CN206975803U - A kind of accessory system alarm circuit of field regulator 142 - Google Patents
A kind of accessory system alarm circuit of field regulator 142 Download PDFInfo
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- CN206975803U CN206975803U CN201720650607.3U CN201720650607U CN206975803U CN 206975803 U CN206975803 U CN 206975803U CN 201720650607 U CN201720650607 U CN 201720650607U CN 206975803 U CN206975803 U CN 206975803U
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- breakers
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- kau
- field regulator
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Abstract
The utility model discloses a kind of accessory system alarm circuit of field regulator 142, including Q96 breakers, Q91 breakers, Q90 breakers, Q05 breakers, Q03 breakers, Q51 breakers and Q25 breakers, Q96 breakers, Q91 breakers, Q90 breakers, Q05 breakers, Q03 breakers, the normally closed auxiliary contact of Q51 breakers and Q25 breakers are arranged in parallel, and it is linked into the coil of KAU auxiliary reclays, the normally-closed contact access DI points of KAU auxiliary reclays.The accessory system alarm circuit of field regulator 142 provided by the utility model, its excitation software logic varies without, only transformed by simple hardware-in-the-loop, the normally closed auxiliary contact of multiple air switches is connected, the normally opened auxiliary contact for being changed to each air switch are in parallel, 142 alarm circuits are solved because series connection normally closed contact is too many, contact resistance increase, cause the situation of false alarm.
Description
Technical field
It the utility model is related to alarm technique field, more particularly to a kind of accessory system alarm circuit of field regulator 142.
Background technology
At present, generator excitation system is broadly divided into four parts using generator terminal from shunt excitation static excitation system：
Exciting transformer, field regulator, silicon controlled rectifier (SCR), open and encourage and demagnetization unit.
Wherein, field regulator AVR uses digital microcomputer type adjuster, the identical and independent automatic magnetic exciting by two-way
Adjuster parallel running, two interchannels, when regulator channel breaks down all the way, can be cut unperturbed automatically mutually from motion tracking
Another passage operation is changed to, and sends alarm.During single channel regulator independent operating, it is fully able to meet under the various operating modes of generator
Normal operation, manual, automatic circuit can be mutually from motion tracking；When automatic loop failure, can automatically no-harass switch it is in one's hands
It is dynamic.
During normal operation, adjustment of field excitation cabinet Q96, Q91, Q90, Q05, Q03, Q51, Q25 are respectively spaced apart the normally opened of auxiliary contact
Contact is connected (each auxiliary contact are normally opened, are closed after power transmission), and the change of contact resistance moment is big after long-play, partial pressure mistake
It is more, DI channel voltages drop can be caused excessive, easily trigger 142 alarms,
The accessory system of field regulator 142 is alarmed：Accessory power supply miniature circuit breaker tripping operation (also known as：Excitation system aids in
System exits), check and recover power transmission.Indicative alarm, any failure, and interlocking action will not be triggered.The alarm circuit
In miniature circuit breaker include：
Q96：Regulator cubicle cabinet door fan power
Q91：Station-service steam turbine PC distribution section is come, rectifier cabinet cooling blower power supply two
Q90：Station-service steam turbine PC distribution section is come, each cabinet internal heater, cabinet top lighting lamp power
Q05：Excitation alternating current inlet wire cabinet T05 controls transformer, field regulator direct current 24V main power sources AC switch
Q03：Main frame 220V DC feeders screen comes, excitation DC power supply switch
Q51：Field regulator 24V D/C powers DC side switchs
Q25：Main frame 110V DC feeders screen comes, the tunnel of degaussing switch second tripping operation power switch
Software logic explanation：
1) when the auxiliary contact contact that each auxiliary switch power transmission is normal, respectively connects is good, 10714 be 1, after negating, no
142 alarms can be sent；
2) when any disconnection of auxiliary switch or auxiliary contact loose contact, 10714 be 0, sends 142 alarms, for prompting
Property alarm, have no other interlocking action commands send.
At present, the alarm of excitation system 142 takes place frequently has a great influence to the safe and stable operation of excitation system, larger peace be present
Full hidden danger.The stoppage in transit once excitation system breaks down, will cause unit is non-to stop, and the stable operation to network system will cause huge
Influence
Therefore, how a kind of accessory system alarm circuit of field regulator 142 is provided, is current ability to avoid reporting by mistake
Field technique personnel technical problem urgently to be resolved hurrily.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of accessory system alarm circuit of field regulator 142, with
Avoid reporting by mistake.
In order to achieve the above object, the utility model provides following technical scheme：
A kind of accessory system alarm circuit of field regulator 142, including Q96 breakers, Q91 breakers, Q90 breakers,
Q05 breakers, Q03 breakers, Q51 breakers and Q25 breakers, the Q96 breakers, the Q91 breakers, the Q90
Breaker, the Q05 breakers, the Q03 breakers, the normally closed auxiliary contact of the Q51 breakers and the Q25 breakers
It is arranged in parallel, and is linked into the coil of KAU auxiliary reclays, the normally-closed contact access DI points of the KAU auxiliary reclays.
Preferably, the coil voltage of above-mentioned KAU auxiliary reclays is 110V.
Preferably, the coil voltage of above-mentioned KAU auxiliary reclays is direct current 110V.
