CN103698733A - Test wiring terminal component for metering electric energy - Google Patents
Test wiring terminal component for metering electric energy Download PDFInfo
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- CN103698733A CN103698733A CN201310428216.3A CN201310428216A CN103698733A CN 103698733 A CN103698733 A CN 103698733A CN 201310428216 A CN201310428216 A CN 201310428216A CN 103698733 A CN103698733 A CN 103698733A
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- 238000012360 testing method Methods 0.000 title claims abstract description 20
- 239000004020 conductor Substances 0.000 claims description 64
- 239000002184 metal Substances 0.000 claims description 43
- 229910052751 metal Inorganic materials 0.000 claims description 43
- 238000009413 insulation Methods 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract 1
- 238000009440 infrastructure construction Methods 0.000 abstract 1
- 238000012795 verification Methods 0.000 description 4
- 230000006837 decompression Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The invention relates to a test wiring terminal component for metering electric energy. The test wiring terminal component comprises a support plate with guide rails on the left side and the right side, A-C phase current wiring terminals, a zero-phase current wiring terminal, A-C phase voltage wiring terminals, a zero-phase voltage wiring terminal, a first plug and a second plug, wherein the various wiring terminals are installed on the guide rails of the support plate in sequence. The test wiring terminal component for metering electric energy has the benefits that the work efficiency when a meter is changed is improved; an open circuit of a current secondary circuit, a short-circuit of a voltage secondary circuit or a grounding accident are prevented effectively; the workload of infrastructure construction workers is reduced; the wire checking time when a metering circuit fails is also shortened; the voltage loss of a voltage secondary circuit caused by working is avoided, so that the electricity retroactive work is reduced; voltage short-circuit or grounding accidents are prevented effectively during work; the disadvantages caused by the current measurement by using a current clamp are overcome; the process of changing the socket of the wiring terminal is simple.
Description
Technical field
The present invention relates to a kind of test connection terminal assemblies for electric energy metrical, for electric energy metrical specialty field-checking electric energy meter and replacing electric energy meter.
Background technology
Because electric energy meter screen display shows that fault, error in dipping transfinite, program mal, builtin voltage element fault, internal current element fault, RS485 communication module failure and other reasons will change electric energy meter, and also will regularly replace according to metrological regulation regulation, the electric energy meter of Southern Hebei Network prefectures and cities electric company replacing every year quantity is very large; In addition Watt-hour meter's field test is also important in the professional routine item of metering.
Current Hebei province Nan Wang prefectures and cities electric company metering secondary present situation: have and much moved transformer stations for many years, its terminal row is all that old-fashioned terminal and terminal connections sign are unclear, causes problems to gage work, and subject matter is as follows:
(1), when changing table and calibration, staff first finds metering secondary current loop and metering secondary voltage circuit by rule of thumb from numerous loops of terminal row, has the problem of confusing loop and losing time.
(2) while changing electric energy meter, electric current secondary loop need to be carried out to short circuit with Special short line.In short circuit current secondary circuit, staff need be held in the hand all the other the end of a thread of shorting stub, in order to avoid all the other short circuit the end of a thread touch voltage secondary circuit by mistake, causes ground short circuit.Due to shape (blade inserting) reason of short circuit the end of a thread, the contact area sometimes and between crimping screw is very little, easily causes open circuit, jeopardizes the person, equipment and power grid security.
(3) the transformer station's terminal having is aging, and contact resistance value is large, sometimes need two groups of short circuits even three groups of shorting stubs can change reluctantly table, there is very large security risk.
