CN208001183U - Backup auto-activating device and system - Google Patents

Backup auto-activating device and system Download PDF

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Publication number
CN208001183U
CN208001183U CN201820463094.XU CN201820463094U CN208001183U CN 208001183 U CN208001183 U CN 208001183U CN 201820463094 U CN201820463094 U CN 201820463094U CN 208001183 U CN208001183 U CN 208001183U
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China
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voltage
under
contact
relay
phase
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CN201820463094.XU
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Chinese (zh)
Inventor
王路阳
肖扬
穆金龙
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Henan Senyuan Electric Co Ltd
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Henan Senyuan Electric Co Ltd
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Abstract

The utility model is related to backup auto-activating device and systems, first under-voltage detection module is set between the first phase and the second phase, second under-voltage detection module is set between the second phase and third phase, the voltage condition between the first phase and the second phase is detected by the first under-voltage detection module, the voltage condition between the second phase and third phase is detected by the second under-voltage detection module, when the first under-voltage detection module and/or the second under-voltage detection module detect undervoltage condition, it is i.e. arbitrary two it is alternate occur it is under-voltage when, prepared auto restart is carried out with regard to control, another way regular link is set to give tripping dead electricity section power supply, ensure when certain section of line fault dead electricity that other transmission line circuits can normal operation, improve the stability and reliability of distribution system.

