CN207908565U - A kind of gate energy meter replaces electric quantity compensating metering device online - Google Patents
A kind of gate energy meter replaces electric quantity compensating metering device online Download PDFInfo
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- CN207908565U CN207908565U CN201721889146.1U CN201721889146U CN207908565U CN 207908565 U CN207908565 U CN 207908565U CN 201721889146 U CN201721889146 U CN 201721889146U CN 207908565 U CN207908565 U CN 207908565U
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Abstract
The utility model discloses a kind of gate energy meters to replace electric quantity compensating metering device online, is related to electrical energy measurement field, including air-break, voltmeter, intermediate relay, terminal box, electric energy meter, switch, alligator forceps, the wire terminal of electric current short circuit, plug；The voltmeter is connected in parallel on air-break both sides, and the air-break, intermediate relay, terminal box, electric energy meter are sequentially connected by conducting wire.The utility model is simple in structure, synchronism is strong, accurate measurement, can be measured starter ammeter while stopping ammeter metering to be changed, the power load during accurate recording changes table when replacing ammeter online for staff；The accuracy of metering is not influenced by load variations；With the automatic audit function of pressure-wire wrong, it is ensured that personnel, equipment safety accomplish the accurate, fair and just of metering.
Description
Technical field
The utility model is related to electrical energy measurement fields more particularly to a kind of gate energy meter to replace electric quantity compensating metering online
Device.
Background technology
For the replacement of the period rotation and failure electric energy meter of running gate energy meter, in order to ensure electric power is normally given birth to
Production supply, the general on-load in scene replace electric energy meter.But in the voltage and current for disconnecting table to be changed, until loading onto new electric energy meter
After restore in normal this period, user power utilization is non-metering, dismounts in gate energy meter this period will produce electricity in this way
Amount loss, after changing end of list (EOL), will remedy the loss electricity in this period.In actual operation, table process is usually changed
It is middle using compensation scheme be before removing old gate energy meter record gate energy meter instantaneous voltage, electric current, power and power
Factor, while being shorted to stopwatch record secondary current circuit the correct time of recovery, to change the instantaneous power before table as changing
Mean power during table estimates the electric quantity loss during changing table, and during increasing this part in monthly billing electricity and changing table
Compensation electricity, large error is had when load variations are larger using this compensation scheme, can not accomplish quasi- metering this period
Electricity, can only be by manually carrying out estimation and many Electricity customers are remedied electricity and do not approved to calculated, to shadow
It has rung electric power enterprise and Electricity customers is reasonable, just electricity consumption transaction.
Utility model content
In view of the deficiencies of the prior art, a kind of gate energy meter of the utility model offer replaces electric quantity compensating metering dress online
It sets.
The utility model is to solve above-mentioned technical problem by the following technical solutions：A kind of gate energy meter is online
Replace electric quantity compensating metering device, including air-break, voltmeter, intermediate relay, terminal box, electric energy meter, switch, crocodile
Pincers, the wire terminal of electric current short circuit, plug；The voltmeter is connected in parallel on air-break both sides, the air-break, intermediate relay
Device, terminal box, electric energy meter are sequentially connected by conducting wire；The alligator forceps includes two groups, respectively first group of alligator forceps and second
Group alligator forceps；The end of incoming cables of the air-break respectively with first group of crocodile clipper joint, the normal-closed end of the intermediate relay
Respectively with second group of crocodile clipper joint；Electric current short circuit wire terminal pin connection corresponding with terminal box respectively；The switch
One end and the terminals of plug connect, the other end connect with one end of the coil of the intermediate relay, the intermediate relay
The other end of the coil of device and another terminals of plug connect.
Further, first group of alligator forceps, second group of alligator forceps quantity be respectively 4.
Further, the electric current short circuit wire terminal is banana plug or head bullet stick plug.
Further, the quantity of the electric current short circuit wire terminal is 6.
Further, the air-break is three-pole breaker, three tunnel ends of incoming cables of the air-break respectively with
Three road leading-out terminals of first group of crocodile clipper joint, the air-break are connect with three road common ends of intermediate relay respectively.
Further, the voltmeter is digital AC voltage table, pointer A.C. voltmeter, Multifunctional voltmeters
In one or two kinds of combination of the above.
Further, the electric energy meter uses corresponding electric energy meter according to the parameter of electric energy meter to be changed；It is charged for measuring
Change the electricity during table, it is ensured that the accuracy of metering.
Further, the switch is button switch or knife switch.
Compared with prior art, a kind of gate energy meter provided by the utility model replaces electric quantity compensating metering dress online
It sets, simple in structure, synchronism is strong, accurate measurement, can be measured starter ammeter while stopping ammeter metering to be changed, be
Accurate recording changes the power load during table when staff replaces ammeter online；The accuracy of metering is not by the shadow of load variations
It rings；With the automatic audit function of pressure-wire wrong, personnel, equipment safety can ensure that, accomplish accurate, the fair public affairs of metering
Just.