(4) while changing electric energy meter, voltage secondary circuit need to be disconnected.When off voltage secondary circuit, mainly contain the voltage secondary line that two kinds of mode: a, open terminal are discharged to electric energy meter side, disconnecting line not only wastes time and energy, and also has the risk of voltage secondary circuit ground short circuit.B, directly remove electric energy meter tail voltage secondary line, and carry out insulation with insulating tape.In the course of work, because electric energy meter tail voltage secondary line is charged all the time, so staff is conscientious especially careful, otherwise be easy to cause the generation of voltage secondary circuit short circuit or ground fault.Need special emphasize a bit: having the metered voltage secondary circuit of some transformer stations and protection voltage secondary circuit is common return; if there is metering secondary voltage circuit short circuit or ground connection; now protect voltage also will lose; protective device will lose protective effect; if line failure now; protective device is failure to actuate, and consequence is hardly imaginable.
(5) test connecting box has been installed additional in metering secondary in some transformer station, reduced to a certain extent and changed the risk of electric energy meter and verification electric energy meter and improved work efficiency, but this is not still best.First because install additional after test connecting box, the node of its secondary circuit will increase, and trouble spot also will be increased, and has not only increased capital construction personnel and metering inspector's workload, also searching of metering secondary fault has been increased to difficulty simultaneously; Secondly change shown rear recovery test connecting box voltage in flakes with electric current in flakes in, preventing that screwdriver from touching by mistake causes voltage secondary circuit short circuit or ground fault, electric current is upper and lower two groups in flakes, if staff's work mistake is misplayed in flakes, now can cause electric current secondary loop open circuit accident.Service test terminal box is not safe against all possibilities yet thus.
(6) Watt-hour meter's field test has two kinds of modes of connection at present, and the key distinction is in the wiring of current return.A kind of is to use testing current line to be directly concatenated in metering current secondary circuit, and another kind is to use current clamp to pinch obtaining current.For old-fashioned connection terminal, first method is testing current line need be received on current wiring terminal, then the electric current connector of current wiring terminal is opened, because the plug cap of old-fashioned connection terminal is plastic material, with the passage of time certainly will aging becoming fragile, easily damage.Now staff, when opening and recover connector, dare not exert oneself, if especially firmly do not worry again when recovering connector that electric current secondary loop connects the unreliable open circuit that causes, and makes troubles to work.Second Linking Method method is owing to adopting current clamp, without sealing in electric current secondary loop, so improved the security of work and improved work efficiency, but current clamp is according to electromagnetic induction principle, secondary current to be pinched and got, when measuring, tested electric current secondary line need be positioned to the center of current clamp jaw as far as possible, and guarantee that there is not dust jaw inside, otherwise measuring error will increase.The electric current secondary line that has plastic casing for cover, when carrying out current measurement, current clamp jaw often can not be completely closed, and measured value is inaccurate, and measurement result loses meaning, and calibration work cannot be carried out.For the first measuring method, the accuracy of the second measuring method is lower, and measuring error is larger.In real work, because current clamp jaw is larger, for convenience of pinching obtaining current, staff understands the tested electric current line of frequent distortion in addition, likely causes terminal screw to become flexible or electric current secondary loop open circuit.Voltage tester line adopts metal holder, when connecing voltage tester line, staff need clip to clip respectively on Ua, Ub, Uc, the Un voltage wiring terminal (screw) of voltage secondary circuit, due to voltage tester line deadweight reason, the phenomenon that clip slippage ejection often occurs when verification electric energy meter (overcomes its effect of weight even if look for a suitable position to do a support on voltage tester line, sometimes also can there is clip slippage and eject phenomenon), there is potential safety hazard.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of test connection terminal assemblies for electric energy metrical easy and simple to handle, safe, efficient.
