CN106849027B - A kind of hotline maintenance method of direct current system regulator - Google Patents
A kind of hotline maintenance method of direct current system regulator Download PDFInfo
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- CN106849027B CN106849027B CN201611229701.8A CN201611229701A CN106849027B CN 106849027 B CN106849027 B CN 106849027B CN 201611229701 A CN201611229701 A CN 201611229701A CN 106849027 B CN106849027 B CN 106849027B
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- Prior art keywords
- direct current
- current system
- female
- regulator
- silicon chain
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for dc systems
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- Electrostatic Separation (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of hotline maintenance method of direct current system regulator, including checks direct current system regulator working condition, automatically controls and turn manual control, unlock silicon chain monitoring terminal, hotline maintenance.The advantage of the invention is that, the hotline maintenance for realizing direct current system is shorted by the electrification to pressure regulation silicon chain, it does not need to carry out breakpoint to protection supervisory equipment, all defencive functions are intact, it does not need to breaker operator circuit breakpoint, operating mechanism divide-shut brake circuit is normal, it does not need to confirm other kinds information signal in standing, the signal transition information that monitoring backstage is quoted is true and reliable, it ensure that the normal power supply work of direct current system, it does not need to shut down the service work that can carry out regulator, effectively raise the efficiency of maintenance, avoid in maintenance process because shut down caused by security risk.
Description
Technical field
The invention belongs to technical field of electricity, and in particular to a kind of hotline maintenance method of direct current system regulator.
Background technique
It is minimum that DL/T5044-2004 Desinging of direct current power system in electrical power engineering technical regulation requires 110kV and the above substation to need
The double electricity of configuration are double to fill direct current screen system, 110kV and following power grid mostly use greatly single electricity singly to fill, double electricity singly fill formula direct current screen system into
Row power supply, DC control bus provide lasting, and compared with the DC power supply of Smaller load, and closing bus bar provides instantaneous biggish electricity
Source, when closing a floodgate, electric current is larger, will cause the decline in short-term of busbar voltage, if using silicon chain tune in the substation often operated
The DC power-supply system of pressure type, silicon chain are subjected to load variations impact for a long time, will cause monomer breakdown fault, direct current system in silicon chain
For a long time by rectification silicon chain pressure regulation, a part of electric energy is converted into thermal energy and discharged by silicon chain, will cause on direct current cabinet device temperature
It rises, torridity summer will lead to apparatus insulated decline, cause insulation breakdown, cause direct current supply outage, once in direct current cabinet
Rectification silicon chain breaks down, and will cause direct current power supply interruption, cause in case of a fault breaker can not tripping, scaling loss opens
Close cabinet equipment, scaling loss protection supervisory equipment power supply plate.
Current repair method needs to meet whole emptyings for all on direct current control mother's bus, releases high-frequency rectification inversion mould
Block work carries out the replacement operation of failure silicon chain monomer after keeping the female bus of direct current cabinet control mother bus, conjunction not charged, and control is female, conjunction is female
Protection supervisory equipment, circuit-breaker switching on-off circuit, other DC loops allotted lose power supply supply, all defencive functions
Failure, circuit breaker operation mechanism failure, whole station various information signal interruption, Awaiting Overhaul can restore after the completion, and repair method needs
Whole station is shut down and can just be carried out, and influences the powered operation at whole station, overhaul efficiency is low and there are some potential safety problemss.
Summary of the invention
The object of the present invention is to provide a kind of hotline maintenance methods of direct current system regulator, to solve in the prior art
Regulation Control device need to shut down and be overhauled, and influence the powered operation of direct current system, and overhaul efficiency is low and there are security risk
Problem.
In order to achieve the above objectives, the technical scheme is that a kind of hotline maintenance method of direct current system regulator,
Specifically includes the following steps:
(1), the working condition of direct current system regulator is checked, judge the fault point of silicon chain, confirmation is shorted electricity
Influence size of the SHUNT state to direct current supply；
(2), by the manual control to regulator auto state, manually adjusting for silicon chain is realized；
(3), electrification short circuit is carried out to the monomer silicon to break down on rectifying and pressure-regulating silicon chain；
(4), the silicon chain monitoring side subsolution on voltage regulator controllers is opened, and stops its work；
(5), close female, the female open circuit allotted of control be spaced apart in respectively choose one group it is spare be spaced apart, and using shorting stub will close it is female,
Control mother, which is spaced apart, to be carried out and connects, and is closed female, control mother and is spaced apart, directly replaces to failure silicon chain monomer after circuit is connected, directly
Stream closes female, control mother and charges always.
