CN207677661U - A kind of 6kV primary voltages balance system - Google Patents
A kind of 6kV primary voltages balance system Download PDFInfo
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- CN207677661U CN207677661U CN201721924127.8U CN201721924127U CN207677661U CN 207677661 U CN207677661 U CN 207677661U CN 201721924127 U CN201721924127 U CN 201721924127U CN 207677661 U CN207677661 U CN 207677661U
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- main break
- make control
- primary voltage
- balance system
- demagnetization
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Abstract
The utility model discloses 6kV primary voltage balance systems.Belong to primary voltage balancing technique field, which can carry out primary voltage balance detection and demagnetization to 6kV primary voltage balance system ontologies.Including controller, voice prompting device, communication module, degaussing switch device, 6kV primary voltage balance system ontologies and the generator for providing for 6kV primary voltage balance system ontologies mains power；6kV primary voltage balance system ontologies include by electric range balance detection circuit, and degaussing switch device includes the main break-make control module of No.1, No. two main break-make control modules and demagnetization module；The input terminal of the input terminal of the main break-make control module of No.1, the input terminal of No. two main break-make control modules and demagnetization module is respectively coupled on the power output end of generator；The output end of the main break-make control module of No.1 and the output end of No. two main break-make control modules are respectively coupled on the power input by electric range balance detection circuit.
Description
Technical field
The utility model is related to primary voltage balancing technique fields, and in particular to 6kV primary voltage balance systems.
Background technology
When carrying out primary voltage balance detection to 6kV primary voltage balance system ontologies, it usually will appear failure, due to
The electricity consumption of 6kV primary voltage balance system ontologies is larger, is powered off suddenly when 6kV primary voltage balance system ontologies break down
When, the electric energy that disconnects suddenly or the generator that mains power is provided for 6kV primary voltage balance system ontologies is generated huge
Impact even burns out generator when serious.Therefore design it is a kind of can to 6kV primary voltage balance system ontologies carry out primary voltage
Balance detection, and when power failure occur in 6kV primary voltage balance system ontologies, the system for being not easy to burn out generator seems
It is very necessary.
Utility model content
The utility model is to solve the above problem of existing 6kV primary voltages balance system ontological existence, provide one
Kind 6kV primary voltage balance systems, the system can carry out primary voltage balance detection to 6kV primary voltage balance system ontologies,
And when power failure occur in 6kV primary voltage balance system ontologies, can demagnetization operation, protection power generation be carried out to generator automatically
Machine power failure will not occurs because of 6kV primary voltage balance system ontologies and occur the case where causing generator to be burned, and prolong
The service life of long generator.
The above technical problem is solved by following technical proposal：
6kV primary voltage balance systems, including controller, communication module, degaussing switch device, 6kV primary voltages balance
System ontology and the generator that mains power is provided for 6kV primary voltage balance system ontologies；6kV primary voltage balance system sheets
Body includes by electric range balance detection circuit, and the degaussing switch device includes the main break-make control module of No.1, No. two main break-makes
Control module and demagnetization module；The input terminal of the input terminal of the main break-make control module of No.1, No. two main break-make control modules
It is respectively coupled on the power output end of generator with the input terminal of demagnetization module；The main break-make control module of No.1 it is defeated
The output end of outlet and No. two main break-make control modules is respectively coupled in the power input by electric range balance detection circuit
On；The communication module, the control terminal of the main break-make control module of control terminal, No.1 of 6kV primary voltage balance system ontologies, two
Number control terminal of main break-make control module and the control terminal of demagnetization module are connect with controller respectively.
When power failure occur in 6kV primary voltage balance system ontologies, demagnetization module starts immediately carries out generator
Demagnetization operation, to protect generator to be not easy to be burned.This programme can be electric into line of travel to 6kV primary voltage balance system ontologies
Balance detection is pressed, and when power failure occur in 6kV primary voltage balance system ontologies, can demagnetization work be carried out to generator automatically
Industry, protection generator power failure will not occur because of 6kV primary voltage balance system ontologies and generator caused to be burned
Situation occurs, and extends the service life of generator.