The accessory system alarm circuit of field regulator 142 provided by the utility model, including Q96 breakers, Q91 open circuit
Device, Q90 breakers, Q05 breakers, Q03 breakers, Q51 breakers and Q25 breakers, the Q96 breakers, the Q91 break
Road device, the Q90 breakers, the Q05 breakers, the Q03 breakers, the Q51 breakers and the Q25 breakers
Normally closed auxiliary contact is arranged in parallel, and is linked into the coil of KAU auxiliary reclays, the KAU auxiliary reclays it is normally closed
DI points are accessed in contact.The accessory system alarm circuit of field regulator 142 provided by the utility model, its excitation software logic are not required to
Change, only transformed by simple hardware-in-the-loop, the normally closed auxiliary contact of multiple air switches is connected, each air is changed to and opens
The normally opened auxiliary contact closed are in parallel, solve 142 alarm circuits because series connection normally closed contact is too many, contact resistance increase, cause to miss
The situation of alarm.
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 these
Some embodiments of 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 these accompanying drawings.
Fig. 1 is the structural representation for the accessory system alarm circuit of field regulator 142 that the utility model embodiment provides.
In figure 1 above：
KAU auxiliary reclays 1.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to
The scope of the utility model protection.
Fig. 1 is refer to, Fig. 1 is the accessory system alarm circuit of field regulator 142 that the utility model embodiment provides
Structural representation.
The accessory system alarm circuit of field regulator 142 that the utility model embodiment provides, including Q96 breakers, Q91
Breaker, Q90 breakers, Q05 breakers, Q03 breakers, Q51 breakers and Q25 breakers, Q96 breakers, Q91 open circuits
Device, Q90 breakers, Q05 breakers, Q03 breakers, the normally closed auxiliary contact of Q51 breakers and Q25 breakers are arranged in parallel,
And it is linked into the coil of KAU auxiliary reclays 1, the normally-closed contact access DI points of KAU auxiliary reclays 1.The utility model
The accessory system alarm circuit of field regulator 142 that embodiment provides, its excitation software logic varies without, only by simple
Hardware-in-the-loop is transformed, and the normally closed auxiliary contact of multiple air switches is connected, and is changed to the normally opened auxiliary contact of each air switch
Parallel connection, solve 142 alarm circuits because series connection normally closed contact is too many, contact resistance increase, cause the situation of false alarm.
The transformation thinking of the accessory system alarm circuit of field regulator 142 that the utility model embodiment provides is, will be with
The normally opened auxiliary for being respectively spaced apart (Q96, Q91, Q90, Q05, Q03, Q51, Q25) in the related adjustment of field excitation cabinet of 142 alarm circuits is touched
Point series connection is changed to：(each auxiliary contact are normally closed, are disconnected after power transmission) in parallel, the access using the normally closed auxiliary contact each switched
Into the newly-increased coil of KAU auxiliary reclays 1 (coil voltage 110V DC), the normally-closed contact of KAU auxiliary reclays 1 is reused
The DI points (i.e. the D14 passages of U70 plates) of the alarm of access original 142.
Excitation software logic varies without.
In normal operation, Q96, Q91, Q90, Q05, Q03, Q51, Q25, which are respectively spaced apart, is respectively positioned on power transmission state, its normally closed auxiliary
Contact is respectively positioned on open position, and KAU relay coils are not charged, 142 alarm signals accessed by KAU relay normally closed contacts
Number --- the D14 passages of U70 plates are always situated in on-state.
When it is any be spaced apart tripping operation after, its normally closed auxiliary contact closure, drive the newly-increased coil band of " KAU " auxiliary reclay 1
Electricity, KAU normally-closed contact disconnect, and the D14 passages of U70 plates go off state, and excitation system is sent " 142 accessory systems exit "
Alarm signal.
The utility model embodiment provide 142 accessory system alarm circuit of field regulator the advantages of be：
1) electric loop transformation is simple, and this transformation only passes through the wiring for changing air switch auxiliary contact and increase KAU
Auxiliary reclay 1, to complete the transformation in 142 alarm signal loops, it is not required to be modified excitation software logic, electric specialty people
Member can the live cost completed, be increased without producer's Site Service.Equipment simplifies, and trouble point is also relatively few, securely and reliably, no
Increase expense, the technical staff for having certain electrically knowledge can complete independently.
2) electric power loop is simple and practical, during faulty or problem, is easy to investigate and handles.It is easy to maintenance
3) the accessory system alarm circuit of field regulator 142 is transformed, to there is similar phenomenon in similar transformer unit of the same trade
Unit provide transformation and upgrade reference.The technology has in new Construction of Unit and old unit upgrading in the same industry
Promotional value.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (3)
1. a kind of accessory system alarm circuit of field regulator 142, including Q96 breakers, Q91 breakers, Q90 breakers, Q05
Breaker, Q03 breakers, Q51 breakers and Q25 breakers, it is characterised in that
The Q96 breakers, the Q91 breakers, the Q90 breakers, the Q05 breakers, the Q03 breakers, institute
The normally closed auxiliary contact for stating Q51 breakers and the Q25 breakers is arranged in parallel, and is linked into the line of KAU auxiliary reclays
In circle,
The normally-closed contact access DI points of the KAU auxiliary reclays.
2. the accessory system alarm circuit of field regulator 142 according to claim 1, it is characterised in that among the KAU
The coil voltage of relay is 110V.
3. the accessory system alarm circuit of field regulator 142 according to claim 2, it is characterised in that among the KAU
The coil voltage of relay is direct current 110V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720650607.3U CN206975803U (en) | 2017-06-06 | 2017-06-06 | A kind of accessory system alarm circuit of field regulator 142 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720650607.3U CN206975803U (en) | 2017-06-06 | 2017-06-06 | A kind of accessory system alarm circuit of field regulator 142 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206975803U true CN206975803U (en) | 2018-02-06 |
Family
ID=61409597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720650607.3U Active CN206975803U (en) | 2017-06-06 | 2017-06-06 | A kind of accessory system alarm circuit of field regulator 142 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206975803U (en) |
-
2017
- 2017-06-06 CN CN201720650607.3U patent/CN206975803U/en active Active
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