Description of the drawings
It, below will be to needed in embodiment description in order to illustrate more clearly of the technical solution of the utility model
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only one embodiment of the utility model, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structural schematic diagram that a kind of gate energy meter of the utility model replaces electric quantity compensating metering device online；
Wherein：ZK1- air-breaks, ZJ- intermediate relays, Va- first voltage tables, Vb- second voltage tables, Vc- thirds
Voltmeter, the first alligator forceps of Ua-, the second alligator forceps of Ub-, Uc- third alligator forceps, the 4th alligator forceps of Un-, five crocodiles of Ua '-the
Pincers, six alligator forceps of Ub '-the, seven alligator forceps of Uc '-the, eight alligator forceps of Un '-the, Ia- the first electric current short circuit wire terminals, Ib- second
Electric current short circuit wire terminal, Ic- third electric current short circuit wire terminals, the four electric current short circuit wire terminals of Ia '-the, the five electric current short circuits of Ib '-the
Wire terminal, the six electric current short circuit wire terminals of Ic '-the.
Fig. 2 is the part-structure signal that a kind of gate energy meter of the utility model replaces electric quantity compensating metering device online
Figure；
Wherein：ZK2- is switched, ZJ- intermediate relays, U- plugs.
Specific implementation mode
With reference to the attached drawing in the utility model embodiment, to this implement it is novel in technical solution carry out it is clear, complete
Site preparation describes, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained under the premise of not making creative work
Every other embodiment, shall fall within the protection scope of the present invention.
As shown in Figure 1 and Figure 2, a kind of gate energy meter provided by the utility model replaces electric quantity compensating metering dress online
It sets, including air-break ZK1, voltmeter, intermediate relay ZJ, terminal box, electric energy meter, switch ZK2, alligator forceps, electric current are short
Connection joint, plug U；Voltmeter includes three voltmeters, respectively first voltage Table V a, second voltage Table V b and tertiary voltage
Table V c；First voltage Table V a, second voltage Table V b, tertiary voltage Table V c are connected in parallel on the both sides air-break ZK1 respectively, and air is disconnected
Road device ZK1, intermediate relay ZJ, terminal box, electric energy meter are sequentially connected by conducting wire, the wiring of one end and plug U of switch ZK2
The coil of end connection, the other end and intermediate relay ZJ connects, and the other end of the coil of intermediate relay ZJ is another with plug U's
Terminals connect.
Alligator forceps includes two groups, respectively first group of alligator forceps and second group of alligator forceps；The quantity of first group of alligator forceps is 4
It is a, respectively the first alligator forceps Ua, the second alligator forceps Ub, third alligator forceps Uc, the 4th alligator forceps Un；The number of second group of alligator forceps
Amount is 4, respectively the 5th alligator forceps Ua ', the 6th alligator forceps Ub ', the 7th alligator forceps Uc ', the 8th alligator forceps Un '.
Electric current short circuit wire terminal is banana plug or head bullet stick plug, and quantity is 6, and respectively the first electric current is short
Connection joint Ia, the second electric current short circuit wire terminal Ib, third electric current short circuit wire terminal Ic, the 4th electric current short circuit wire terminal Ia ',
Five electric current short circuit wire terminal Ib ', the 6th electric current short circuit wire terminal Ic '.
Air-break ZK1 is three-pole breaker, the three tunnel ends of incoming cables of air-break ZK1 respectively with the first alligator forceps
Ua, the second alligator forceps Ub, the Uc connections of third alligator forceps, the three road leading-out terminals of air-break ZK1 respectively with intermediate relay ZJ
Three road common ends connection.
Three road common ends of intermediate relay ZJ are connect with the three road leading-out terminals of air-break ZK1 respectively, intermediate relay
The three tunnel normally open ends of device ZJ are connect with the pin of terminal box lower end 1, pin 4, pin 7 respectively, and three tunnels of intermediate relay ZJ are normal
Closed end is connect with the 5th alligator forceps Ua ', the 6th alligator forceps Ub ', the 7th alligator forceps Uc ' respectively.
Pin 1, pin 4, the pin 7 of terminal box lower end are connect with three tunnel normally open ends of intermediate relay ZJ respectively, wiring
The pin 2 of box lower end, pin 3, pin 5, pin 6, pin 7, pin 8 respectively with the first electric current short circuit wire terminal Ia, the second electricity
Flow short circuit wire terminal Ib, third electric current short circuit wire terminal Ic, the 4th electric current short circuit wire terminal Ia ', the 5th electric current short circuit wire terminal
Ib ', the 6th electric current short circuit wire terminal Ic ' connections；4th alligator forceps Un, the 8th alligator forceps Un ' draw with terminal box lower end respectively
Foot 10 connects.
