CN103248017A - 100-percent fast protection system and method for internal fault of switch cabinet - Google Patents
100-percent fast protection system and method for internal fault of switch cabinet Download PDFInfo
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- CN103248017A CN103248017A CN2013101782497A CN201310178249A CN103248017A CN 103248017 A CN103248017 A CN 103248017A CN 2013101782497 A CN2013101782497 A CN 2013101782497A CN 201310178249 A CN201310178249 A CN 201310178249A CN 103248017 A CN103248017 A CN 103248017A
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- 230000003287 optical effect Effects 0.000 claims description 8
- 230000000875 corresponding effect Effects 0.000 claims description 7
- 230000002596 correlated effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000002045 lasting effect Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 4
- 206010034703 Perseveration Diseases 0.000 description 3
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- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The invention provides a 100-percent fast protection system and method for internal fault of a switch cabinet. The 100-percent fast protection system comprises a main control unit, arc light relays, current units and arc light probes, wherein the arc light probes are divided into busbar protection probes and feeder line protection probes, the busbar protection probes comprise a group of busbar protection probes arranged in a step-down switch cabinet, a busbar chamber of a feeder line centrally installed switchgear, a PT cabinet, an isolation cabinet, a wire inlet cabinet and a busbar chamber of a bus-coupler cabinet respectively, the busbar protection probes are connected with the main control unit directly or through arc light units, the feeder line protection probes comprise feeder line protection probes arranged in a cable chamber and a switch gear chamber of the feeder line centrally installed switchgear respectively and feeder line protection probes arranged in a cable chamber and a switch chamber of the bus-coupler cabinet respectively, and the feeder line protection probes are connected with the main control unit through the arc light relays. The system and the method have the advantages that when each zone in the switch cabinet has a fault, 100-percent fast protection without dead zones can be realized, and the power failure scope is prevented from being broadened.
Description
Technical field:
The present invention relates to a kind of switch cubicle internal fault 100% rapid protection system and guard method, belong to fault and detect and the resist technology field.
Background technology:
Power system transformer substation mesolow switch cubicle bus-bar room, switch gear room and the CT of cable vault install and have no quick main protection defective with top; when breaking down, switch cubicle inside can only rely on backup protection excision fault; excision is long fault time; may cause switch cubicle blast, involve that direct current system, main transformer are subjected to close-in fault to impact serious consequences such as damage in the station.
In traditional bus protection, the reserve overcurrent protection is long operate time, can not play effective protective effect; Bus differential protection scope is subjected to the restriction of CT installation site, the wiring complexity, and CT requires high.
Arc protection is as a kind of novel bus protection, and its principle is simple, reliable in action rapid, adapt to various operational modes.But the arclight protection of part transformer station employing at present only can realize the quick main protection of switch cubicle bus-bar room; consider that for switch gear room, cable vault CT installs so that the lower part can the cell protection realization is quick to be protected by feeding out; consider generally not dispose the arc light monitoring point based on selectivity; but switch gear room, cable vault be the easy happening part of fault often, has protection configuration dead band.
Summary of the invention:
The objective of the invention is provides a kind of switch cubicle internal fault comprehensive rapid protecting device at the problem of above-mentioned existence; this system can not only realize traditional middle voltage bus bar protection; and the selectivity fast trip of the diverse location such as cable vault, switch gear room, bus-bar room that can realize the mid-cabinet of feeder line when breaking down; realize that 100% no dead band of switch cubicle internal fault protects fast, the extension of the scope of avoiding having a power failure.
Above-mentioned purpose realizes by following technical scheme:
Switch cubicle internal fault 100% rapid protection system; comprise main control unit; the arc light relay; current unit and arc probe; described arc probe is divided into bus protection probe and protection for feed line probe; described bus protection probe comprises and is installed in the step-down switch cubicle respectively; the bus-bar room of the mid-cabinet of feeder line; the PT cabinet; isolate cabinet; incoming line cabinet; one group of bus protection probe of the bus-bar room of female connection cabinet; described protection for feed line probe comprises the protection for feed line probe of the cable vault that is installed in the mid-cabinet of feeder line respectively and switch gear room and is installed in the protection for feed line probe of cable vault and the switch gear room of female connection cabinet respectively that described protection for feed line probe connects described main control unit by the arc light relay.