Preferably, by electric range balance detection circuit include 220kV booster stations, 220kV main bus-bars, 220kV pairs busbar,
B sections of 220kV bus connection switches, Qi Beibian, 6kV A sections of station-service electric units and 6kV station-service electric units；Two electricity of 220kV booster stations
Pole output end be connected on 220kV main bus-bars and 20kV pair busbares on；20kV main bus-bars and 220kV pairs busbar are to opening standby change
It is connected using overhead transmission line, and opens standby become equipped with 220kV on overhead transmission line and switch；The both ends of 220kV bus connection switches connect respectively
Be connected on 220kV pair busbares and 220kV main bus-bars on；A sections of station-service electric units of 6kV are connected with standby become is opened, B sections of station services of 6kV
Unit also with open standby become and connect；The output end of the main break-make control module of No.1 and the output end of No. two main break-make control modules all divide
It is not connected on the power input of 220kV booster stations.
After opening standby become by electricity, low-pressure side 6kVA, B section primary voltage mutual inductor charges, and 6kV A, B sections of inlet wires are protected at this time
PT abnormal alarms are sent out on protection unit and G-T protective device, testing crew checks primary voltage, it is found that whether voltage puts down
Weighing apparatus.
Preferably, 6kV primary voltage balance systems further include the address scrambler being connect with controller.
The utility model can reach following effect：
When power failure occur in 6kV primary voltage balance system ontologies, demagnetization module starts pair the utility model immediately
Generator carries out demagnetization operation, to protect generator to be not easy to be burned.This programme can also realize high pressure in the case that zero load
Cable differential protection verifies, and when power failure occur in 6kV primary voltage balance system ontologies, can be carried out automatically to generator
Demagnetization operation, protection generator power failure will not occur because of 6kV primary voltage balance system ontologies and lead to generator quilt
The case where burning out occurs, and extends the service life of generator.Simple in structure, safety is good, and reliability is high.
Description of the drawings
Fig. 1 is a kind of schematic diagram of circuit principle connecting structure of the utility model embodiment.
Fig. 2 is a kind of circuit theory connection structure schematic block diagram of the utility model embodiment.
Fig. 3 is that the utility model is illustrated by a kind of circuit theory connection structure of electric range balance detection circuit embodiment
Figure.
Specific implementation mode
The utility model is further described with embodiment below in conjunction with the accompanying drawings.
Embodiment：6kV primary voltage balance systems, shown in Fig. 1-Fig. 3.Including controller w4, communication module w21,
Degaussing switch device w19,6kV primary voltage balance system ontology w18 and provide power supply for 6kV primary voltage balance system ontologies
The generator w17 of power；6kV primary voltage balance system ontologies include by electric range balance detection circuit w29, degaussing switch dress
It sets including the main break-make control module w1 of No.1, No. two main break-make control module w2 and demagnetization module w3；The main break-make of No.1 controls mould
The input terminal of the input terminal of block, the input terminal of No. two main break-make control modules and demagnetization module is respectively coupled the electricity in generator
On source output terminal；The output end of the main break-make control module of No.1 and the output end of No. two main break-make control modules are respectively coupled
On power input by electric range balance detection circuit；Communication module, the control terminal of 6kV primary voltage balance system ontologies,
The control terminal of the control terminal of the main break-make control module of No.1, the control terminal of No. two main break-make control modules and demagnetization module respectively with
Controller connects.
6kV primary voltage balance systems further include the address scrambler w30 being connect with controller.
