CN202206125U - Portable protection device for electrification process after distribution system protection device failure - Google Patents
Portable protection device for electrification process after distribution system protection device failure Download PDFInfo
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- CN202206125U CN202206125U CN 201120288444 CN201120288444U CN202206125U CN 202206125 U CN202206125 U CN 202206125U CN 201120288444 CN201120288444 CN 201120288444 CN 201120288444 U CN201120288444 U CN 201120288444U CN 202206125 U CN202206125 U CN 202206125U
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- 238000000034 method Methods 0.000 title abstract description 8
- 238000005070 sampling Methods 0.000 claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims description 62
- 238000012545 processing Methods 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 5
- 208000032368 Device malfunction Diseases 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
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Abstract
The utility model relates to a portable protection device for electrification process after a distribution system protection device failure and an electrification process method thereof. The portable protection device comprises a current clip, a sampling module, a control module and a tripping relay, wherein the current clip is used for clamping on the connecting line between secondary side of a current transformer and a terminal strip; the sampling module is used for collecting the magnitude of the current on the current clip; the control module is connected with the output end of the sampling module; and the tripping relay is connected with the output end of the control module; the tripping relay is used for connecting a switch trip control loop. When the protection device malfunctions, the control module drives the tripping relay to connect with the switch trip control loop so as to make the portable protection device replace the protection device for temporarily putting into operation. A preliminary device interval corresponding to the failure protection device uses no power cut process, thus simplifying the working process, improving the work efficiency and not influencing the safe operation level for the power grid.
Description
Technical field
the utility model relates in a kind of distribution network systems, and the interim protective device that replaces is realized the portable protective device that does not have a power failure and move after the protective device fault.
Background technology
distribution system; Especially for 35KV and following electric pressure system; It is usually by transformer station; The 10kV/20kV/35kV output bus, a plurality of primary equipments of carry on bus that are connected with transformer station are formed at interval, in order to keep watch on and protect primary equipment ruuning situation at interval, the at interval corresponding protective device of each primary equipment; Protective device is in operation and self tends to occur following fault, like power panel fault, CPU board fault, open into leaving the plate fault, exchanging plate fault, sampling plate fault and liquid crystal board fault etc.
are present; After 35kV and the following electric pressure line protective devices fault; The concrete primary equipment that operating management department all needs earlier protective device to be protected is taked power down at interval; Then failed equipment being taked to disappear lacks or changes and handle, and the main cause of its power failure is for avoiding primary equipment unprotect operation after the protective device fault, and the potential power supply hidden danger that continues operation when a certain equipment interval unprotect is for when this interval outlet fault the time; The higher level protects overstep tripping, causes power supply area power failure in short-term or when long on a large scale.
are according to DL/T 584-2007; 3-110kV electric grid relay protection device moves the requirement of adjust regulation and State Grid Corporation of China's " power system relay protection device operational management regulation ", and any primary equipment all must not move under unshielded state.Mainly contain following shortcoming by the conventional treatment method that this requirement limited:
(1), need be to the operation that has a power failure at interval of the pairing primary equipment of failure protecting device, time and effort consuming, inefficiency;
(2), need have a power failure at interval to the pairing primary equipment of failure protecting device, if its power supply area in single power supply, then the power supply area power consumer must face the power failure risk, power supply enterprise faces liability for breach of contract equally;
(3), need have a power failure at interval to the pairing primary equipment of failure protecting device, if its be network system transformer station interconnection at interval, then power system operating mode is weak, the raising of electric power netting safe running risk.
Summary of the invention
the utility model purpose provides and a kind ofly can replace failure protecting device; The interim basic defencive function of realizing an operational outfit of failure protecting device institute correspondence, thus need not the portable protective device of taking power down that failure protecting device is handled to concrete primary equipment.
in order to achieve the above object; The technical scheme that the utility model adopted is: portable protective device is used in charged processing after a kind of distribution network systems protective device fault; A plurality of primary equipments that described distribution network systems comprises transformer station, be connected with transformer station output bus at interval, be used to keep watch on the protective device of corresponding primary equipment interval running status; Each described primary equipment comprises switch, current transformer, switch trip control loop at interval; Described current transformer primary side is associated with corresponding said switch outlet; Its secondary side is connected with protective device through terminal board; Described protective device output be connected with described switch trip control loop with output drive signal control said switch deciliter; Described portable protective device comprises the tripping relay that is used to clamp between said Current Transformer Secondary side and the terminal board electric current folder on the line, the sampling module that is used to gather size of current on the electric current folder, the control module that is connected with the sampling module output, is connected with the control module output; Described tripping relay is used for being connected with described switch trip control loop; When described protective device breaks down, described tripping relay drops under the driving of control module and being connected of switch trip control loop, so that portable protective device replaces described protective device to put into operation temporarily.
optimally, whether intact it also comprise being connected and be used to keep watch on said switch trip control loop tripping operation monitoring module between described control module output and the switch trip control loop.Further, described tripping operation monitoring module by close a relay, with close the relay normally closed contact buzzer that is connected that is in series and form.
are owing to adopt technique scheme; The utlity model has following advantage: the portable protective device of the utility model is after protective device breaks down; Because the pairing primary equipment of failure protecting device has been taked the processing that do not have a power failure at interval; Workflow is simplified, and operating efficiency is improved, and the electric power netting safe running level is unaffected.