Described switch cubicle internal fault 100% rapid protection system, described bus protection probe directly or by the arc light unit inserts described main control unit.
Utilize above-mentioned protection system to carry out switch cubicle internal fault 100% method of protection fast; this method comprises: arc optical signal is detected in the subregion; adopt the selective protection method then, described selective protection method comprises protection for feed line method, bus bar protecting method, the guard method of female connection and incoming relay-protection method.
Described switch cubicle internal fault 100% is the method for protection fast, described subregion is detected arc optical signal and referred to switch cubicle inside is divided into bus protection zone and protection for feed line zone: the bus-bar room of the bus-bar room of step-down switch cubicle, the mid-cabinet of feeder line, PT cabinet, isolation cabinet, incoming line cabinet, female connection cabinet belongs to the bus protection zone, bus protection probe is installed, directly or by the described main control unit in arc light unit respectively; Cable vault and the switch gear room of the cable vault of the mid-cabinet of feeder line and switch gear room, female connection cabinet belong to the protection for feed line zone, and the protection for feed line probe is installed respectively, insert described arc light relay.
Described switch cubicle internal fault 100% is the method for protection fast, and described protection for feed line method refers at the mid-cabinet of each feeder line an arc light relay is installed, and this arc light relay is gathered the arc probe signal of installing in this cabinet cable vault, the switch gear room; Inlet wire current on the bus of related this feeder line of this arc light relay place and female connection electric current receive the correlated current action message from main control unit; When arc probe action and the action of associated electric current, arc light actuating of relay outlet, this feeder switch of tripping sends actuating signal to main control unit simultaneously; If main control unit detects the arc light actuating of relay of feeder line cabinet, and at the lasting existence of time-delay internal fault electric current of adjusting, then main control unit action outlet, tripping fault current place service entrance switch or bus connection switch.
Described switch cubicle internal fault 100% is the method for protection fast, and described bus bar protecting method refers to be associated in the arc probe that bus-bar room is installed electric power incoming line electric current and the bus connection switch electric current of this section bus direct correlation; When the arc probe action of bus-bar room, and associated electric power incoming line electric current or the action of bus connection switch electric current, main control unit action outlet, electric power incoming line switch or bus connection switch that tripping is associated.
Described switch cubicle internal fault 100% is the method for protection fast, and the guard method of described female connection is arc light relay of installing in mother joins cabinet, gathers the arc probe signal of installing in this cabinet switch gear room, the cable vault; The related female connection of this arc light relay both sides electric power incoming line electric current receives the correlated current action message from main control unit; When the action of arc light relay arc probe and the action of associated inlet wire current, arc light actuating of relay outlet, the tripping bus connection switch, and to main control unit transmission actuating signal; If main control unit detects the arc light actuating of relay of female connection cabinet, and fault current still exists after the time-delay of adjusting, then main control unit action outlet, tripping fault current place service entrance switch; The arc probe of installing on bus connection switch two side bus is associated to the bus connection switch electric current, when the action of dependence arc light probe and the action of bus connection switch electric current, and main control unit action outlet, tripping bus connection switch.
Described switch cubicle internal fault 100% is the method for protection fast, and described incoming relay-protection method is to be associated to this electric power incoming line electric current in the arc probe that incoming line cabinet is installed; When arc probe action and electric current action, main control unit action outlet is jumped the electric power incoming line switch, and is started corresponding failure protection; If after the malfunctioning startup, still there are then failure protection action outlet, the corresponding step down side switch of tripping at the time-delay internal fault electric current of adjusting.
Beneficial effect:
Produce the electric arc characteristics when the present invention breaks down according to switch cubicle inside, power supply point current break criterion constitutes the arc protection system during in conjunction with fault.Adopt the subregion to detect the arc optical signal technology, the selectivity tripping operation when the arc light relay by the feeder unit configuration and the cooperation of arc protection main control unit realize diverse location generation arc fault, the extension of the scope of avoiding having a power failure.
Description of drawings:
Fig. 1 is probe scheme of installation of the present invention.
Fig. 2 is system layout of the present invention.