Included 220kV booster stations w23,220kV main bus-bar, 220kV pairs busbar, 220kV by electric range balance detection circuit
Bus connection switch w25, B sections of standby change w26,6kV A sections of station-services electric unit w27 and 6kV station-service electric unit w28 are opened；220kV booster stations
Two electrode outputs be connected on 220kV main bus-bars and 20kV pair busbares on；20kV main bus-bars and 220kV pair busbares
It is connected using overhead transmission line to standby become is opened, and is opened equipped with 220kV for switch w24 is become on overhead transmission line；220kV bus connection switches
Both ends be connected on 220kV pair busbares and 220kV main bus-bars on；A sections of station-service electric units of 6kV are connected with standby become is opened, 6kV
B sections of station-service electric units also with open standby become and connect；The output end of the main break-make control module of No.1 and No. two main break-make control modules
Output end is respectively coupled on the power input of 220kV booster stations.
Further include No.1 node w5 and No. two node w6, the main break-make control module of No.1 includes No.1 left-handed opening w7, No.1
Relay w8 and the right switch w9 of No.1, No. two main break-make control modules include No. two left-handed opening w10, No. two relay w11 and two
Number right switch w12, demagnetization module includes demagnetization left-handed opening w13, demagnetization relay w14, the right switch w15 of demagnetization and de-excitation resistance
w16；
The left end of the left end of No.1 left-handed opening, the left end of No. two left-handed openings and demagnetization left-handed opening is connected to No.1 node
On；The right end of No.1 left-handed opening is connected to the left end of No.1 relay, and the right end of No.1 relay is connected to the right switch of No.1
The right end of left end, the right switch of No.1 is connected on No. two nodes；The right end of No. two left-handed openings is connected to the left end of No. two relays,
The right end of No. two relays is connected to the left end of No. two right switches, and the right end of No. two right switches is connected on No. two nodes；Demagnetization
Left-handed opening right end is connected to the left end of demagnetization relay, and the right end of demagnetization relay is connected to the left end of the right switch of demagnetization, demagnetization
The right end of right switch is connected on de-excitation resistance；The power input of 220kV booster stations is connected on No. two nodes；Generator
Power output end is connected on No.1 node；
The control terminal of the right switch of the control terminal of No.1 left-handed opening, the control terminal of No.1 relay, No.1, No. two left-handed openings
Control terminal, the control terminal of No. two relays, the control terminals of No. two right switches, the control terminal of demagnetization left-handed opening, demagnetization relay
Control terminal and the control terminal of the right switch of demagnetization are connect with controller respectively.
The demagnetization control of 6kV primary voltage balance systems is as follows：
If the main break-make control module of No.1 is since controller sends out No.1 open command to the main break-make control module of No.1
A length of T1 when the disconnection reaction needed for disconnection action is completed,
If No. two main break-make control modules are since controller sends out No. two open commands to No. two main break-make control modules
A length of T2 when the disconnection reaction needed for disconnection action is completed,
If demagnetization module completes leading needed for turn-on action since controller sends out demagnetization turn-on command to demagnetization module
A length of T3 when logical reaction；
If the time needed for the demagnetization switching of the generator system corresponding to 6kV primary voltage balance systems is H；
When the main break-make control module conducting of No.1, No. two main break-make control modules are then off, and are being controlled at this time
The value and demagnetization module conducting reaction duration of the disconnection reaction duration T2 of No. two main break-make control modules are detected under the control of device processed
The value of T3；Calculate demagnetization module be conducting to No. two main break-make control modules disconnect between time difference H2, then have H2=| T2-T3
|≤H；When it is back to back to carry out demagnetization operation in the case of No. two main break-make control modules conductings next time when, if working as T2-
When T3 >=0, then the H2 time internal controllers after No. two open commands start are sent out to No. two main break-make control modules in controller
Demagnetization turn-on command will be sent out to demagnetization module；If when T2-T3 ＜ 0, being sent out to No. two main break-make control modules in controller
Demagnetization module will be sent out demagnetization turn-on command by going out the H2 times internal controller before No. two open commands start；
When No. two main break-make control module conductings, the main break-make control module of No.1 is then off, and is being controlled at this time
The value and demagnetization module conducting reaction duration of the disconnection reaction duration T1 of the main break-make control module of No.1 are detected under the control of device processed
The value of T3；Calculate demagnetization module be conducting to the main break-make control module of No.1 disconnect between time difference H1, then have H1=| T1-T3
|≤H；When it is back to back to carry out demagnetization operation in the case of No.1 main break-make control module conducting next time when, if working as T1-
When T3 >=0, then the H1 time internal controllers after No.1 open command starts are sent out to the main break-make control module of No.1 in controller
Demagnetization turn-on command will be sent out to demagnetization module；If when T1-T3 ＜ 0, being sent out to the main break-make control module of No.1 in controller
The H1 times internal controller gone out before No.1 open command starts will send out demagnetization module demagnetization turn-on command.