The pin 2 of electric energy meter, pin 5, pin 8, pin 10 respectively with the pin of terminal box lower end 1, pin 4, pin 7,
Pin 10 connects, the pin 1 of electric energy meter, pin 3, pin 4, pin 6, pin 7, pin 9 pin with terminal box lower end respectively
2, pin 3, pin 5, pin 6, pin 7, pin 8 connect.
Voltmeter is digital AC voltage table, pointer A.C. voltmeter, one kind in Multifunctional voltmeters or two
Kind combination of the above.
Electric energy meter uses corresponding electric energy meter according to the parameter of electric energy meter to be changed.
Switch ZK2 is button switch or knife switch.
Using steps are as follows：
（1）The air-break ZK1 of electric quantity compensating metering device, switch ZK2 are off using preceding；
（2）According to the accuracy class of electric energy meter to be changed, the mode of connection and relevant parameter, corresponding electric energy meter is selected
（That is the electric energy meter in Fig. 1）On electric quantity compensating metering device, and record the initial table code W1 of the electric energy meter；Electric energy to be changed
Table is connect with table terminal box to be changed, Meter tail box to be changed respectively；
（3）The A phase voltages of table terminal box to be changed, B phase voltages, C phase voltages respectively with the first alligator forceps Ua, the second alligator forceps
Ub, the Uc connections of third alligator forceps；The A phase voltages of Meter tail box to be changed, B phase voltages, C phase voltages respectively with the 5th alligator forceps Ua ',
Six alligator forceps Ub ', the 7th alligator forceps Uc ' connections；
（4）In step（3）In crocodile clipper joint while read first voltage Table V a, second voltage Table V b, third electricity
The reading for pressing Table V c then can determine whether that the circuit at voltmeter both ends is same phase when voltmeter registration is 0V；When voltmeter registration
When not being 0V, then it can determine whether that the circuit at voltmeter both ends is not same phase, i.e. wiring is wrong, needs to reexamine wiring；
（5）In step（3）In alligator forceps wiring it is errorless after, by the first electric current short circuit wire terminal Ia, the 4th electric current short circuit
Wire terminal Ia ' is concatenated by table terminal box to be changed into A phase currents, by the second electric current short circuit wire terminal Ib, the 5th electric current shorting stub
Connector Ib ' is concatenated by table terminal box to be changed into B phase currents, and third electric current short circuit wire terminal Ic, the 6th electric current shorting stub are connect
Head Ic ' is concatenated by table terminal box to be changed into C phase currents；
（6）Close air-break ZK1, open table terminal box voltage to be changed in flakes and electric current in flakes, at this point, electricity to be changed
The voltage of energy table is preceding identical in flakes as opening voltage；The voltage value of the electric energy meter of electric quantity compensating metering device is still 0V；Electricity to be changed
The terminal box formation electric current time of energy table, table terminal box to be changed, the electric energy meter of electric quantity compensating metering device, electric quantity compensating metering device
Road；
（7）Plug U is inserted into alternating current 220V power outlet, powers on to electric quantity compensating metering device, closes out
Closing ZK2 makes intermediate relay ZJ act, and disconnects the voltage of electric energy meter to be changed, connects the electricity of the electric energy meter of electric quantity compensating metering device
Pressure, electric energy meter to be changed no longer measure, and the electric energy meter of electric quantity compensating metering device starts to measure, and realize synchronous conversion；Using special
Electric current shorting stub or change electric current in flakes, the current line of short circuit electric energy meter to be changed makes electric energy meter defluidization to be changed；
（8）Electric energy meter to be changed is removed, new electric energy meter is installed；
（9）After checking that new connection box of electric energy meter is correct, removes dedicated electric current shorting stub or change electric current in flakes, make new electric energy
The terminal box formation current loop of table, new table terminal box, the electric energy meter of electric quantity compensating metering device, electric quantity compensating metering device；
（10）Turning on the switch ZK2 makes intermediate relay ZJ act, and disconnects the voltage of the electric energy meter of electric quantity compensating metering device,
The voltage of new electric energy meter is connected, electric quantity compensating metering device electric energy no longer measures, and new electric energy meter starts to measure, and realizes synchronous turn
It changes；
（11）A, B, C phase voltage connection sheet in new table terminal box are connected to respectively, and change electric current connection sheet, electricity is made to chase after
Mend the electric energy meter defluidization of metering device；
（12）Remove alligator forceps Ua, Ub, Uc, Ua ', Ub ', Uc ' and electric current short circuit wire terminal Ia, Ia ', Ib, Ib ', Ic,
Ic’；New electrical-energy meter cap and new table connector cover are covered, lead sealing is installed.
