 500ms time-delay relay.
4. a kind of G-T protective device, including degaussing switch trip(ping) circuit, it is characterised in that the degaussing switch trip(ping) circuit
For the degaussing switch trip(ping) circuit described in claims 1 to 3 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720381693.2U CN206977027U (en) | 2017-04-12 | 2017-04-12 | G-T protective device and its degaussing switch trip(ping) circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720381693.2U CN206977027U (en) | 2017-04-12 | 2017-04-12 | G-T protective device and its degaussing switch trip(ping) circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206977027U true CN206977027U (en) | 2018-02-06 |
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ID=61415629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720381693.2U Active CN206977027U (en) | 2017-04-12 | 2017-04-12 | G-T protective device and its degaussing switch trip(ping) circuit |
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| CN (1) | CN206977027U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616340A (en) * | 2019-01-14 | 2019-04-12 | 中国长江电力股份有限公司 | A kind of automatic auxiliary trip bar and operating method for CEX series degaussing switch |
| CN111812501A (en) * | 2020-07-20 | 2020-10-23 | 三门核电有限公司 | Generator-transformer set fault triggering system and method for diesel engine sequential on-load test |
-
2017
- 2017-04-12 CN CN201720381693.2U patent/CN206977027U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616340A (en) * | 2019-01-14 | 2019-04-12 | 中国长江电力股份有限公司 | A kind of automatic auxiliary trip bar and operating method for CEX series degaussing switch |
| CN109616340B (en) * | 2019-01-14 | 2023-10-24 | 中国长江电力股份有限公司 | Automatic auxiliary tripping rod for CEX series magnetic-killing switch and operation method |
| CN111812501A (en) * | 2020-07-20 | 2020-10-23 | 三门核电有限公司 | Generator-transformer set fault triggering system and method for diesel engine sequential on-load test |
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