CN202004325U - Secondary schematic wiring diagram of bus-tie cabinet - Google Patents
Secondary schematic wiring diagram of bus-tie cabinet Download PDFInfo
- Publication number
- CN202004325U CN202004325U CN2010206952937U CN201020695293U CN202004325U CN 202004325 U CN202004325 U CN 202004325U CN 2010206952937 U CN2010206952937 U CN 2010206952937U CN 201020695293 U CN201020695293 U CN 201020695293U CN 202004325 U CN202004325 U CN 202004325U
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- bus
- bus tie
- wiring diagram
- relay
- switch
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Abstract
The utility model relates to a secondary schematic wiring diagram of a bus-tie cabinet. Intermediate relays are installed in the closing control loop and the opening control loop of a bus tie switch. When the power of one bus section is failed or is cut off for repair and the bus tie switch is used for supplying power to another bus section, the closing control loop of the bus tie switch is required to be electrified first and then a closing/opening button can be pushed down to close a bus tie circuit breaker. Two intermediate relays are used in the wiring diagram, wherein the coil of one intermediate relay is bridged over the A-phase and the N-phase of a pile head at one end of the bus tie circuit breaker; and the coil of the other intermediate relay is bridged over the A-phase and the N-phase of a pile head at the other end of the bus tie circuit breaker. Through the secondary schematic wiring diagram, by using the two intermediate relays to realize the power switching of the bus tie switch, the power switching line of the bus tie switch is safer and more reliable. Since the auxiliary contact and the fault alarm contact of the bus tie circuit breaker are connected with a digital display meter and are simultaneously connected with a terminal, two kinds of requirements of the communication user field of a weak-current system can be met.
Description
Technical field
The utility model relates to female connection cabinet technical field, and particularly a kind of usefulness two mother that a relay realizes that the power supply of female connection cabinet switches that merely hits joins cabinet secondary key wiring diagram.Bus auxiliary contact and fault alarm contact connect digital display meter, and upper terminal can satisfy two kinds of requirements at weak electricity system communication user scene simultaneously.
Background technology
There is the phenomenon of voltage fluctuation, flickering, instant cut-off inevitably in electric power system, even the time of system voltage fluctuation, flickering, instant cut-off is very short, sometimes also can cause the tripping operation of user's distribution system 0.4kV low-pressure side inlet wire main circuit breaker decompression, cause the 0.4kV bussed supply of user's distribution system to interrupt.Generation for fear of above-mentioned situation, the more employing sectionalized single busbar connection of electric power system system, at user 0.4kv low pressure master inlet wire frame-type circuit breaker switch no-voltage trip mode, make fault side dump, can cut off non-important load, mother is joined manually (or hauling oneself willingly into) mode measure switching of frame-type circuit breaker switch, so just guaranteed the continuous power supply of system.
Electric power system is as adopting the mode of connection of sectionalized single busbar connection, and when its purposes was normal power supply, female connection cabinet center posture circuit breaker was in gate-dividing state, respectively confesses one section bus by two service entrance switchs; When one section busbar fault or interruption maintenance, can close a floodgate by female connection cabinet switch, be faulty section or maintenance section load or important load power supply, to guarantee power supply reliability: the effect of the female connection of low pressure cabinet also when one tunnel power transformation device has fault or has a power failure female connection cabinet manually (or automatically) close a floodgate and give for other several dishes.The effect of the female connection of low pressure cabinet also in order to give the power supply of one, two class low-voltage loads, guarantees the continuity of power supply.
The combined floodgate control loop installing auxiliary relay of bus connection switch, when one section power supply has fault or interruption maintenance to use bus connection switch to another section bussed supply, the combined floodgate control loop of bus connection switch must earlier chargedly just can be pressed the switch knob bus switch that closes, this just requires the combined floodgate control loop of which section bus dead electricity bus connection switch no matter must all can the hot line job control loop by the conversion of auxiliary relay contact, guarantees not cutting off the power supply of system.
The utility model content
At the problems referred to above, main purpose of the present utility model be to provide a kind of usefulness two to merely hit a mother that a relay realizes that the power supply of female connection cabinet switches joins cabinet secondary key wiring diagram.Bus auxiliary contact and fault alarm contact connect digital display meter, and upper terminal can satisfy two kinds of requirements at weak electricity system communication user scene simultaneously.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of bus connection switch cabinet secondary key wiring diagram, described winding diagram comprises the combined floodgate control loop installing auxiliary relay of bus connection switch, described winding diagram is selected two relay of merely hitting for use, and wherein a relay coil cross-over connection of merely hitting is alternate with N mutually in the A of bus one end pile crown; Another auxiliary relay coil crossover is alternate with N mutually in the A of bus other end pile crown.
In specific embodiment of the utility model, described winding diagram adopts two relay of merely hitting to realize that the power supply of bus connection switch switches; Bus auxiliary contact and fault alarm contact connect digital display meter, and upper terminal satisfies two kinds of requirements at weak electricity system communication user scene simultaneously.
Positive progressive effect of the present utility model is: the mother that the utility model provides joins cabinet secondary key wiring diagram following advantage: the utility model increases auxiliary relay by the wiring of secondary principle, promptly adopts two relay of merely hitting to realize that the power supply of female connection cabinet switches.Make the power supply circuit switched safety and reliability of female connection cabinet! The combined floodgate control loop of bus connection switch all can be charged by the conversion of auxiliary relay contact when one merely hits a relay fault, promptly guarantees the charged equal may command bus connection switch of pile crown about bus connection switch no matter, do not influence the continuity of power supply.Bus auxiliary contact and fault alarm contact connect digital display meter, and upper terminal can satisfy two kinds of requirements at weak electricity system communication user scene simultaneously.