At this point, the value that the table code on electric quantity compensating metering device subtracts initial table code W1 is generated electricity during replacing
Amount, accurate measurement accomplish the accurate, fair and just of metering.
Above disclosed is only specific embodiment of the present utility model, but the scope of protection of the utility model not office
It is limited to this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in change
Change or modification, should be covered within the scope of the utility model.
Claims (8)
1. a kind of gate energy meter replaces electric quantity compensating metering device online, it is characterised in that：Including air-break, voltage
Table, intermediate relay, terminal box, electric energy meter, switch, alligator forceps, the wire terminal of electric current short circuit, plug；The voltmeter is connected in parallel on
Air-break both sides, the air-break, intermediate relay, terminal box, electric energy meter are sequentially connected by conducting wire；The crocodile
Combination plier includes two groups, respectively first group of alligator forceps and second group of alligator forceps；The end of incoming cables of the air-break is respectively with
One group of crocodile clipper joint, the normal-closed end of the intermediate relay respectively with second group of crocodile clipper joint；The electric current shorting stub connects
Head pin connection corresponding with terminal box respectively；The terminals of one end of the switch and plug connect, the other end with it is described in
Between relay coil one end connection, another terminals of the other end of the coil of the intermediate relay and plug connect.
2. gate energy meter according to claim 1 replaces electric quantity compensating metering device online, it is characterised in that：Described
One group of alligator forceps, second group of alligator forceps quantity be respectively 4.
3. gate energy meter according to claim 1 replaces electric quantity compensating metering device online, it is characterised in that：The electricity
It is banana plug or head bullet stick plug to flow short circuit wire terminal.
4. gate energy meter according to claim 1 or 3 replaces electric quantity compensating metering device online, it is characterised in that：Institute
The quantity for stating electric current short circuit wire terminal is 6.
5. gate energy meter according to claim 1 replaces electric quantity compensating metering device online, it is characterised in that：The sky
Gas breaker is three-pole breaker, three tunnel ends of incoming cables of the air-break respectively with first group of crocodile clipper joint, the sky
Three road leading-out terminals of gas breaker are connect with three road common ends of intermediate relay respectively.
6. gate energy meter according to claim 1 replaces electric quantity compensating metering device online, it is characterised in that：Described
Voltmeter is one or two kinds of above group in digital AC voltage table, pointer A.C. voltmeter, Multifunctional voltmeters
It closes.
7. gate energy meter according to claim 1 replaces electric quantity compensating metering device online, it is characterised in that：The electricity
Energy table uses corresponding electric energy meter according to the parameter of electric energy meter to be changed.
8. gate energy meter according to claim 1 replaces electric quantity compensating metering device online, it is characterised in that：It is described to open
Close is button switch or knife switch.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721889146.1U CN207908565U (en) | 2017-12-29 | 2017-12-29 | A kind of gate energy meter replaces electric quantity compensating metering device online |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721889146.1U CN207908565U (en) | 2017-12-29 | 2017-12-29 | A kind of gate energy meter replaces electric quantity compensating metering device online |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507463A (en) * | 2018-12-24 | 2019-03-22 | 国网青海省电力公司海西供电公司 | Electric quantity compensating device and method |
| CN113702677A (en) * | 2021-08-04 | 2021-11-26 | 国网浙江杭州市富阳区供电有限公司 | Uninterrupted meter changing method and device with meter reading number updating function |
| CN113791273A (en) * | 2021-07-26 | 2021-12-14 | 广东电网有限责任公司广州供电局 | Electric quantity compensation method, device, system and storage medium |
| CN114113723A (en) * | 2021-11-19 | 2022-03-01 | 云南电网有限责任公司电力科学研究院 | Electric energy meter live-line replacement method and device without electric quantity loss |
-
2017
- 2017-12-29 CN CN201721889146.1U patent/CN207908565U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507463A (en) * | 2018-12-24 | 2019-03-22 | 国网青海省电力公司海西供电公司 | Electric quantity compensating device and method |
| CN113791273A (en) * | 2021-07-26 | 2021-12-14 | 广东电网有限责任公司广州供电局 | Electric quantity compensation method, device, system and storage medium |
| CN113702677A (en) * | 2021-08-04 | 2021-11-26 | 国网浙江杭州市富阳区供电有限公司 | Uninterrupted meter changing method and device with meter reading number updating function |
| CN113702677B (en) * | 2021-08-04 | 2024-05-24 | 国网浙江杭州市富阳区供电有限公司 | Uninterrupted meter changing method and device with meter number updating and reading functions |
| CN114113723A (en) * | 2021-11-19 | 2022-03-01 | 云南电网有限责任公司电力科学研究院 | Electric energy meter live-line replacement method and device without electric quantity loss |
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