In order to address the above problem, the present invention adopts following technical scheme:
For a test connection terminal assemblies for electric energy metrical, comprise supporting plate, A-C phase current connection terminal, Zero-phase current connection terminal, A-C phase voltage connection terminal, zero phase voltage connection terminal, the first plug and second plug of left and right sides band guide rail; Described each connection terminal is arranged on the guide rail of described supporting plate successively;
Described A phase current connection terminal comprises the first terminal insulating body, 2 the first cylindrical sockets, metal slide and 2 the first metallic conductors;
Described the first terminal insulating body inside is provided with left and right 2 the first chambers, and described 2 the first metallic conductors lay respectively in described 2 the first chambers, and suitable with described the first chamber respectively; Described the first terminal insulating body top is provided with the first socket aperture that lays respectively at described 2 the first chamber tops;
The top of described the first cylindrical socket is columniform the first insulated receptacle body, and its underpart is for being with externally threaded the first metal-connecting seat, and described the first insulated receptacle body is fixedly connected with described the first metal-connecting seat; Described the first insulated receptacle body is provided with at least 2 the first metal ferrule pipes that are connected with described the first metal-connecting seat; Described the first insulated receptacle body and described the first socket aperture are suitable, and described the first metal-connecting seat is threaded with described the first metallic conductor;
The slotted eye between described 2 the first chambers that the top of described the first terminal insulating body is provided with and the first screw is suitable, the bottom of described slotted eye is higher than the bottom of described the first chamber; Described 2 the first metallic conductors are equipped with gathering sill with the corresponding end in described slotted eye bottom, and the two ends of described gathering sill and described metal slide are suitable; Described the first screw is threaded with described metal slide, and stretches out the end face of described the first terminal insulating body;
The two ends, left and right, bottom of described the first terminal insulating body are equipped with the draw-in groove suitable with the guide rail of described supporting plate; The left and right sides of described the first terminal insulating body are equipped with the first through hole communicating with described the first chamber; Described the first metallic conductor end face is provided with first blind hole corresponding with described the first through hole; The two ends, upper surface left and right of described the first terminal insulating body are respectively equipped with the first line pressing bolt hole, and the first line pressing bolt that is arranged in described the first line pressing bolt hole is pushed down respectively the external wire that is positioned at described the first blind hole place;
Described B phase current connection terminal, C phase current connection terminal are identical with the structure of A phase current connection terminal;
Described Zero-phase current connection terminal comprises the second terminal insulating body, 2 the second cylindrical sockets and the second metallic conductor; Described the second terminal insulating body inside is provided with the second chamber, and described the second metallic conductor is placed in described the second chamber, and suitable with described the second chamber; The top of described the second terminal insulating body is provided with 2 the second socket apertures;
Described the second cylindrical socket is identical with the structure of described the first cylindrical socket, and described the second cylindrical socket comprises the second metal-connecting seat, the second insulated receptacle body and the second metal ferrule pipe; Described the second insulated receptacle body and described the second socket aperture are suitable, and described the second metal-connecting seat is threaded with described the second metallic conductor;
The two ends, left and right, bottom of described the second terminal insulating body are equipped with the draw-in groove suitable with the guide rail of described supporting plate; The left and right sides of described the second terminal insulating body are equipped with the second through hole being connected with described the second chamber, and the end face of described the second metallic conductor is provided with second blind hole corresponding with described the second through hole; The two ends, upper surface left and right of described the second terminal insulating body are respectively equipped with the second line pressing bolt hole, and the second line pressing bolt that is arranged in described the second line pressing bolt hole is pushed down respectively the external wire that is arranged in the second blind hole;
Described zero phase voltage connection terminal is identical with the structure of described Zero-phase current connection terminal;