Description

Backup auto-activating device and system
Technical field
The utility model is related to backup auto-activating device and systems.
Background technology
In low-voltage power supply system now, usual power supply uses the power supply mode of two inlet wires, one mother, such as Fig. 1 institutes Show, when a certain section of power supply system of low pressure inlet wire breaks down, can reliably quickly put into interconnection switch be to ensure power supply not The key of interruptedly supplying power, it is general that backup auto-activating device is selected to control the switching of power supply, but backup auto-activating device is expensive, Volume is big, the excessive space of occupancy power distribution cabinet, and the prepared auto restart circuit of simple economy, is increasingly being application.
A kind of backup auto-activating device is disclosed in the Chinese patent document that Authorization Notice No. is CN203135568U, prepared auto restart Putting into logic is:When busbar voltage is down to 60%, into prepared auto restart.The backup auto-activating device, which uses, directly judges busbar voltage Mode carries out prepared auto restart control, does not provide relevant detection device and its detection mode, moreover, only according to busbar voltage The voltage range of satisfaction carries out prepared auto restart, and the voltage relationship being not bound between three-phase alternating voltage carries out busbar voltage judgement, It can not reflect that the voltage relationship between three-phase alternating voltage, reliability be not high.
Utility model content
The purpose of this utility model is to provide a kind of backup auto-activating device, to solve the electricity met only according to busbar voltage Range is pressed to carry out prepared auto restart, the not high problem of reliability.The utility model provides a kind of spare power automatic switching system simultaneously.
To achieve the above object, the utility model includes following technical scheme.
A kind of backup auto-activating device, three-phase electricity are divided into the first phase, the second phase and third phase, and backup auto-activating device includes under-voltage detection Part and prepared auto restart control module for controlling prepared auto restart combined floodgate, the under-voltage detection part are included at least for being arranged the The first under-voltage detection module between one phase and the second phase and the second under-voltage inspection for being arranged between the second phase and third phase Module is surveyed, the first under-voltage detection module and the output of the second under-voltage detection module connect the prepared auto restart control module, when the When one under-voltage detection module detects that under-voltage and/or the second under-voltage detection module detects under-voltage, the control of prepared auto restart control module Prepared auto restart.
The voltage condition between the first phase and the second phase is detected by the first under-voltage detection module, passes through the second under-voltage detection Module detects the voltage condition between the second phase and third phase, when the first under-voltage detection module and/or the second under-voltage detection module When detecting undervoltage condition, it can be understood as it is arbitrary two it is alternate occur it is under-voltage when, just control progress prepared auto restart, keep another way normal Circuit to tripping dead electricity section power supply, it is ensured that when certain section of line fault dead electricity other transmission line circuits can normal operation, improve power distribution system The stability and reliability of system.
Further, the described first under-voltage detection module is the control coil of first voltage relay, and described second is under-voltage Detection module is the control coil of second voltage relay, the contact of the first voltage relay and second voltage relay Contact output connects the prepared auto restart control module.Voltage status, Neng Goujian are detected using the operating principle of voltage relay Singly effectively realize voltage detecting.
Further, the prepared auto restart control module includes two controlling branchers, and the first controlling brancher is intermediate relay Power supply branch, the connection line that the contact of the contact of the first voltage relay and second voltage relay is constituted with it is described The control coil string of intermediate relay is located on first controlling brancher, and the second controlling brancher is the control branch of prepared auto restart switch Road, the control coil of the prepared auto restart switch and the contact string of the intermediate relay are located on second controlling brancher.
Further, the contact series of the contact of the first voltage relay and second voltage relay setting constitutes institute Connection line is stated, the contact of the first voltage relay and the contact of second voltage relay are normally opened contact, the centre The contact of relay is normally-closed contact.
Further, the contact of the intermediate relay is arranged in parallel with a switch knob.It can by switch knob Realize artificial prepared auto restart control.
A kind of spare power automatic switching system, including the first busbar, the second busbar, backup auto-activating device and the first busbar and the second busbar Between prepared auto restart switch, three-phase electricity is divided into the first phase, the second phase and third phase, and the backup auto-activating device includes under-voltage test section Divide and the prepared auto restart control module for controlling prepared auto restart combined floodgate, the under-voltage detection part are included at least for being arranged first Mutually the first under-voltage detection module between the second phase and the second under-voltage detection for being arranged between the second phase and third phase Module, the first under-voltage detection module and the second under-voltage detection module output connect the prepared auto restart control module, described standby It hauls oneself willingly into control module control and connects the prepared auto restart switch, when the first under-voltage detection module detects that under-voltage and/or second is under-voltage When detection module detects under-voltage, prepared auto restart control module controls prepared auto restart.
Further, the described first under-voltage detection module is the control coil of first voltage relay, and described second is under-voltage Detection module is the control coil of second voltage relay, the contact of the first voltage relay and second voltage relay Contact output connects the prepared auto restart control module.