Description of drawings
Accompanying drawing 1 has the distribution network systems schematic diagram of portable protective device for the utility model;
Accompanying drawing 2 is the terminal board wiring schematic diagram between current transformer and the protective device;
Accompanying drawing 3 is tripping operation monitor module circuit theory diagrams;
Wherein: 11, transformer; 12, main transformer switch; 13, bus; 21, switch; 22, current transformer; 23, terminal board; 3, protective device; 4, switch trip control loop; 5, portable protective device; 51, current clamp; 52, sampling module; 53, control module; 54, tripping relay; 55, tripping operation monitor module; 551, close a relay; 552, buzzer;
Embodiment
Below in conjunction with accompanying drawing, the preferred specific embodiment of the utility model is described:
distribution network systems as shown in Figure 1, it mainly is made up of substation level, primary equipment wall and protective device, wherein; Substation level mainly is made up of transformer 11, the main transformer switch 12, the bus 13 that are connected with transformer 11 outputs; The primary equipment wall comprises a plurality of, and its carry is on bus 13, and output is used for being connected to realize power supply with user load; Each primary equipment comprises the current transformer 22 that switch 21, primary side are connected with switch 21 outlets at interval; The secondary side of current transformer 22 is connected with protective device 3 through terminal board 23, between protective device 3 and switch 21, also is provided with switch trip control loop 4, in normal operation; The current signal of protective device 3 sample rate current instrument transformers 22; And compare with the setting current value, if electric current output is greater than setting value, then the work of driving switch tripping operation control loop is with the tripping operation of control switch 21.
are after protective device 3 self breaks down; Because primary equipment must have protection equipment to carry out Stateful Inspection and protection at interval; Otherwise when this line fault, will cause the expansion of accident by main transformer protection tripping operation; Therefore, the present invention provides a kind of portable protective device, and it can replace protective device temporarily after failed equipment breaks down; Make between current transformer 22, portable protective device 5, switch trip control loop 4, to form path, to realize control to switch 21.
described portable protective device 5 mainly is made up of current clamp 51, sampling module 52, control module 53, tripping relay 54, and described current clamp 51 is used at the corresponding protection device line of forceps major between current transformer 22 and terminal board 23 that break down.Described sampling module 52 is used to adopt the current value on the current clamp 51.Described control module 53 is used for the current value that receives is handled, and compares with the setting current value of setting.Described tripping relay 54 is used for being connected with switch trip control loop 4, between portable protective device 5 and switch trip control loop 4, forming the break-make road, thereby to switch 21 control of tripping.
In
present embodiment, portable protective device 5 also comprises tripping operation monitor module 55, described tripping operation monitor module 55 mainly by close a relay 551, with close the buzzer 552 that a relay 551 is in series and form, see shown in Figure 3.
described sampling module 52, control module 53, tripping relay 54 and tripping operation monitor module 55 are packaged into an instrument; It possesses input/output ports such as of ac input, program, definite value, switching value input, switching value output, DC power supply, abnormal alarm; Simple in structure, be convenient for carrying use.
Principle composition to portable protective device is illustrated above, will introduce its charged processing method below:
If certain primary equipment pairing protective device at interval breaks down, under the situation that need not have a power failure, carry out charged processing according to following steps:
(1), mancarried device is fed ac charging power supply, carry out fixed value adjusting;
(2), on the line between current transformer and the terminal board, with three pincerlike electric currents folders respectively pincers go into A, B, C three-phase protective electricity consumption streamline, the sampling circuit of mancarried device is introduced current signal;
(3), survey electric current with pincerlike phase meter and confirm that protective current correctly gets into mancarried device, the self-check of device program starts simultaneously;
(4), mancarried device tripping relay idle contact is inserted the switch trip control loop;
(5), primary equipment switch accumulation power supply is at interval stopped using;
(6), confirm that tripping operation pressing plate two ends on the mancarried device do not have the heteropolarity current potential after, drop into pressing plate, mancarried device gets into operating state;
(7), the tripping operation pressing plate of disabling faulty protective device and reclosing pressing plate;
(8), Current Transformer Secondary side protective current loop and measure current circuit short circuit and break off the brace in protective current loop on terminal board in will be at interval so that the current circuit of failure protecting device (referring to Fig. 2) out of service;
(9), failure protecting device is in dead status, can overhaul or change failure protecting device;
(10), failure protecting device carry out fixed value adjusting, transmission after disappearing and lacking again.Its correctness can be judged through tripping operation pressing plate and the monitoring of reclosing platen potential;
(11), recovery and protection current circuit and measure the brace of current circuit on terminal board, connect the corresponding short circuit sheet of running current instrument transformer secondary side, failure protecting device is introduced the equipment operation current signal after disappearing and lacking again;
(12), pressing plate is not recovered after having the heteropolarity current potential, recovery switch accumulation power supply, normally operation after failure protecting device disappears and lacks in measurement tripping operation, reclosing pressing plate two ends;
(13), portable protective device is out of service;
so far, the charged work of treatment after the protective device fault finishes.