Preferably, in step (5), and the polarity of DC voltage has been confirmed before connecing, in polarity and supplying DC bus pole
Property it is consistent when, can be used the method carry out livewire work.
Preferably, in step (5) and wiring be 4Pin's or more and wiring, using being not susceptible to the fixed short of fusing
Wiring material makes the risk range diminution with point operation allot load-side, and load-side is less prone to direct current in livewire work
Failure is counted accurately to increase equipment operational safety.
The present invention has the advantages that being shorted the hotline maintenance for realizing direct current system by the electrification to pressure regulation silicon chain, no
It needs to carry out breakpoint to protection supervisory equipment, all defencive functions are intact, do not need to operate machine to breaker operator circuit breakpoint
Structure divide-shut brake circuit is normal, does not need to confirm other kinds information signal in standing, the signal transformation that monitoring backstage is quoted
Information is true and reliable, ensure that the normal power supply work of direct current system, does not need to shut down the maintenance that can carry out regulator
Work, effectively raise the efficiency of maintenance, avoid in maintenance process because shut down caused by security risk.
Specific embodiment
The invention will be further described With reference to embodiment.
A kind of hotline maintenance method of direct current system regulator, specifically includes the following steps:
(1), the working condition of direct current system regulator is checked, judge the fault point of silicon chain, confirmation is shorted electricity
Influence size of the SHUNT state to direct current supply；
(2), by the manual control to regulator auto state, manually adjusting for silicon chain is realized；
(3), electrification short circuit is carried out to the monomer silicon to break down on rectifying and pressure-regulating silicon chain；
(4), the silicon chain monitoring side subsolution on voltage regulator controllers is opened, and stops its work；
(5), close female, the female open circuit allotted of control be spaced apart in respectively choose one group it is spare be spaced apart, and using shorting stub will close it is female,
Control mother, which is spaced apart, to be carried out and connects, and is closed female, control mother and is spaced apart, directly replaces to failure silicon chain monomer after circuit is connected, directly
Stream closes female, control mother and charges always.
For the safety before guaranteeing and connecing, avoid occurring safety accident, in step (5), and confirmed direct current before connecing
The polarity of voltage can be used the method and carry out livewire work when polarity is consistent with supplying DC bus polarity.
In order to keep conjunction mother, control female being spaced apart and connect to be protected, enables it and wiring reaches maintenance requirement, in step
(5) in and wiring selects 4Pin's or more and wiring is put band and made using the fixed short circuit wire rod for being not susceptible to fusing
Load-side is being allotted in the risk range diminution of industry, and load-side is less prone to DC Line Fault in livewire work, sets to increase
Standby operational safety is counted accurately.
When being shorted to silicon chain, it can be directly shorted failure silicon chain, it can also multistage each one be shorted before and after fault point
Single silicon chain is to achieve the effect that manual voltage regulation.
Specific maintenance process is as follows: by adjusting the output valve of high-frequency rectification module on monitoring module, keeping direct current cabinet defeated
Conjunction mother's voltage out is consistent with controlling voltage, and silicon chain is made to be in minimum decompression working condition, allots open circuit closing female, control mother and is spaced apart
In respectively choose one group it is spare be spaced apart, and using shorting stub will close female, control mother and be spaced apart and carry out and connect, and confirm DC voltage before connecing
Polarity, and using 4Pin's or more and wiring, closes female, control mother and is spaced apart, and reaches direct current and closes that female, control is female charges always, is being
It can guarantee that control female power supply is directly provided by closing female power supply under other female short circuit fault conditions of system internal control, the female not power loss of control passes through
It manually adjusts silicon chain and is shorted point, integrally carry out replacement operation to failure silicon chain monomer or to silicon chain, reach direct current system band electric-examination
It repairs or direct current system electrification retrofit work, is not required to power off protection supervisory equipment, all defencive functions are intact, are not required to pair
The power-off of breaker operator circuit, operating mechanism divide-shut brake circuit is normal, is not required to confirm other kinds information signal in standing,
The signal transition information that monitoring backstage is quoted is true and reliable, ensure that the normal power supply work of direct current system, does not need to shut down
The service work that can carry out regulator, effectively raises the efficiency of maintenance, avoids in maintenance process and draw because of shutdown
The security risk risen.
Above-described is only preferred embodiments of the invention, and technical solution of the present invention is not limited thereto, it should be pointed out that
To those skilled in the art, under technical inspiration provided by the present invention, as the common knowledge of this field, also
Other equivalent modifications and improvement can be made, also should be regarded as protection scope of the present invention.
Claims (3)
1. a kind of hotline maintenance method of direct current system regulator, it is characterised in that: specifically includes the following steps:
(1), the working condition of direct current system regulator is checked, judge the fault point of silicon chain, confirmation is shorted electricity and shunts
Influence size of the state to direct current supply；
(2), by the manual control to regulator auto state, manually adjusting for silicon chain is realized；
(3), electrification short circuit is carried out to the monomer silicon to break down on rectifying and pressure-regulating silicon chain；
(4), the silicon chain monitoring side subsolution on voltage regulator controllers is opened, and stops its work；
(5), close female, the female open circuit allotted of control be spaced apart in respectively choose one group it is spare be spaced apart, and will close using shorting stub that female, control is female
It is spaced apart and carries out and connect, closes female, control mother and be spaced apart, directly failure silicon chain monomer is replaced after circuit is connected, direct current closes
Female, control mother charges always.
2. a kind of hotline maintenance method of direct current system regulator as described in claim 1, it is characterised in that: the step
(5) in, and the polarity of DC voltage has been confirmed before connecing.
3. a kind of hotline maintenance method of direct current system regulator as described in claim 1, it is characterised in that: the step
(5) in and wiring is 4Pin's or more and wiring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229701.8A CN106849027B (en) | 2016-12-27 | 2016-12-27 | A kind of hotline maintenance method of direct current system regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229701.8A CN106849027B (en) | 2016-12-27 | 2016-12-27 | A kind of hotline maintenance method of direct current system regulator |
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| Publication Number | Publication Date |
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| CN106849027A CN106849027A (en) | 2017-06-13 |
| CN106849027B true CN106849027B (en) | 2019-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611229701.8A Active CN106849027B (en) | 2016-12-27 | 2016-12-27 | A kind of hotline maintenance method of direct current system regulator |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107834413B (en) * | 2017-12-04 | 2023-06-27 | 国家电网公司 | Device for live replacement of protection device and live construction method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3697859A (en) * | 1971-05-21 | 1972-10-10 | Motorola Inc | Voltage regulator circuit for a brushless alternator |
| CN101841186A (en) * | 2010-04-28 | 2010-09-22 | 四川省电力公司广安电业局 | Automatic backup silicon chain switching device for direct-current system |
| CN201750182U (en) * | 2010-07-27 | 2011-02-16 | 上海一开电气集团有限公司 | Direct current power supply cabinet with voltage-reducing protection function |
| CN201830016U (en) * | 2010-10-09 | 2011-05-11 | 成都市雨田骏科技发展有限公司 | Automatic voltage regulation device with silicon chain breakage protection |
| CN102437640A (en) * | 2011-11-28 | 2012-05-02 | 武汉供电公司变电检修中心 | Movable overhauling power supply system special for direct-current screen |
| CN103683489A (en) * | 2013-12-06 | 2014-03-26 | 四川省华电成套设备有限公司 | Direct-current power source screen |
| CN104682374A (en) * | 2014-07-28 | 2015-06-03 | 四川省华电成套设备有限公司 | Multi-channel charging mode frequent open direct-current power supply screen |
-
2016
- 2016-12-27 CN CN201611229701.8A patent/CN106849027B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3697859A (en) * | 1971-05-21 | 1972-10-10 | Motorola Inc | Voltage regulator circuit for a brushless alternator |
| CN101841186A (en) * | 2010-04-28 | 2010-09-22 | 四川省电力公司广安电业局 | Automatic backup silicon chain switching device for direct-current system |
| CN201750182U (en) * | 2010-07-27 | 2011-02-16 | 上海一开电气集团有限公司 | Direct current power supply cabinet with voltage-reducing protection function |
| CN201830016U (en) * | 2010-10-09 | 2011-05-11 | 成都市雨田骏科技发展有限公司 | Automatic voltage regulation device with silicon chain breakage protection |
| CN102437640A (en) * | 2011-11-28 | 2012-05-02 | 武汉供电公司变电检修中心 | Movable overhauling power supply system special for direct-current screen |
| CN103683489A (en) * | 2013-12-06 | 2014-03-26 | 四川省华电成套设备有限公司 | Direct-current power source screen |
| CN104682374A (en) * | 2014-07-28 | 2015-06-03 | 四川省华电成套设备有限公司 | Multi-channel charging mode frequent open direct-current power supply screen |
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| CN106849027A (en) | 2017-06-13 |
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