Embodiment:
In order to elaborate technology contents of the present invention, especially exemplified by following examples.Especially, the system configuration of following examples only is based on a kind of way of realization of inventive concept, as long as in fact the version of any one switch cubicle can method according to the invention, equally can realize the present invention.
Embodiment 1:
As shown in Figure 1: switch cubicle internal fault 100% rapid protection system of the present invention; comprise main control unit; the arc light relay; current unit and arc probe; described arc probe is divided into bus protection probe and protection for feed line probe; described bus protection probe comprises and is installed in the step-down switch cubicle respectively; the bus-bar room of the mid-cabinet of feeder line; the PT cabinet; isolate cabinet; incoming line cabinet; one group of bus protection probe of the bus-bar room of female connection cabinet; described protection for feed line probe comprises the protection for feed line probe of the cable vault that is installed in the mid-cabinet of feeder line respectively and switch gear room and is installed in the protection for feed line probe of cable vault and the switch gear room of female connection cabinet respectively that described protection for feed line probe connects described main control unit by the arc light relay.
Described switch cubicle internal fault 100% rapid protection system, described bus protection probe directly or by the arc light unit inserts described main control unit.
Embodiment 2:
Utilize above-mentioned protection system to carry out switch cubicle internal fault 100% method of protection fast; this method comprises: arc optical signal is detected in the subregion; adopt the selective protection method then, described selective protection method comprises protection for feed line method, bus bar protecting method, the guard method of female connection and incoming relay-protection method.
Described switch cubicle internal fault 100% is the method for protection fast, described subregion is detected arc optical signal and referred to switch cubicle inside is divided into bus protection zone and protection for feed line zone: the bus-bar room of the bus-bar room of step-down switch cubicle, the mid-cabinet of feeder line, PT cabinet, isolation cabinet, incoming line cabinet, female connection cabinet belongs to the bus protection zone, bus protection probe is installed, directly or by the described main control unit in arc light unit respectively; Cable vault and the switch gear room of the cable vault of the mid-cabinet of feeder line and switch gear room, female connection cabinet belong to the protection for feed line zone, and the protection for feed line probe is installed respectively, insert described arc light relay.
Described switch cubicle internal fault 100% is the method for protection fast, and described protection for feed line method refers at the mid-cabinet of each feeder line an arc light relay is installed, and this arc light relay is gathered the arc probe signal of installing in this cabinet cable vault, the switch gear room; Inlet wire current on the bus of related this feeder line of this arc light relay place and female connection electric current receive the correlated current action message from main control unit; When arc probe action and the action of associated electric current, arc light actuating of relay outlet, this feeder switch of tripping sends actuating signal to main control unit simultaneously; If main control unit detects the arc light actuating of relay of feeder line cabinet, and at the lasting existence of time-delay internal fault electric current of adjusting, then main control unit action outlet, tripping fault current place service entrance switch or bus connection switch.
Described switch cubicle internal fault 100% is the method for protection fast, and described bus bar protecting method refers to be associated in the arc probe that bus-bar room is installed electric power incoming line electric current and the bus connection switch electric current of this section bus direct correlation; When the arc probe action of bus-bar room, and associated electric power incoming line electric current or the action of bus connection switch electric current, main control unit action outlet, electric power incoming line switch or bus connection switch that tripping is associated.
Described switch cubicle internal fault 100% is the method for protection fast, and the guard method of described female connection is arc light relay of installing in mother joins cabinet, gathers the arc probe signal of installing in this cabinet switch gear room, the cable vault; The related female connection of this arc light relay both sides electric power incoming line electric current receives the correlated current action message from main control unit; When the action of arc light relay arc probe and the action of associated inlet wire current, arc light actuating of relay outlet, the tripping bus connection switch, and to main control unit transmission actuating signal; If main control unit detects the arc light actuating of relay of female connection cabinet, and fault current still exists after the time-delay of adjusting, then main control unit action outlet, tripping fault current place service entrance switch; The arc probe of installing on bus connection switch two side bus is associated to the bus connection switch electric current, when the action of dependence arc light probe and the action of bus connection switch electric current, and main control unit action outlet, tripping bus connection switch.
Described switch cubicle internal fault 100% is the method for protection fast, and described incoming relay-protection method is to be associated to this electric power incoming line electric current in the arc probe that incoming line cabinet is installed; When arc probe action and electric current action, main control unit action outlet is jumped the electric power incoming line switch, and is started corresponding failure protection; If after the malfunctioning startup, still there are then failure protection action outlet, the corresponding step down side switch of tripping at the time-delay internal fault electric current of adjusting.
Fig. 2 is typical arc protection system layout.As shown in Figure 2, because left-right symmetric, below be that example is described further with mother I.
Arc optical signal is detected in the subregion, and as shown in Figure 2, probe 1, probe 2 belong to the bus protection category, insert main control unit.Probe 3, probe 4 belong to the protection for feed line category, insert corresponding feeder line arc light relay ArcRelay2 and ArcRelay1 respectively.
Selectivity tripping operation when the arc light relay by feeder unit configuration and the cooperation of arc protection main control unit realize diverse location generation arc fault.Suppose the female power supply of I, female joint bit.When each point broke down in the system, the behavior of this arc protection system acting was as follows:
1. feeder switch below F1 fault, probe 4 actions, the female inlet wire current action of I, arc light relay ArcRelay1 moves outlet, tripping switch BRK4, fault is cut;
2. feeder switch top F2 fault, probe 4 actions, the female inlet wire current action of I, arc light relay ArcRelay1 moves outlet, tripping switch BRK4, fault still exists.Main control unit is received arc light relay ArcRelay1 actuating signal, judges the female inlet wire current perseveration of I, time-delay tripping switch BRK2, and fault is cut;
3. F3 fault on the bus, probe 2 actions, the female inlet wire current action of I, main control unit tripping switch BRK2, fault is cut;
4. bus connection switch is away from mains side F4 fault, probe 3 actions, and the female inlet wire current action of I, arc light relay ArcRelay2 moves outlet, tripping switch BRK3, fault is cut;
5. the nearly mains side F5 of bus connection switch fault, probe 3 actions, the female inlet wire current action of I, arc light relay ArcRelay2 moves outlet, tripping switch BRK3, fault still exists; Main control unit is received the actuating signal of arc light relay ArcRelay2, judges the female inlet wire current perseveration of I, main control unit deferred action outlet, and tripping switch BRK2, fault is cut;
6. incoming line cabinet switch below F6 fault, probe 1 action, the female inlet wire current action of I, main control unit action outlet, tripping switch BRK2, fault is cut;
7. incoming line cabinet switch top F7 fault, probe 1 action, the female inlet wire current action of I, main control unit action outlet, tripping switch BRK2, fault still exists; Failure protection is judged the female inlet wire current perseveration of I, main control unit failure protection deferred action outlet, and tripping switch BRK1, fault is cut;
8. F8 fault on the bus, probe 5 actions, the action of bus connection switch electric current, main control unit action outlet, tripping switch BRK3, fault is cut;
The disclosed technological means of the present invention program is not limited only to the disclosed technological means of above-mentioned technological means, also comprises by above technical characterictic being equal to the technical scheme that replacement is formed.Unaccomplished matter of the present invention belongs to those skilled in the art's common practise.
Claims (8)
1. switch cubicle internal fault 100% rapid protection system; it is characterized in that: comprise main control unit; the arc light relay; current unit and arc probe; described arc probe is divided into bus protection probe and protection for feed line probe; described bus protection probe comprises and is installed in the step-down switch cubicle respectively; the bus-bar room of the mid-cabinet of feeder line; the PT cabinet; isolate cabinet; incoming line cabinet; one group of bus protection probe of the bus-bar room of female connection cabinet; described protection for feed line probe comprises the protection for feed line probe of the cable vault that is installed in the mid-cabinet of feeder line respectively and switch gear room and is installed in the protection for feed line probe of cable vault and the switch gear room of female connection cabinet respectively that described protection for feed line probe connects described main control unit by the arc light relay.
2. switch cubicle internal fault 100% rapid protection system according to claim 1 is characterized in that: described bus protection probe directly or by the arc light unit inserts described main control unit.
3. one kind is utilized above-mentioned protection system to carry out switch cubicle internal fault 100% method of protection fast; it is characterized in that: this method comprises: arc optical signal is detected in the subregion; adopt the selective protection method then, described selective protection method comprises protection for feed line method, bus bar protecting method, the guard method of female connection and incoming relay-protection method.
