CN204086340U - A kind of switch external intelligent electric energy meter stops repeating installation - Google Patents

A kind of switch external intelligent electric energy meter stops repeating installation Download PDF

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Publication number
CN204086340U
CN204086340U CN201420395018.1U CN201420395018U CN204086340U CN 204086340 U CN204086340 U CN 204086340U CN 201420395018 U CN201420395018 U CN 201420395018U CN 204086340 U CN204086340 U CN 204086340U
Authority
CN
China
Prior art keywords
electric energy
energy meter
intelligent electric
load switch
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420395018.1U
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Chinese (zh)
Inventor
开圣武
夏云飞
彭志伟
刘弓长
占波
郭庆
杨珂
张金花
孙燕
刘合莉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Wuhu Power Supply Co of State Grid Anhui Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Wuhu Power Supply Co of State Grid Anhui Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Wuhu Power Supply Co of State Grid Anhui Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201420395018.1U priority Critical patent/CN204086340U/en
Application granted granted Critical
Publication of CN204086340U publication Critical patent/CN204086340U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of switch external intelligent electric energy meter and stops repeating installation, comprise intelligent electric energy meter, on-load switch and shunt release, described electrical network connects load through intelligent electric energy meter, on-load switch, the tripping operation normal opened contact of described intelligent electric energy meter connects shunt release, and on the zero line between described tripping operation normal opened contact and shunt release and live wire, cross-over connection has arrearage power failure indicator.The utility model switch external intelligent electric energy meter stop repeating installation select the shunt release that can be assembled in load switch body inside to realize tripping operation controls, assembly is few, additionally do not take low pressure ammeter box space, principle is simple, safety economy, applicability by force, be both applicable to newly apply to install table case, also be applicable to that expense control is carried out to original table case on-load switch and stop the transformation of telegram in reply function adaptability, just can carry out when ammeter box is locked stopping telegram in reply and clearly inform user in light prompt mode after enforcement power failure, and user cannot send a telegram in reply privately.