Described A phase voltage connection terminal comprises the 3rd terminal insulating body, the 3rd cylindrical socket, the 4th cylindrical socket, the 3rd metallic conductor and the 4th metallic conductor; Two ends, the inner left and right of described the 3rd terminal insulating body are respectively equipped with the 3rd chamber and the 4th chamber, and the length at described the 3rd two ends, chamber left and right is greater than the length at the 4th two ends, chamber left and right; Described the 3rd metallic conductor, the 4th metallic conductor lay respectively in described the 3rd chamber, the 4th chamber, and suitable with described the 3rd chamber, the 4th chamber respectively; Described the 3rd terminal insulating body top is provided with the 3rd socket aperture that is positioned at the 3rd chamber top; The top of described the 3rd terminal insulating body is provided with the 4th socket aperture between described the 3rd chamber and the 4th chamber;
Described the 3rd cylindrical socket is identical with the structure of described the first cylindrical socket, and described the 3rd cylindrical socket comprises the 3rd metal-connecting seat, the 3rd insulated receptacle body and the 3rd metal ferrule pipe; Described the 3rd insulated receptacle body and described the 3rd socket aperture are suitable, and described the 3rd metal-connecting seat is threaded with described the 3rd metallic conductor;
The top of described the 4th cylindrical socket is columniform the 4th insulated receptacle body, and its underpart is for being with externally threaded the 4th metal-connecting seat, and described the 4th insulated receptacle body is fixedly connected with described the 4th metal-connecting seat; The centre of described the 4th cylindrical socket is the division board that vertically insulate, and described vertical insulation division board is fixedly connected with described the 4th insulated receptacle body, the 4th metal-connecting seat respectively; Described the 4th insulated receptacle body is provided with at least 2 the 4th metal ferrule pipes that are connected with described the 4th metal-connecting seat; Described the 4th insulated receptacle body and described the 4th socket aperture are suitable, and described the 4th metal-connecting seat is threaded with the 3rd metallic conductor, the 4th metallic conductor simultaneously;
The two ends, left and right, bottom of described the 3rd terminal insulating body are equipped with the draw-in groove suitable with the guide rail of described supporting plate; The left and right sides of described the 3rd terminal insulating body are provided with third through-hole, the fourth hole communicating with described the 3rd chamber, the 4th chamber respectively; The end face of described the 3rd metallic conductor, the 4th metallic conductor be respectively equipped with three blind hole corresponding with described third through-hole, with corresponding the 4th blind hole of described fourth hole; The two ends, upper surface left and right of described the 3rd terminal insulating body are respectively equipped with the 3rd line pressing bolt hole, the 4th line pressing bolt hole; The 3rd line pressing bolt that is arranged in described the 3rd line pressing bolt hole is pushed down the external wire that is arranged in described the 3rd blind hole; The 4th line pressing bolt that is arranged in described the 4th line pressing bolt hole is pushed down the external wire that is arranged in described the 4th blind hole;
Described the first plug comprises the first insulating body, at least 2 the first contact pins, the first circular metal plate and wires; The left side of described the first insulating body is provided with the 5th chamber, and described the first circular metal plate is arranged in described the 5th chamber, and itself and described the 5th chamber are suitable; The right side of described the first insulating body is provided with the fifth hole being connected with described the 5th chamber, and described wire is fixedly connected with described the first sheet metal through described fifth hole; One end of described the first contact pin is fixedly connected with described the first circular metal plate, and its other end stretches out the left side wall of described the 5th chamber;
Described the second plug comprises the second insulating body, at least 2 the second contact pins and the second circular metal plate; The left side of described the second insulating body is provided with the 6th chamber, and described the second circular metal plate is placed in described the 6th chamber, and suitable with described the 6th chamber; One end of described the second contact pin is fixedly connected with described the second circular metal plate, and its other end stretches out the left side wall of described the 6th chamber.
The upper portion insulating of described each socket partly arranges vertical striped.
Beneficial effect of the present invention is:
(1) while changing table, staff only need insert electric current shorting stub plug, and voltage plug is extracted, during recovery in contrast, greatly improve work efficiency, and effectively stopped the generation of electric current secondary loop open circuit and voltage secondary circuit short circuit or ground fault.
(2) if the present invention can use in newly-built transformer station, can save test connecting box, reduced the quantity of node in loop, reduced workload not only to capital construction personnel, also for checking and accepting the line inspection, gage work personnel bring convenience the time of the line inspection while also having shortened measurement loop fault simultaneously.