4. switch cubicle internal fault according to claim 3 100% method of protection fast, it is characterized in that: described subregion is detected arc optical signal and referred to switch cubicle inside is divided into bus protection zone and protection for feed line zone: the bus-bar room of the bus-bar room of step-down switch cubicle, the mid-cabinet of feeder line, PT cabinet, isolation cabinet, incoming line cabinet, female connection cabinet belongs to the bus protection zone, bus protection probe is installed, directly or by the described main control unit in arc light unit respectively; Cable vault and the switch gear room of the cable vault of the mid-cabinet of feeder line and switch gear room, female connection cabinet belong to the protection for feed line zone, and the protection for feed line probe is installed respectively, insert described arc light relay.
5. according to claim 3 or the 4 described switch cubicle internal faults 100% quick methods of protecting, it is characterized in that: described protection for feed line method refers at the mid-cabinet of each feeder line an arc light relay is installed, and this arc light relay is gathered the arc probe signal of installing in this cabinet cable vault, the switch gear room; Inlet wire current on the bus of related this feeder line of this arc light relay place and female connection electric current receive the correlated current action message from main control unit; When arc probe action and the action of associated electric current, arc light actuating of relay outlet, this feeder switch of tripping sends actuating signal to main control unit simultaneously; If main control unit detects the arc light actuating of relay of feeder line cabinet, and at the lasting existence of time-delay internal fault electric current of adjusting, then main control unit action outlet, tripping fault current place service entrance switch or bus connection switch.
6. according to the method for claim 3 or 4 described switch cubicle internal faults 100% quick protections, it is characterized in that: described bus bar protecting method refers to be associated in the arc probe that bus-bar room is installed electric power incoming line electric current and the bus connection switch electric current of this section bus direct correlation; When the arc probe action of bus-bar room, and associated electric power incoming line electric current or the action of bus connection switch electric current, main control unit action outlet, electric power incoming line switch or bus connection switch that tripping is associated.
7. according to claim 3 or the 4 described switch cubicle internal faults 100% quick methods of protecting, it is characterized in that: the guard method of described female connection is arc light relay of installing in mother joins cabinet, gathers the arc probe signal of installing in this cabinet switch gear room, the cable vault; The related female connection of this arc light relay both sides electric power incoming line electric current receives the correlated current action message from main control unit; When the action of arc light relay arc probe and the action of associated inlet wire current, arc light actuating of relay outlet, the tripping bus connection switch, and to main control unit transmission actuating signal; If main control unit detects the arc light actuating of relay of female connection cabinet, and fault current still exists after the time-delay of adjusting, then main control unit action outlet, tripping fault current place service entrance switch; The arc probe of installing on bus connection switch two side bus is associated to the bus connection switch electric current, when the action of dependence arc light probe and the action of bus connection switch electric current, and main control unit action outlet, tripping bus connection switch.
8. according to the method for claim 3 or 4 described switch cubicle internal faults 100% quick protections, it is characterized in that: described incoming relay-protection method is to be associated to this electric power incoming line electric current in the arc probe that incoming line cabinet is installed; When arc probe action and electric current action, main control unit action outlet is jumped the electric power incoming line switch, and is started corresponding failure protection; If after the malfunctioning startup, still there are then failure protection action outlet, the corresponding step down side switch of tripping at the time-delay internal fault electric current of adjusting.