Further, the prepared auto restart control module includes two controlling branchers, and the first controlling brancher is intermediate relay Power supply branch, the connection line that the contact of the contact of the first voltage relay and second voltage relay is constituted with it is described The control coil string of intermediate relay is located on first controlling brancher, and the second controlling brancher is the control branch of prepared auto restart switch Road, the control coil of the prepared auto restart switch and the contact string of the intermediate relay are located on second controlling brancher.
Further, the contact series of the contact of the first voltage relay and second voltage relay setting constitutes institute Connection line is stated, the contact of the first voltage relay and the contact of second voltage relay are normally opened contact, the centre The contact of relay is normally-closed contact.
Further, the contact of the intermediate relay is arranged in parallel with a switch knob.
Description of the drawings
Fig. 1 is the power supply system figure of two inlet wires, one mother;
Fig. 2 is the arrangement schematic diagram of voltage relay;
Fig. 3 is prepared auto restart linear quadratic control schematic diagram.
Specific implementation mode
Spare power automatic switching system embodiment
The present embodiment provides a kind of spare power automatic switching system, including the first busbar, the second busbar and the first busbar and second female Prepared auto restart switch between line, as a specific embodiment, as shown in Figure 1, the first busbar corresponds to incoming line cabinet L01, second Busbar corresponds to incoming line cabinet L10, and prepared auto restart switch is arranged in getting in touch with cabinet L05, and QF is corresponding breaker in each cabinet.This part Belong to routine techniques, just no longer illustrates here.
System further includes backup auto-activating device, is controlled for prepared auto restart.The backup auto-activating device includes two under-voltage detection modules, First under-voltage detection module is arranged between A phases and B phases, and the second under-voltage detection module is arranged between B phases and C phases.Due to A, B, only phase is different between the voltage of C three-phases, and therefore, three-phase is divided into the first phase, the second phase by the principle based on equivalent replacement And third phase, then, the first under-voltage detection module is not limited to be arranged between A phases and B phases, the second under-voltage detection module not office It is limited to be arranged between B phases and C phases, but the first under-voltage detection module is substantially arranged between the first phase and the second phase, the Two under-voltage detection modules are arranged between the second phase and third phase.First phase, the second phase and third phase difference corresponding A, B, C three-phase In a wherein phase, it is not unique specific corresponding to relationship.
Backup auto-activating device further includes prepared auto restart control module, the first under-voltage detection module and the second under-voltage detection module output The prepared auto restart control module is connected, prepared auto restart control module control connection prepared auto restart switch, according to the first under-voltage detection module Prepared auto restart control is realized with the voltage status detection signal of the second under-voltage detection module, when the voltage status between A phases and B phases is When voltage status between under-voltage condition and/or B phases and C phases is under-voltage condition, i.e., the first under-voltage detection module detects under-voltage When signal and/or the second under-voltage detection module detect under-voltage signal, prepared auto restart control module controls prepared auto restart switch motion, real Existing prepared auto restart.In addition, prepared auto restart switch can be inherently existing equipment in circuit, can also be one of backup auto-activating device Component part.
In the present embodiment, under-voltage signal is detected by voltage relay, further, voltage relay is under-voltage relay Device, i.e., the first under-voltage detection module and the second under-voltage detection module are undervoltage relay.So, the first under-voltage detection module It is exactly the control coil of first voltage relay, the second under-voltage detection module is exactly the control coil of second voltage relay, such as Shown in Fig. 2, first voltage relay is voltage relay 11YJ, and second voltage relay is voltage relay 12YJ.And voltage The contact of relay 11YJ and the contact output connection prepared auto restart control module of voltage relay 12YJ.Based on voltage relay Operation principle realizes under-voltage detection.
Prepared auto restart control module can be control chip, realize prepared auto restart control according to software control procedure, can also be Specific control circuit realizes prepared auto restart control by hardware circuit connection relation.In the present embodiment, prepared auto restart control module is Hardware circuit.Prepared auto restart control module includes two controlling branchers, and the first controlling brancher is the power supply branch of intermediate relay 1ZJ Road, in the present embodiment, the power supply which is connected is A phases and C phases, as shown in Fig. 2, during power supply branch road string is equipped with Between the control coil of relay 1ZJ, voltage relay 11YJ contact and voltage relay 12YJ contact;Second controlling brancher For prepared auto restart switch controlling brancher, as shown in figure 3, the control coil of relay X be exactly prepared auto restart switch control coil, after The corresponding contacts electric appliance X are exactly prepared auto restart switch, and the contact string of the control coil of relay X and intermediate relay 1ZJ is located at the On two controlling branchers.Wherein, the contact of the contact and voltage relay 12YJ of the voltage relay 11YJ on the first controlling brancher It is normally opened contact, the contact of the intermediate relay 1ZJ on the second controlling brancher is normally-closed contact.Moreover, the second controlling brancher On, contact and the contact cabinet switch knob HA of intermediate relay 1ZJ are arranged in parallel, and contact cabinet switch knob HA can be realized manually Prepared auto restart controls.