(3) the voltage secondary circuit decompression that work causes has been avoided in use of the present invention, has also just reduced electric quantity compensating work.(corresponding whole piece bus PT secondary voltage is by decompression for the transformer station moving down for stoichiometric point, Ruo You mono-tunnel metered voltage secondary loop short circuit or ground connection, and all outlet electric energy meters all can be because of the few quantity calculation of decompression, and to electric quantity compensating, work causes difficulty.）
(4) because voltage tester line adopts pluggable mode, it connects reliable, and plug adopts good insulation measures, the generation of effectively having stopped voltage secondary circuit short circuit or ground fault when work.
(5) during verification electric energy meter, the drawback of using current clamp to survey electric current obtains and solves, and test error data are more accurate, more convincing.
(6) for current wiring terminal, electric energy meter one side socket is deformed by External Force Acting or damages while impacting metering routine work, only need to the Special short line short circuit for socket of Current Transformer Secondary line one side will be connect, then electric energy meter side socket (socket of damage) can be unloaded, pack new socket into.This process does not need to have a power failure, and has avoided the situation that adopts one connected mode current transformer must be had a power failure and just can change.
(7) more easy for voltage wiring terminal, only socket need be unloaded and changes new socket, avoided disassembling voltage secondary circuit short circuit or the ground fault generation that voltage secondary wiring causes.
(8) current wiring terminal adopts gathering sill design, and its slide plate is free to slide in gathering sill, and guiding precisely.
(9) upper portion insulating of each socket partly arranges vertical striped and can increase its friction force, facilitates gage work personnel to carry out installation and the replacing of socket.
Accompanying drawing explanation
Fig. 1 is front view of the present invention;
Fig. 2 is vertical view of the present invention;
Fig. 3 is left view of the present invention;
Fig. 4 is the front view of A phase current connection terminal;
Fig. 5 is the vertical view of A phase current connection terminal;
Fig. 6 is the D-D cut-open view of Fig. 5;
Fig. 7 is the A-A cut-open view of Fig. 2;
Fig. 8 is the B-B cut-open view of Fig. 2;
Fig. 9 is the first plug;
Figure 10 is the second plug;
Figure 11 is work on the spot schematic diagram of the present invention.
Embodiment
From the embodiment shown in Fig. 1-11, the present embodiment comprises supporting plate 1, A-C phase current connection terminal, Zero-phase current connection terminal, A-C phase voltage connection terminal, zero phase voltage connection terminal, the first plug and second plug of left and right sides band guide rail; Described each connection terminal is sequentially arranged on the guide rail of described supporting plate 1;
Described A phase current connection terminal comprises 4,2 the first cylindrical sockets of the first terminal insulating body, metal slide 5 and 2 the first metallic conductors 6;
Described the first terminal insulating body 4 inside are provided with left and right 2 the first chambers 7, and described 2 the first metallic conductors 6 lay respectively in described 2 the first chambers 7, and suitable with described the first chamber 7 respectively; Described the first terminal insulating body 4 tops are provided with the first socket aperture 8 that lays respectively at described 2 the first chamber 7 tops;
The top of described the first cylindrical socket is columniform the first insulated receptacle body 15, and its underpart is for being with externally threaded the first metal-connecting seat 16, and described the first insulated receptacle body 15 is fixedly connected with described the first metal-connecting seat 16; Described the first insulated receptacle body 15 is provided with at least 2 the first metal ferrule pipes 17 that are connected with described the first metal-connecting seat 16; Described the first insulated receptacle body 15 is suitable with described the first socket aperture 8, and described the first metal-connecting seat 16 is threaded with described the first metallic conductor 7;
The slotted eye 10 between described 2 the first chambers 7 that the top of described the first terminal insulating body 4 is provided with and the first screw 11 is suitable, the bottom of described slotted eye 10 is higher than the bottom of described the first chamber 7; Described 2 the first metallic conductors 6 are equipped with gathering sill 9 with the described slotted eye 10 corresponding ends in bottom, and described gathering sill 9 is suitable with the two ends of described metal slide 5; Described the first screw 11 is threaded with described metal slide 5, and stretches out the end face of described the first terminal insulating body 4;