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| CN201310178249.7A CN103248017B (en) | 2013-05-15 | 2013-05-15 | Internal faults of switch cabinet 100% rapid protection system and guard method |
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| CN201310178249.7A CN103248017B (en) | 2013-05-15 | 2013-05-15 | Internal faults of switch cabinet 100% rapid protection system and guard method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104052158A (en) * | 2014-06-23 | 2014-09-17 | 南京南瑞继保电气有限公司 | Relay protection method and device for dead zone faults in switch cabinet |
| CN104377582A (en) * | 2014-11-25 | 2015-02-25 | 辽宁电能发展股份有限公司 | Box-type substation |
| CN104993461A (en) * | 2015-06-23 | 2015-10-21 | 江苏金智科技股份有限公司 | Relay protection device providing electric arc light protection function |
| CN105977927A (en) * | 2016-07-05 | 2016-09-28 | 国家电网公司 | Arc protection system and method having selective trip-out function |
| CN109038472A (en) * | 2018-08-10 | 2018-12-18 | 江苏南能电气有限公司 | A kind of photovoltaic box type transformer arc light protecting device |
| CN109066601A (en) * | 2018-08-24 | 2018-12-21 | 南京南瑞继保电气有限公司 | A kind of middle-low voltage switch cabinet arc light protection method and system and arc light acquisition unit |
| CN109802369A (en) * | 2019-01-24 | 2019-05-24 | 中广核研究院有限公司 | A kind of atomic-powered ship intermediate voltage electric power system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201590653U (en) * | 2009-12-25 | 2010-09-22 | 杭州瑞胜电气有限公司 | Photoelectric arc light protection system |
| CN201601480U (en) * | 2009-12-31 | 2010-10-06 | 南京弘毅电气自动化有限公司 | Arc light protecting system |
| CN201608515U (en) * | 2010-02-01 | 2010-10-13 | 保定天威恒通电气有限公司 | Electric arc light protecting system for feeder cable in switch cabinet |
| CN201629565U (en) * | 2010-02-10 | 2010-11-10 | 保定天威恒通电气有限公司 | Switch cabinet arc light protection system with compact structure |
| CN102025131A (en) * | 2010-12-03 | 2011-04-20 | 铜川供电局 | Arc light monitoring and protecting system |
| CN203261015U (en) * | 2013-05-15 | 2013-10-30 | 南京弘毅电气自动化有限公司 | One-hundred-percent rapid protection system for internal fault of switch cabinet |
-
2013
- 2013-05-15 CN CN201310178249.7A patent/CN103248017B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201590653U (en) * | 2009-12-25 | 2010-09-22 | 杭州瑞胜电气有限公司 | Photoelectric arc light protection system |
| CN201601480U (en) * | 2009-12-31 | 2010-10-06 | 南京弘毅电气自动化有限公司 | Arc light protecting system |
| CN201608515U (en) * | 2010-02-01 | 2010-10-13 | 保定天威恒通电气有限公司 | Electric arc light protecting system for feeder cable in switch cabinet |
| CN201629565U (en) * | 2010-02-10 | 2010-11-10 | 保定天威恒通电气有限公司 | Switch cabinet arc light protection system with compact structure |
| CN102025131A (en) * | 2010-12-03 | 2011-04-20 | 铜川供电局 | Arc light monitoring and protecting system |
| CN203261015U (en) * | 2013-05-15 | 2013-10-30 | 南京弘毅电气自动化有限公司 | One-hundred-percent rapid protection system for internal fault of switch cabinet |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104052158A (en) * | 2014-06-23 | 2014-09-17 | 南京南瑞继保电气有限公司 | Relay protection method and device for dead zone faults in switch cabinet |
| CN104377582A (en) * | 2014-11-25 | 2015-02-25 | 辽宁电能发展股份有限公司 | Box-type substation |
| CN104993461A (en) * | 2015-06-23 | 2015-10-21 | 江苏金智科技股份有限公司 | Relay protection device providing electric arc light protection function |
| CN104993461B (en) * | 2015-06-23 | 2017-11-28 | 江苏金智科技股份有限公司 | A kind of protective relaying device that electric arc protection function is provided |
| CN105977927A (en) * | 2016-07-05 | 2016-09-28 | 国家电网公司 | Arc protection system and method having selective trip-out function |
| CN105977927B (en) * | 2016-07-05 | 2024-02-23 | 国家电网公司 | Arc light protection system and method with selective tripping function |
| CN109038472A (en) * | 2018-08-10 | 2018-12-18 | 江苏南能电气有限公司 | A kind of photovoltaic box type transformer arc light protecting device |
| CN109066601A (en) * | 2018-08-24 | 2018-12-21 | 南京南瑞继保电气有限公司 | A kind of middle-low voltage switch cabinet arc light protection method and system and arc light acquisition unit |
| CN109802369A (en) * | 2019-01-24 | 2019-05-24 | 中广核研究院有限公司 | A kind of atomic-powered ship intermediate voltage electric power system |
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| CN103248017B (en) | 2015-12-23 |
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