Description

A kind of switch external intelligent electric energy meter stops repeating installation
Technical field
The utility model relates to power system device technical field, specifically, relates to a kind of on-load switch external intelligent electric energy meter with light prompt and stops repeating installation.
Background technology
Intelligent electric meter has the incomparable function of traditional ammeters such as remote meter reading, long-range power-off, long-range power transmission, substantially increases the management of power use and service level.Realize long-range power transmission of stopping must depend in check on-load switch to realize, on-load switch be for cut off and recover user load electrically cut-off equipment.
Different according to classification, the on-load switch of intelligent electric meter can arrange internal or external as required, built-in is generally realize the disconnected of outside electricity consumption with built-in Control breaker tripping and closing and close, and the external finger ammeter of switch exports control signal and realizes breaker tripping and closing to the electrical apparatus release of outside.Consider the factor such as electrical energy metering tank, convenient management, when single-phase intelligent electric energy meter adopts built-in on-load switch, electric energy meter maximum current is no more than 60A (the on-load switch capacity of configuration should be not less than 80A), extinguishing arc measure (hardware or software) should be had during switching manipulation, to improve the serviceable life of on-load switch, reduce failure rate.Can adopt built-in on-load switch for Three-fee-controlled below intelligent meter 60A equally, more than 60A must adopt external on-load switch.
In daily electric industry business is applied to install, often occur that customer charge electric current is greater than the situation of 60A, as industry and commerce user, because its power load primary current is large, the intelligent electric energy meter selected adopts through current transformer access way, and on-load switch also can only select external.
Load current is greater than to the ammeter box of 60A, generally can be equipped with the breaker of plastic casing of respective volume in casing, also claims automatic load switch, mould shell and refer to the shell being used as device with plastic insulation, be used between insulated conductor and ground metal portion.It can be used to connect and disjunction load circuit; loaded current value arrives hundreds of ampere tens; protection circuit and power-supply device, simultaneously also can as the infrequently starting of motor and overload short circuit low-voltage protections from the damage of the faults such as overload, short circuit, under-voltage.This isolating switch has the features such as volume is little, point broken height, arcing are short, anti-vibration, is thus widely used.
To sum up, need to design the electric device that a kind of low-voltage customer that can be greater than 60A to load current is implemented long-range or this locality to stop sending a telegram in reply at present, after implementing power failure, user cannot send a telegram in reply privately, to improve electricity charge risk control ability comprehensively, and should connect and disjunction normal load electric current and overload electric current, also will possess and connect and the ability of disjunction short-circuit current, simultaneously intelligent electric energy meter trip contact effect under, cut off customer charge electric current with accomplishing fast and reliable, implement power failure behavior.
Utility model content
Technical problem to be solved in the utility model realizes one can connect and disjunction normal load electric current and overload electric current, also possesses the ability of connection and disjunction short-circuit current, simultaneously under the effect of intelligent electric energy meter tripping operation contact, customer charge electric current can be cut off in fast and reliable ground, implement power failure behavior, and whether have display be that the switch external intelligent electric energy meter of " arrearage power failure " stops repeating installation.
To achieve these goals, the technical solution adopted in the utility model is: a kind of switch external intelligent electric energy meter stops repeating installation, comprise intelligent electric energy meter, on-load switch and shunt release, described electrical network connects load through intelligent electric energy meter, on-load switch, the tripping operation normal opened contact of described intelligent electric energy meter connects shunt release, and on the zero line between described tripping operation normal opened contact and shunt release and live wire, cross-over connection has arrearage power failure indicator.
Described shunt release is arranged in the housing of described on-load switch.
Described shunt release comprises auxiliary normally open contact and shunt opening coil, and described shunt opening coil one end connects the tripping operation normal opened contact of described intelligent electric energy meter through auxiliary normally open contact, and the other end connects described electrical network zero line.
Described arrearage power failure indicator adopts the highlighted pilot lamp of pure color of AC220V, 20mA.
The utility model switch external intelligent electric energy meter stop repeating installation select the shunt release that can be assembled in load switch body inside to realize tripping operation controls, assembly is few, additionally do not take low pressure ammeter box space, principle is simple, safety economy, applicability by force, be both applicable to newly apply to install table case, also be applicable to that expense control is carried out to original table case on-load switch and stop the transformation of telegram in reply function adaptability, just can carry out when ammeter box is locked stopping telegram in reply and clearly inform user in light prompt mode after enforcement power failure, and user cannot send a telegram in reply privately.
Accompanying drawing explanation
Mark in the content expressed every width accompanying drawing in the utility model instructions below and figure is briefly described:
Fig. 1 is that on-load switch external intelligent electric energy meter stops repeating installation structural representation;
Fig. 2 is that shunt release and intelligent electric energy meter trip normal opened contact connection diagram;
Mark in above-mentioned figure is: 1, intelligent electric energy meter; 2, on-load switch; 3, shunt release; 4, trip normal opened contact; 5, auxiliary normally open contact; 6, shunt opening coil; 7, arrearage power failure indicator.
Embodiment
Known see Fig. 2, electrical network connects load through intelligent electric energy meter 1, on-load switch 2, the tripping operation normal opened contact 4 that switch external intelligent electric energy meter stops the intelligent electric energy meter 1 of repeating installation connects shunt release, and cross-over connection has arrearage power failure indicator 7 on the zero line tripped between normal opened contact 4 and shunt release and live wire, as shown in Figure 1, after shunt release 3 is connected in series with tripping operation normal opened contact 4, the suitable L line of A, B, C any is got from on-load switch 2 end of incoming cables, connect single line from N line end again, composition single-phase AC 220V originally to stop repeating installation control power supply.
When installing, shunt release 3 is arranged in the housing of described on-load switch 2, and arrearage power failure indicator 7 can select AC 220V, the highlighted pilot lamp of industrial pure color of about 20mA.
The principle of work that the utility model stops repeating installation is as follows:
Shunt release is exactly that a switching winding adds electrical apparatus release in essence.Heat is threaded off and electromagnetic trip also uses this electrical apparatus release.Add the voltage of regulation to shunt opening trip coil, isolating switch is just threaded off and separating brake, and shunt release is commonly used in the control of far distance automatic power-off.Far can not control combined floodgate at once after isolating switch shunted exciter tripping, can not direct closing by hand, can close a floodgate after isolating switch must being detained again, this and overload wait thread off trip after to detain again the same.The difference of Here it is shunted exciter tripping and electric operating separating brake.Breaker operator handle has three positions, and except upper point lower conjunction two positions, after threading off, handle will rest on centre position.So-called button is again exactly that the position of to be pulled from centre position by handle point makes electrical apparatus release again hook, and then could close a floodgate.Shunt opening trip coil voltage kind has AC and DC, and voltage swing has various electric pressure.Shunt opening trip coil can only be energized the short time, and the time burns out once long; So will be connected in series the auxiliary normally open contact of an isolating switch in control loop, when isolating switch is at closing position, this contact closure, isolating switch is when separating brake or trip positions, and this contact is opened, and automatically can cut off the electric current of shunt opening trip coil after making circuit breaker tripping.
We know that, when ammeter box is locked, manipulable parts are exactly on-load switch, show when case designs specially for operational load switch handle leaves position, hole for this reason.
Originally stop repeating installation to be designed to when ammeter box is locked, telegram in reply operation can be stopped reliably.
When electric company because of arrearage or other reasons for implementing certain user to have a power failure time, can from SG186 sales service system or power information acquisition system, also or scene palm machine aim at intelligent electric energy meter 1 infrared communication window and send trip command, after intelligent electric energy meter 1 correctly receives, slightly postponing to prepare rear tripping operation normal opened contact 4 will by assigning to conjunction, if now on-load switch 2 is in closing position, its auxiliary normally open contact 3 will close, shunt opening coil 6 obtains alternating current 220V and controls power supply, on-load switch 2 snap action is made to thread off, even if the position that after threading off, handle is pulled point by user from centre position makes electrical apparatus release again hook, again close a floodgate again and can not close, because tripping operation normal opened contact 4 closes all the time after intelligent meter tripping operation, as long as user attempts on-load switch to be pulled the position of closing, then auxiliary normally open contact 3 just will close, shunt opening coil 6 again obtains alternating current 220V and controls power supply, on-load switch 2 snap action is made again to thread off, thus make on-load switch 2 all the time can not on normal occlusion.Thus reach once implement power failure behavior, the object that user just can not send a telegram in reply privately.
After enforcement arrearage has a power failure, on-load switch 2 is in trip positions, and on-load switch 2 is also in this centre position when on-load switch 2 persistent overcurrent or short circuit tripping operation, this causes an illusion with regard to easy to user, be hard to tell is that power supply enterprise deliberately implements to have a power failure or its inner overload on earth, short circuit causes on-load switch 2 to thread off, so tripping operation normal opened contact 4 after and connect an arrearage power failure indicator 7, this lamp is arranged near low pressure ammeter box on-load switch 2 operating handle, and indicate " arrearage power failure " printed words, like this when after intelligent meter tripping operation, tripping operation normal opened contact closes, namely this lamp is synchronously lighted, user's nature after sensation has a power failure can arrive ammeter box and check on-load switch 2 state, understand it is the power failure that arrearage causes at a glance.
After user pays up arrearage or meets power transmission condition, power supply enterprise can from SG186 sales service system or power information acquisition system, also or scene palm machine aim at intelligent electric energy meter 1 infrared communication window and send reclosing command, after intelligent electric energy meter 1 correctly receives, tripping operation normal opened contact 4 is instantaneous will by be incorporated into point, arrearage power failure indicator 7 dead electricity will by bright to going out, shunt release 3 controls power cut-off simultaneously, namely shunt release 3 is no longer implemented to control to on-load switch 2, after the position of now to be pulled from middle trip positions by on-load switch 2 handle point makes electrical apparatus release again hook, just can again close a floodgate.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious the utility model specific implementation is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection domain of the present utility model without to improve.

Claims (4)

1. a switch external intelligent electric energy meter stops repeating installation, it is characterized in that: comprise intelligent electric energy meter, on-load switch and shunt release, electrical network connects load through intelligent electric energy meter, on-load switch, the tripping operation normal opened contact of described intelligent electric energy meter connects shunt release, and on the zero line between described tripping operation normal opened contact and shunt release and live wire, cross-over connection has arrearage power failure indicator.
2. switch external intelligent electric energy meter according to claim 1 stops repeating installation, it is characterized in that: described shunt release is arranged in the housing of described on-load switch.
3. switch external intelligent electric energy meter according to claim 1 and 2 stops repeating installation, it is characterized in that: described shunt release comprises auxiliary normally open contact and shunt opening coil, described shunt opening coil one end connects the tripping operation normal opened contact of described intelligent electric energy meter through auxiliary normally open contact, and the other end connects electrical network zero line.
4. switch external intelligent electric energy meter according to claim 1 stops repeating installation, it is characterized in that: described arrearage power failure indicator adopts the highlighted pilot lamp of pure color of AC220V, 20mA.
CN201420395018.1U 2014-07-16 2014-07-16 A kind of switch external intelligent electric energy meter stops repeating installation Expired - Fee Related CN204086340U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420395018.1U CN204086340U (en) 2014-07-16 2014-07-16 A kind of switch external intelligent electric energy meter stops repeating installation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420395018.1U CN204086340U (en) 2014-07-16 2014-07-16 A kind of switch external intelligent electric energy meter stops repeating installation

Publications (1)

Publication Number Publication Date
CN204086340U true CN204086340U (en) 2015-01-07

Family

ID=52179041

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN204086340U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109164282A (en) * 2018-08-08 2019-01-08 国网山东省电力公司烟台供电公司 A kind of switch external intelligent electric energy meter stops repeating installation
CN110472965A (en) * 2019-08-21 2019-11-19 广东电网有限责任公司 A kind of power supply management method and system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109164282A (en) * 2018-08-08 2019-01-08 国网山东省电力公司烟台供电公司 A kind of switch external intelligent electric energy meter stops repeating installation
CN110472965A (en) * 2019-08-21 2019-11-19 广东电网有限责任公司 A kind of power supply management method and system

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150107

Termination date: 20200716