The two ends, left and right, bottom of described the first terminal insulating body 4 are equipped with the draw-in groove suitable with the guide rail of described supporting plate 1; The left and right sides of described the first terminal insulating body 4 are equipped with the first through hole 12 communicating with described the first chamber 7; Described the first metallic conductor 6 end faces are provided with first blind hole 13 corresponding with described the first through hole 12; The two ends, upper surface left and right of described the first terminal insulating body 4 are respectively equipped with the first line pressing bolt hole, and the first line pressing bolt 14 that is arranged in described the first line pressing bolt hole is pushed down respectively the external wire that is arranged in described the first blind hole 13;
Described B phase current connection terminal, C phase current connection terminal are identical with the structure of A phase current connection terminal;
Described Zero-phase current connection terminal comprises 18,2 the second cylindrical sockets of the second terminal insulating body and the second metallic conductor 20; Described the second terminal insulating body 18 inside are provided with the second chamber 21, and described the second metallic conductor 20 is placed in described the second chamber 21, and suitable with described the second chamber 21; The top of described the second terminal insulating body 18 is provided with 2 the second socket apertures 22;
Described the second cylindrical socket is identical with the structure of described the first cylindrical socket, and described the second cylindrical socket comprises the second metal-connecting seat 50, the second insulated receptacle body 51 and the second metal ferrule pipe 52; Described the second insulated receptacle body 51 is suitable with described the second socket aperture 22, and described the second metal-connecting seat 50 is threaded with described the second metallic conductor 20;
The two ends, left and right, bottom of described the second terminal insulating body 18 are equipped with the draw-in groove suitable with the guide rail of described supporting plate 1; The left and right sides of described the second terminal insulating body 18 are equipped with the second through hole 24 being connected with described the second chamber 21, and the end face of described the second metallic conductor 20 is provided with second blind hole 26 corresponding with described the second through hole 24; The two ends, upper surface left and right of described the second terminal insulating body 18 are respectively equipped with the second line pressing bolt hole, and the second line pressing bolt 19 that is arranged in described the second line pressing bolt hole is pushed down respectively the external wire that is arranged in described the second blind hole 26;
Described zero phase voltage connection terminal is identical with the structure of described Zero-phase current connection terminal;
Described A phase voltage connection terminal comprises the 3rd terminal insulating body 27, the 3rd cylindrical socket, the 4th cylindrical socket, the 3rd metallic conductor 30 and the 4th metallic conductor 31; Described the 3rd two ends, the inner left and right of terminal insulating body 27 are respectively equipped with the 3rd chamber 32 and the 4th chamber 33, and the length at described the 3rd chamber 32 two ends, left and right is greater than the length at the 4th chamber 33 two ends, left and right; Described the 3rd metallic conductor 30, the 4th metallic conductor 31 lay respectively in described the 3rd chamber 32, the 4th chamber 33, and suitable with described the 3rd chamber 32, the 4th chamber 33 respectively; Described the 3rd terminal insulating body top is provided with the 3rd socket aperture 34 that is positioned at the 3rd chamber 32 tops; The top of described the 3rd terminal insulating body 27 is provided with the 4th socket aperture 35 between described the 3rd chamber 32 and the 4th chamber 33;
Described the 3rd cylindrical socket is identical with the structure of described the first cylindrical socket, and described the 3rd cylindrical socket comprises the 3rd metal-connecting seat 53, the 3rd insulated receptacle body 54 and the 3rd metal ferrule pipe 55; Described the 3rd insulated receptacle body 54 is suitable with described the 3rd socket aperture 34, and described the 3rd metal-connecting seat 53 is threaded with described the 3rd metallic conductor 30;