Adopt above-mentioned processing method, the present invention has following advantage:
(1), because the pairing primary equipment of failure protecting device has been taked processings that do not have a power failure at interval, the workflow simplification has improved operating efficiency;
(2), because the pairing primary equipment of failure protecting device has been taked the processing that do not have a power failure at interval, its primary equipment power supply area user need not to face the power failure risk, power supply enterprise also need not to face liability for breach of contract;
(3), because the pairing primary equipment of failure protecting device has been taked processings that do not have a power failure at interval, 35kV of taking into account system transformer station and following electric pressure circuit need have the interconnector that is equipped with confession each other, then the electric power netting safe running level is unaffected;
(4), for protective device edition upgrading, power panel fault, CPU board fault, open into leaving the plate fault, exchanging most common failures such as plate fault, sampling plate fault, liquid crystal board fault; And protective device changes definite value; Processing all can not have a power failure; Significantly reduced owing to the influence of protective relaying device fault to the user, its economic benefit and social benefit are obvious.
Claims (3)
1. portable protective device is used in charged processing after the distribution network systems protective device fault; A plurality of primary equipments that described distribution network systems comprises transformer station, be connected with transformer station output bus at interval, be used to keep watch on the protective device of corresponding primary equipment interval running status; Each described primary equipment comprises switch, current transformer, switch trip control loop at interval; Described current transformer primary side is associated with corresponding said switch outlet; Its secondary side is connected with protective device through terminal board; Described protective device output be connected with described switch trip control loop with output drive signal control said switch deciliter; It is characterized in that: described portable protective device comprises the tripping relay that is used to clamp between said Current Transformer Secondary side and the terminal board electric current folder on the line, the sampling module that is used to gather size of current on the electric current folder, the control module that is connected with the sampling module output, is connected with the control module output; Described tripping relay is used for being connected with described switch trip control loop; When described protective device breaks down, described tripping relay drops under the driving of control module and being connected of switch trip control loop, so that portable protective device replaces described protective device to put into operation temporarily.
2. portable protective device is used in charged processing after the distribution network systems protective device fault according to claim 1, it is characterized in that: whether intact it also comprise being connected and be used to keep watch on said switch trip control loop tripping operation monitoring module between described control module output and the switch trip control loop.
3. portable protective device is used in charged processing after the distribution network systems protective device fault according to claim 2, it is characterized in that: described tripping operation monitoring module by close a relay, with close the buzzer that a relay normally closed contact is in series and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120288444 CN202206125U (en) | 2011-08-10 | 2011-08-10 | Portable protection device for electrification process after distribution system protection device failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120288444 CN202206125U (en) | 2011-08-10 | 2011-08-10 | Portable protection device for electrification process after distribution system protection device failure |
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| Publication Number | Publication Date |
|---|---|
| CN202206125U true CN202206125U (en) | 2012-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201120288444 Expired - Fee Related CN202206125U (en) | 2011-08-10 | 2011-08-10 | Portable protection device for electrification process after distribution system protection device failure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280864A (en) * | 2011-08-10 | 2011-12-14 | 江苏省电力公司苏州供电公司 | Post-failure live treatment method for protection device of distribution network system and portable protection device |
| CN103825259A (en) * | 2014-03-19 | 2014-05-28 | 江苏沙洲电气有限公司 | Relay protection system |
| CN109491295A (en) * | 2018-12-05 | 2019-03-19 | 岭澳核电有限公司 | Control system |
-
2011
- 2011-08-10 CN CN 201120288444 patent/CN202206125U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280864A (en) * | 2011-08-10 | 2011-12-14 | 江苏省电力公司苏州供电公司 | Post-failure live treatment method for protection device of distribution network system and portable protection device |
| CN102280864B (en) * | 2011-08-10 | 2014-04-23 | 江苏省电力公司苏州供电公司 | Post-failure live treatment method for protection device of distribution network system and portable protection device |
| CN103825259A (en) * | 2014-03-19 | 2014-05-28 | 江苏沙洲电气有限公司 | Relay protection system |
| CN103825259B (en) * | 2014-03-19 | 2017-09-08 | 江苏沙洲电气有限公司 | Relay protection system |
| CN109491295A (en) * | 2018-12-05 | 2019-03-19 | 岭澳核电有限公司 | Control system |
| CN109491295B (en) * | 2018-12-05 | 2020-06-16 | 岭澳核电有限公司 | Control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU ELECTRIC POWER COMPANY STATE GRID CORPORAT Effective date: 20121128 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121128 Address after: 215004 No. three Xiang Xiang Road, Suzhou, Jiangsu, 458 Patentee after: Suzhou Power Supply Co., Ltd. of Jiangsu Electric Power Company Patentee after: Jiangsu Electric Power Company Patentee after: State Grid Corporation of China Address before: 215004 No. three Xiang Xiang Road, Suzhou, Jiangsu, 458 Patentee before: Suzhou Power Supply Co., Ltd. of Jiangsu Electric Power Company |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20200810 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |