CN209170257U - A kind of generator excited system excitation blocking device - Google Patents
A kind of generator excited system excitation blocking device Download PDFInfo
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- CN209170257U CN209170257U CN201920035379.8U CN201920035379U CN209170257U CN 209170257 U CN209170257 U CN 209170257U CN 201920035379 U CN201920035379 U CN 201920035379U CN 209170257 U CN209170257 U CN 209170257U
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- opened contact
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Abstract
A kind of generator excited system excitation blocking device, it includes signal series arm and the control power supply and field regulator that connect with signal series arm both ends, and signal series arm includes the normally closed contact of the normal opened contact of concatenated excitation power switch, the normal opened contact of degaussing switch, the normal opened contact of power cabinet fan power switch, the normally closed contact for moving back field application relay, the normal opened contact of generator rated speed relay, excitation system power transfer relay.The purpose of this utility model is to provide for a kind of to carry out the device and method whether generator has the judgement of excitation condition in generator start process, to solve under the conditions of being unsatisfactory for excitation, generator boot failure, the technical issues of influencing power generation and stability of power system, and damaging power equipment.
Description
Technical field
The utility model relates to generator excited systems, and in particular to a kind of generator excited system excitation blocking device.
Background technique
Synchronous generator excited system major function is exactly that generator unit stator voltage is maintained to stablize, and improves the steady of electric system
It is qualitative.Generator be switched on when, have first prime mover drive generator rotation, generator revolving speed close to it is specified when, generator
Excitation system will put into operation, begin setting up initial stator voltage for generator, and wherein generator is zero to reach from stator voltage
To the process of generator unit stator voltage rated value, the referred to as excitation of generator.
Excitation system excitation generally using access alternating current excitation initiating power supply or direct current excitation power mode, is established just for generator
Beginning voltage.However at present in generator start process, often there is the unsuccessful problem of excitation in excitation system, leads to generator
Boot failure seriously affects the stabilization of power generation and electric system.The reason of causing excitation to fail mostly be because generator not
Caused by having excitation condition, lack excitation locking Rule of judgment, to throw excitation in the case where not having booting throwing excitation and lead
Cause boot failure.
Summary of the invention
The purpose of this utility model is to provide for a kind of to carry out whether generator has in generator start process
The device of the judgement of excitation condition, to solve under the conditions of being unsatisfactory for excitation, generator boot failure influences power generation and electricity
Force system stability, and the technical issues of damage power equipment.
The purpose of utility model is achieved in that
A kind of generator excited system excitation blocking device, it include signal series arm and with signal series arm two
Hold connection control power supply and field regulator, signal series arm include concatenated excitation power switch normal opened contact,
The normal opened contact of degaussing switch, the normal opened contact that power cabinet fan power switchs, normally closed contact, the generator for moving back field application relay
The normally closed contact of the normal opened contact of rated speed relay, excitation system power transfer relay.
It is successively electric with the normal opened contact of excitation power switch, the normal opened contact of degaussing switch, power cabinet blower to control power supply
The normal opened contact of source switch, the normally closed contact for moving back field application relay, the normal opened contact of generator rated speed relay, excitation system
The normally closed contact of system power transfer relay, field regulator concatenation.
Above-mentioned field regulator is used for the adjusting and control of generator.
The normal opened contact of power cabinet fan power switch including multiple concatenations.
By adopting the above technical scheme, following technical effect can be brought:
Using the technical solution in the utility model, as long as there is arbitrary signal abnormal, it will be latched generator excitation function,
It is avoided that generator operates the generation for leading to generator accident by force in this way, meanwhile, the success of generator excitation is improved in this way
Rate.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples:
Fig. 1 is the circuit diagram of the utility model embodiment.
Specific embodiment
A kind of generator excited system excitation blocking device, it include signal series arm and with signal series arm two
The control power supply 1 and field regulator 2 of connection are held, signal series arm includes the normal opened contact of concatenated excitation power switch
3, the normal opened contact 4 of degaussing switch, power cabinet fan power switch normal opened contact 5, move back field application relay normally closed contact 6,
The normally closed contact 8 of the normal opened contact 7 of generator rated speed relay, excitation system power transfer relay.
Control power supply 1 successively with the normal opened contact 3 of excitation power switch, the normal opened contact 4 of degaussing switch, power cabinet blower
The normal opened contact 5 of power switch, the normally closed contact 6 for moving back field application relay, generator rated speed relay normal opened contact 7,
Normally closed contact 8, the field regulator 2 of excitation system power transfer relay concatenate.
The field regulator 2 is used for the adjusting and control of generator.
The normal opened contact 5 of power cabinet fan power switch including multiple concatenations.
As shown in Figure 1, including the normal opened contact of excitation power switch Q03；The normal opened contact of degaussing switch Q02；#1 power
The normal opened contact of cabinet fan power switch Q71；The normal opened contact of #2 power cabinet fan power switch Q72；#3 power cabinet blower electricity
The normal opened contact of source switch Q73；The normal opened contact of #4 power cabinet fan power switch Q74；If (having multiple power cabinets, concatenating
The contact of multiple power cabinet fan powers)；Move back the normally closed contact of field application relay K12；Generator rated speed relay it is normal
Open contact；The normally closed contact of excitation system power transfer relay K10；The excitation of field regulator allows On-off signal port, with
Upper various components form signal series arm in the form of concatenated, the control power supply 1 and encourage that signal series arm both ends connect
Magnestat 2.
Claims (4)
1. a kind of generator excited system excitation blocking device, it is characterised in that: it includes signal series arm and and signal
The control power supply (1) and field regulator (2) of series arm both ends connection, signal series arm includes concatenated excitation power supply
The normal opened contact (3) of switch, the normal opened contact (4) of degaussing switch, power cabinet fan power switch normal opened contact (5), move back and encourage
The normally closed contact (6) of magnetic relay, the normal opened contact (7) of generator rated speed relay, excitation system power transfer relay
Normally closed contact (8).
2. a kind of generator excited system excitation blocking device according to claim 1, it is characterised in that: control power supply
(1) it is successively switched with the normal opened contact of excitation power switch (3), the normal opened contact (4) of degaussing switch, power cabinet fan power
Normal opened contact (5), the normally closed contact (6) for moving back field application relay, the normal opened contact (7) of generator rated speed relay, excitation
The normally closed contact (8) of system failure relay, field regulator (2) concatenation.
3. a kind of generator excited system excitation blocking device according to claim 2, it is characterised in that: the Excitation Adjustment
Save adjusting and control that device (2) are used for generator.
4. a kind of generator excited system excitation blocking device according to claim 1 or 2, it is characterised in that: including more
The normal opened contact (5) of the power cabinet fan power switch of a concatenation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920035379.8U CN209170257U (en) | 2019-01-09 | 2019-01-09 | A kind of generator excited system excitation blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920035379.8U CN209170257U (en) | 2019-01-09 | 2019-01-09 | A kind of generator excited system excitation blocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209170257U true CN209170257U (en) | 2019-07-26 |
Family
ID=67328433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920035379.8U Active CN209170257U (en) | 2019-01-09 | 2019-01-09 | A kind of generator excited system excitation blocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209170257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713959A (en) * | 2019-01-09 | 2019-05-03 | 中国长江电力股份有限公司 | A kind of generator excited system excitation blocking device and method |
-
2019
- 2019-01-09 CN CN201920035379.8U patent/CN209170257U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713959A (en) * | 2019-01-09 | 2019-05-03 | 中国长江电力股份有限公司 | A kind of generator excited system excitation blocking device and method |
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