In the present embodiment, in normal course of operation, incoming line cabinet L01 provides electric energy, and incoming line cabinet L10 is standby, works as incoming line cabinet When L01 inlet wire terminal voltages are abnormal, incoming line cabinet L10 is put into.Two voltage relays in the backup auto-activating device are connected to inlet wire The ends of incoming cables cabinet L01.Correspondingly, if in normal course of operation, incoming line cabinet L10 provides electric energy, and incoming line cabinet L01 is standby, when into When line cabinet L10 inlet wire terminal voltages are abnormal, incoming line cabinet L01 is put into, then, two voltage relays in the backup auto-activating device are just It needs to be connected to the ends of incoming cables incoming line cabinet L10, in order to realize the differentiation of device name, the title of the intermediate relay in circuit will It is changed to 2ZJ.If incoming line cabinet L01 and incoming line cabinet L10 are both provided with backup auto-activating device, the ends of incoming cables incoming line cabinet L01 and inlet wire The ends of incoming cables cabinet L10 are both provided with circuit structure shown in Fig. 2, corresponding two voltage relays in the ends of incoming cables incoming line cabinet L10 according to Actual conditions are named, and the intermediate relay connected at the ends of incoming cables incoming line cabinet L10 is just 2ZJ.
In order to reduce circuit complexity, the two backup auto-activating devices can use the control branch that the same prepared auto restart switchs Road, as shown in figure 3, the contact shunt of the contact of intermediate relay 1ZJ and intermediate relay 2ZJ are arranged.
It is illustrated by taking the ends of incoming cables incoming line cabinet L01 as an example below.
There are electric interlocks 3 to close 2 between two incoming line cabinets, one contact cabinet.When incoming line cabinet L01 breaker inlet wires terminal voltage just The positive often-have-electricity of control coil of Chang Shi, voltage relay 11YJ and 12YJ, normally opened contact are closed, at this time intermediate relay 1ZJ Control coil obtain electric, normally-closed contact disconnects, the control coil dead electricity of relay X at this time, that is, gets in touch with cabinet closing coil dead electricity, Contact cabinet closing circuit is in blocking, can not operate, two sections of inlet wires are independently-powered, without prepared auto restart.As incoming line cabinet L01 When breaker end of incoming cables occurs under-voltage, the control coil of voltage relay 11YJ and/or the control coil of voltage relay 12YJ Dead electricity, circuit breaker tripping tripping, voltage relay 11YJ and/or 12YJ normally opened contact restore to disconnect, at this time intermediate relay 1ZJ Control coil dead electricity, normally-closed contact restore be closed, the control coil of relay X obtains electric at this time, contact cabinet closing coil obtain Electricity gets in touch with cabinet closing circuit lock release, obtains electric closure, i.e. prepared auto restart switch is closed, and contact cabinet input realizes prepared auto restart, and Closing circuit, which will charge always to failure side primary voltage, to be restored, and normal side inlet wire is to two sections of power supplies at this time.In addition, waiting for that voltage is extensive It needs first to carry out sub-switching operation to getting in touch with cabinet after multiple, then close a floodgate tripping incoming line cabinet of threading off again, and two sections of realization is independently-powered again.
In above-described embodiment, the contact of the voltage relay 11YJ on the first controlling brancher and touching for voltage relay 12YJ Point is normally opened contact, and the contact of the intermediate relay 1ZJ on the second controlling brancher is normally-closed contact, this is only a kind of specific Embodiment, as other embodiments, the contact of the voltage relay 11YJ on the first controlling brancher and voltage relay The contact of 12YJ can also be normally-closed contact, then, the contact of the voltage relay 11YJ on the first controlling brancher and voltage The contact of relay 12YJ just needs to be arranged in parallel, if moreover, the contact of intermediate relay 1ZJ on the second controlling brancher just Normally opened contact.The course of work of the circuit structure is:When incoming line cabinet L01 breaker inlet wire terminal voltages are normal, voltage relay The positive often-have-electricity of control coil of 11YJ and 12YJ, normally-closed contact disconnect, at this time the control coil dead electricity of intermediate relay 1ZJ, Its normally opened contact disconnects, and cabinet closing coil dead electricity is got in touch with, without prepared auto restart.When incoming line cabinet L01 breakers end of incoming cables is owed When pressure, the control coil of voltage relay 11YJ and/or the control coil dead electricity of voltage relay 12YJ, circuit breaker tripping are jumped Lock, the normally-closed contact of voltage relay 11YJ and/or 12YJ restore to be closed, and the control coil of intermediate relay 1ZJ obtains electric at this time, Its normally opened contact is closed, and the control coil of relay X obtains electric at this time, and contact cabinet closing coil obtains electric, realization prepared auto restart.
In addition, based on the above technical solution, a voltage relay can also be again set between A phases and C phases, It realizes the under-voltage detection between A phases and C phases, then, the contact string of the voltage relay is located on the first controlling brancher, for certainly It throws control principle and process and above-mentioned technical proposal similarly, just no longer illustrates here.
Specific embodiment is presented above, but the utility model is not limited to described embodiment.This practicality Novel basic ideas are the basic structure of above-mentioned backup auto-activating device.In the feelings for not departing from the principles of the present invention and spirit The change, modification, replacement and modification carried out to embodiment under condition are still fallen in the scope of protection of the utility model.
Backup auto-activating device embodiment
Include first under-voltage for being arranged between the first phase and the second phase the present embodiment provides a kind of backup auto-activating device Detection module, the second under-voltage detection module for being arranged between the second phase and third phase and closes a floodgate for controlling prepared auto restart Prepared auto restart control module, the first under-voltage detection module and the second under-voltage detection module output connection prepared auto restart control module, when When first under-voltage detection module detects that under-voltage and/or the second under-voltage detection module detects under-voltage, prepared auto restart control module control Preparation is hauled oneself willingly into.It is just no longer specific here due to being described in detail to the backup auto-activating device in above system embodiment Explanation.