When duration T1 is reacted in the disconnection for detecting the main break-make control module of No.1, under the control of the controller, No.1 is first allowed
Left-handed opening and the right switch of No.1 all disconnect, and duration, the disconnection of the No.1 relay are reacted in the disconnection for then detecting No.1 relay
It is T1 to react duration；It has detected after the disconnection reaction duration T1 of No.1 relay then by No.1 left-handed opening and the right switch of No.1
It is all closed, and No.1 relay is allowed to be off；
When duration T2 is reacted in the disconnection for detecting No. two main break-make control modules, under the control of the controller, No. two are first allowed
Left-handed opening and No. two right switches all disconnect, and duration, the disconnection of No. two relays are reacted in the disconnection for then detecting No. two relays
It is T2 to react duration；It has detected after the disconnection reaction duration T2 of No. two relays then by No. two left-handed openings and No. two right switches
It is all closed, and No. two relays is allowed to be off；
When detecting demagnetization module conducting reaction duration T3, under the control of the controller, demagnetization left-handed opening and demagnetization are first allowed
Right switch all disconnects, and then detects the closed reaction duration of demagnetization relay, and the closed reaction duration of the demagnetization relay is
T3；Then the right switch of demagnetization left-handed opening and demagnetization is all closed after having detected the closed reaction duration T3 of demagnetization relay, and is allowed
Demagnetization relay is off.
If the main break-make control module of No.1 and No. two main break-make control modules are all in the demagnetization mistake in the case of conducting state
Cheng Shi, when T1 ＜ T2 if in demagnetization when, the main break-make control module of No.1 will be before No. two main break-make control modules disconnect first
It disconnects；Conversely, if when T1 ＞ T2 in demagnetization when, No. two main break-make control modules will disconnect it in the main break-make control module of No.1
It is preceding first to disconnect.
After opening standby become by electricity, low-pressure side 6kVA, B section primary voltage mutual inductor charges, and 6kV A, B sections of inlet wires are protected at this time
PT abnormal alarms are sent out on protection unit and G-T protective device, testing crew checks primary voltage, it is found that whether voltage puts down
Weighing apparatus.
Using the preferable voltage transformer of excitation property；The star-like capacitance of three-phase of neutral ground is installed on 6kV busbares
Device group；Increase damping resistance on 6kV primary voltage mutual inductor secondary side open-triangular windings.
Under 6kV busbar light conditions, accessed temporarily on A sections of primary voltage mutual inductor secondary side open-triangular windings of 6kV
One 50 Ω slide-wire rheostat, is gradually reduced resistance, observes and records the variation of 6kV primary voltage amplitudes and flows through slide-wire rheostat
Current value, data such as following table：
Implement two
Under 6kV busbar light conditions, connect temporarily on B sections of primary voltage mutual inductor secondary side open-triangular windings of 6kV
Enter a 50 Ω slide-wire rheostats, be gradually reduced resistance, observe and record the variation of 6kV primary voltage amplitudes and flows through slip variable resistance
Device current value, data are as shown in the table：
The present embodiment can be right respectively in No. two main break-make control module free time or when No.1 main break-make control module free time
It carries out switch opening/closing time detection, and reliability is high.When there is power failure in 6kV primary voltage balance system ontologies, demagnetization
Module starts immediately carries out demagnetization operation to generator, to protect generator to be not easy to be burned.The present embodiment is in zero load feelings
Also it can realize that high-tension cable differential protection verifies under condition, and when power failure occur in 6kV primary voltage balance system ontologies, energy
Automatically demagnetization operation is carried out to generator, electric power event will not occur because of 6kV primary voltage balance system ontologies in protection generator
The case where hindering and generator is caused to be burned occurs, and extends the service life of generator.Simple in structure, safety is good, reliability
It is high.
The embodiments of the present invention have been described above with reference to the accompanying drawings, and however, the implementation is not limited to the above embodiments, this
Field those of ordinary skill can be with various changes and modifications may be made within the scope of the appended claims.
Claims (3)
1. a kind of 6kV primary voltages balance system, which is characterized in that including controller, communication module, degaussing switch device, 6kV
Primary voltage balance system ontology and the generator that mains power is provided for 6kV primary voltage balance system ontologies；6kV inlet wire electricity
It includes by electric range balance detection circuit to flatten balance system ontology, and the degaussing switch device includes the main break-make control mould of No.1
Block, No. two main break-make control modules and demagnetization module；The input terminal of the main break-make control module of No.1, No. two main break-make controls
The input terminal of module and the input terminal of demagnetization module are respectively coupled on the power output end of generator；The main break-make of No.1
The output end of control module and the output end of No. two main break-make control modules are respectively coupled by electric range balance detection circuit
Power input on；The communication module, the main break-make of control terminal, the No.1 of 6kV primary voltage balance system ontologies control mould
The control terminal of the control terminal of block, the control terminal of No. two main break-make control modules and demagnetization module is connect with controller respectively.
2. a kind of 6kV primary voltages balance system according to claim 1, which is characterized in that by electric range balance detection
Circuit includes 220kV booster stations, 220kV main bus-bars, 220kV pairs busbar, 220kV bus connection switches, Qi Beibian, 6kV A sections of station-services
B sections of station-service electric units of electric unit and 6kV；Two electrode outputs of 220kV booster stations are connected on 220kV main bus-bars
On 20kV pair busbares；20kV main bus-bars are connected to standby become is opened using overhead transmission line with 220kV pairs busbar, and on overhead transmission line
Standby become is opened equipped with 220kV to switch；The both ends of 220kV bus connection switches are connected on 220kV pair busbares and 220kV main bus-bars
On；It A sections of station-service electric units of 6kV and opens standby become and connects, B section station-service electric units of 6kV also standby become connection with opening；The main break-make control of No.1
The output end of molding block and the output end of No. two main break-make control modules are respectively coupled the power input in 220kV booster stations
On.
3. a kind of 6kV primary voltages balance system according to claim 1, which is characterized in that 6kV primary voltages balance system
System further includes the address scrambler being connect with controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721924127.8U CN207677661U (en) | 2017-12-31 | 2017-12-31 | A kind of 6kV primary voltages balance system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721924127.8U CN207677661U (en) | 2017-12-31 | 2017-12-31 | A kind of 6kV primary voltages balance system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207677661U true CN207677661U (en) | 2018-07-31 |
Family
ID=62972119
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721924127.8U Active CN207677661U (en) | 2017-12-31 | 2017-12-31 | A kind of 6kV primary voltages balance system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114280385A (en) * | 2021-12-30 | 2022-04-05 | 北京京能高安屯燃气热电有限责任公司 | Service power three-phase voltage balance judgment method based on real-time monitoring |
-
2017
- 2017-12-31 CN CN201721924127.8U patent/CN207677661U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114280385A (en) * | 2021-12-30 | 2022-04-05 | 北京京能高安屯燃气热电有限责任公司 | Service power three-phase voltage balance judgment method based on real-time monitoring |
| CN114280385B (en) * | 2021-12-30 | 2023-12-26 | 北京京能高安屯燃气热电有限责任公司 | Real-time monitoring-based station service three-phase voltage balance judging method |
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