Description of drawings
Fig. 1 is a major loop schematic diagram of the present utility model.
Fig. 2 is a secondary control principle schematic diagram of the present utility model.
Fig. 3 is that secondary of the present utility model is measured the digital display meter schematic diagram.
Fig. 4 is a secondary terminal schematic diagram of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.Fig. 1 is a major loop winding diagram of the present utility model.Fig. 2 is a secondary control principle schematic diagram of the present utility model.When only one section (or two sections) bus bar side fault or interruption maintenance, L11, L12, L13, N1 (or L21, L22, L23, N2) and auxiliary relay coil 1KA (or 2KA) dead electricity, auxiliary relay coil 2KA (or 1KA) is charged, its auxiliary contact corresponding actions, loop wire size 1 point, 2 invocation points, separating brake indicator light HG lights, the motor of bus energy storage simultaneously MCH starts working, and sending sound, to carry out energy storage be that bus closes a floodgate and prepares.Press switch knob SBG, by one section of interlocking contact (or two sections) bus bar side dead electricity, 1# (or 2#) incoming line cabinet switch contact is normally closed point, closing coil XF gets, bus closes a floodgate, power supply is transported to one section (or two sections) bus-bar system from two sections (or one section) buses, and separating brake indicator light HG switches to combined floodgate indicator light HR at once on the cabinet door at this moment, and combined floodgate indicator light HR lights.When pressing opening button SBR, switching winding MX gets electric, the bus separating brake, and combined floodgate indicator light HR switches to separating brake indicator light HG again on the cabinet door at this moment, and separating brake indicator light HG lights.The equal upper terminal of interlocking contact QF2.3 is used for the electrical interlock of two lead-in circuit breakers and a bus.
Fig. 3 is that secondary of the present utility model is measured the digital display meter schematic diagram.Working power AC220V need insert 11 of digital display meter PM, 12 wiring points, the voltage signal of system inserts 1 to 4 wiring point of digital display meter PM, current signal inserts 5 to 10 wiring points of digital display meter PM, digital display meter PM on this moment cabinet door is shows system voltage only, when bus closes a floodgate the digital display meter PM display system current value on the cabinet door etc.Bus auxiliary contact OF4 and fault alarm contact SDE1 thereof are connected to 18 to 20 wiring points of digital display meter, and communication port RS485-1 that then can be by digital display meter is from the state of distant place read switch and the parameter of system.
Fig. 4 is a secondary terminal schematic diagram of the present utility model.Terminal 1 to 5 wiring point is a testing terminal, be used for verification digital display meter PM, terminal 10 to 17 wiring points can supply terminal block, two lead-in circuit breakers of realization system and the electrical interlock of a bus, promptly can only close wherein two circuit breakers simultaneously at any situation two lead-in circuit breakers and a bus. terminal 21 to 23 wiring points are weak electricity system communication acquisition contact, can realize that communication port RS485-1 by digital display meter is from the state of distant place read switch and the parameter of system.Terminal 29 to 32 wiring points can be according to the wiring of user's needs, when weak electricity system communication contact needs bus auxiliary contact OF4 and fault alarm contact SDE1 to be dry contact output, 18 to 20 wiring points that show table can be disconnected, to satisfy user's dry contact output requirement.
More than demonstration and description is basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. a mother joins cabinet secondary key wiring diagram, described winding diagram comprises the combined floodgate control loop installing auxiliary relay of bus connection switch, described winding diagram is selected two relay of merely hitting for use, and wherein a relay coil cross-over connection of merely hitting is alternate with N mutually in the A of bus one end pile crown; Another auxiliary relay coil crossover is alternate with N mutually in the A of bus other end pile crown.
2. female connection cabinet secondary key wiring diagram according to claim 1 is characterized in that: described winding diagram adopts two relay of merely hitting to realize that the power supply of bus connection switch switches; Bus auxiliary contact and fault alarm contact connect digital display meter, and upper terminal satisfies two kinds of requirements at weak electricity system communication user scene simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206952937U CN202004325U (en) | 2010-12-30 | 2010-12-30 | Secondary schematic wiring diagram of bus-tie cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206952937U CN202004325U (en) | 2010-12-30 | 2010-12-30 | Secondary schematic wiring diagram of bus-tie cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202004325U true CN202004325U (en) | 2011-10-05 |
Family
ID=44707052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206952937U Expired - Lifetime CN202004325U (en) | 2010-12-30 | 2010-12-30 | Secondary schematic wiring diagram of bus-tie cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202004325U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762592A (en) * | 2014-01-22 | 2014-04-30 | 中山市明阳电器有限公司 | Three-incoming-line two-interconnection power distribution system |
| CN105006881A (en) * | 2015-07-06 | 2015-10-28 | 山东鲁亿通智能电气股份有限公司 | Automatic put and automatic recovery control system |
| CN108879626A (en) * | 2018-07-23 | 2018-11-23 | 石狮市电力工程有限责任公司 | The anti-switch false switching circuit of one kind and power supply line |
-
2010
- 2010-12-30 CN CN2010206952937U patent/CN202004325U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762592A (en) * | 2014-01-22 | 2014-04-30 | 中山市明阳电器有限公司 | Three-incoming-line two-interconnection power distribution system |
| CN105006881A (en) * | 2015-07-06 | 2015-10-28 | 山东鲁亿通智能电气股份有限公司 | Automatic put and automatic recovery control system |
| CN105006881B (en) * | 2015-07-06 | 2018-11-09 | 山东鲁亿通智能电气股份有限公司 | One kind hauling oneself willingly into runback control system |
| CN108879626A (en) * | 2018-07-23 | 2018-11-23 | 石狮市电力工程有限责任公司 | The anti-switch false switching circuit of one kind and power supply line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111005 |
|
| CX01 | Expiry of patent term |