Claims (10)

1. a kind of backup auto-activating device, three-phase electricity is divided into the first phase, the second phase and third phase, which is characterized in that the prepared auto restart dress It sets including under-voltage detection part and the prepared auto restart control module for controlling prepared auto restart combined floodgate, the under-voltage detection part is at least wrapped Include the first under-voltage detection module for being arranged between the first phase and the second phase and for be arranged the second phase and third phase it Between the second under-voltage detection module, the first under-voltage detection module and the output of the second under-voltage detection module connect the prepared auto restart Control module, when the first under-voltage detection module detects that under-voltage and/or the second under-voltage detection module detects under-voltage, prepared auto restart Control module controls prepared auto restart.
2. backup auto-activating device according to claim 1, which is characterized in that the first under-voltage detection module is first voltage The control coil of relay, the second under-voltage detection module are the control coil of second voltage relay, the first voltage The contact of relay and the contact output of second voltage relay connect the prepared auto restart control module.
3. backup auto-activating device according to claim 2, which is characterized in that the prepared auto restart control module includes two controls Branch, the first controlling brancher be the power supply branch of intermediate relay, the contact of the first voltage relay and second voltage after The connection line that the contact of electric appliance is constituted and the control coil string of the intermediate relay are located on first controlling brancher, the Two controlling branchers are the controlling brancher of prepared auto restart switch, the control coil of the prepared auto restart switch and touching for the intermediate relay Point string is located on second controlling brancher.
4. backup auto-activating device according to claim 3, which is characterized in that the contact and second of the first voltage relay The contact series setting of voltage relay constitutes the connection line, the contact of the first voltage relay and second voltage after The contact of electric appliance is normally opened contact, and the contact of the intermediate relay is normally-closed contact.
5. backup auto-activating device according to claim 3 or 4, which is characterized in that the contact of the intermediate relay and one Switch knob is arranged in parallel.
6. a kind of spare power automatic switching system, including the first busbar, the second busbar, backup auto-activating device and the first busbar and the second busbar it Between prepared auto restart switch, three-phase electricity is divided into the first phase, the second phase and third phase, which is characterized in that the backup auto-activating device includes Under-voltage detection part and the prepared auto restart control module closed a floodgate for controlling prepared auto restart, the under-voltage detection part are included at least and are used for The first under-voltage detection module being arranged between the first phase and the second phase and for being arranged between the second phase and third phase Two under-voltage detection modules, the first under-voltage detection module and the second under-voltage detection module output connect the prepared auto restart and control mould Block, prepared auto restart control module control connect the prepared auto restart switch, when the first under-voltage detection module detect it is under-voltage and/or When second under-voltage detection module detects under-voltage, prepared auto restart control module controls prepared auto restart.
7. spare power automatic switching system according to claim 6, which is characterized in that the first under-voltage detection module is first voltage The control coil of relay, the second under-voltage detection module are the control coil of second voltage relay, the first voltage The contact of relay and the contact output of second voltage relay connect the prepared auto restart control module.
8. spare power automatic switching system according to claim 7, which is characterized in that the prepared auto restart control module includes two controls Branch, the first controlling brancher be the power supply branch of intermediate relay, the contact of the first voltage relay and second voltage after The connection line that the contact of electric appliance is constituted and the control coil string of the intermediate relay are located on first controlling brancher, the Two controlling branchers are the controlling brancher of prepared auto restart switch, the control coil of the prepared auto restart switch and touching for the intermediate relay Point string is located on second controlling brancher.
9. spare power automatic switching system according to claim 8, which is characterized in that the contact and second of the first voltage relay The contact series setting of voltage relay constitutes the connection line, the contact of the first voltage relay and second voltage after The contact of electric appliance is normally opened contact, and the contact of the intermediate relay is normally-closed contact.
10. spare power automatic switching system according to claim 8 or claim 9, which is characterized in that the contact of the intermediate relay and one Switch knob is arranged in parallel.
CN201820463094.XU 2018-04-03 2018-04-03 Backup auto-activating device and system Active CN208001183U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820463094.XU CN208001183U (en) 2018-04-03 2018-04-03 Backup auto-activating device and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820463094.XU CN208001183U (en) 2018-04-03 2018-04-03 Backup auto-activating device and system

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Publication Number Publication Date
CN208001183U true CN208001183U (en) 2018-10-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108429338A (en) * 2018-04-03 2018-08-21 河南森源电气股份有限公司 Prepared auto restart control method, backup auto-activating device and system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108429338A (en) * 2018-04-03 2018-08-21 河南森源电气股份有限公司 Prepared auto restart control method, backup auto-activating device and system

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