The top of described the 4th cylindrical socket is columniform the 4th insulated receptacle body 57, and its underpart is for being with externally threaded the 4th metal-connecting seat 56, and described the 4th insulated receptacle body 57 is fixedly connected with described the 4th metal-connecting seat 56; The centre of described the 4th cylindrical socket is the division board 58 that vertically insulate, and described vertical insulation division board 58 is fixedly connected with described the 4th insulated receptacle body 57, the 4th metal-connecting seat 56 respectively; Described the 4th insulated receptacle body 57 is provided with at least 2 the 4th metal ferrule pipes 59 that are connected with described the 4th metal-connecting seat 56; Described the 4th insulated receptacle body 57 is suitable with described the 4th socket aperture 35, and described the 4th metal-connecting seat 56 is threaded with the 3rd metallic conductor 30, the 4th metallic conductor 31 simultaneously;
The two ends, left and right, bottom of described the 3rd terminal insulating body 27 are equipped with the draw-in groove suitable with the guide rail of described supporting plate 1; The left and right sides of described the 3rd terminal insulating body 27 are provided with third through-hole 36, the fourth hole 37 communicating with described the 3rd chamber 32, the 4th chamber 33 respectively; The end face of described the 3rd metallic conductor 30, the 4th metallic conductor 31 be respectively equipped with three blind hole 38 corresponding with described third through-hole 36, with corresponding the 4th blind hole 39 of described fourth hole 37; The two ends, upper surface left and right of described the 3rd terminal insulating body 27 are respectively equipped with the 3rd line pressing bolt hole, the 4th line pressing bolt hole; The 3rd line pressing bolt 40 that is arranged in described the 3rd line pressing bolt hole is pushed down the external wire that is arranged in described the 3rd blind hole 38; The 4th line pressing bolt 41 that is arranged in described the 4th line pressing bolt hole is pushed down the external wire that is arranged in described the 4th blind hole 39;
Described the first plug comprises the first insulating body 61, at least 2 the first contact pins 62, the first circular metal plate 63 and wires 68; The left side of described the first insulating body 61 is provided with the 5th chamber, and described the first circular metal plate 63 is arranged in described the 5th chamber, and itself and described the 5th chamber are suitable; The right side of described the first insulating body 61 is provided with the fifth hole 64 being connected with described the 5th chamber, and described wire is fixedly connected with described the first sheet metal through described fifth hole 64; One end of described the first contact pin 62 is fixedly connected with described the first circular metal plate 63, and its other end stretches out the left side wall of described the 5th chamber;
Described the second plug comprises 65, at least 2 the second contact pins 66 of the second insulating body and the second circular metal plate 67; The left side of described the second insulating body 65 is provided with the 6th chamber, and described the second circular metal plate 67 is placed in described the 6th chamber, and suitable with described the 6th chamber; One end of described the second contact pin 66 is fixedly connected with described the second circular metal plate 67, and its other end stretches out the left side wall of described the 6th chamber.
The upper portion insulating of described each socket partly arranges vertical striped.
The workflow of the present embodiment is as follows:
As shown in figure 11, the U of voltage transformer (VT)
a, U
b, U
cfor its terminals, U
a, U
b, U
c, U
nfor its secondary connection end; The I of current transformer
a, I
b, I
cfor its terminals, I
a, I
b, I
c, I
nfor its secondary connection end.In working site, the primary connection end U of voltage transformer (VT)
a, U
b, U
cconnect bus one time, its secondary connection end U
a, U
b, U
c, U
nthrough the through hole on (see figure 2) A-N phase voltage connection terminal of the present invention right side, by line pressing bolt, pushed down respectively; The a-n phase voltage terminals of electric energy meter are pushed down by line pressing bolt through the through hole in A-N phase voltage connection terminal of the present invention left side respectively; The primary connection end I of current transformer
a, I
b, I
cconnect bus one time, its secondary connection end I
a, I
b, I
c, I
nthrough the through hole on (see figure 2) A-N phase current connection terminal of the present invention right side, by line pressing bolt, pushed down respectively; The a-n phase current terminals of electric energy meter are pushed down by line pressing bolt through the through hole in A-N phase current connection terminal of the present invention left side respectively.
If 4 the second plugs are inserted to the socket on A-N phase voltage connection terminal of the present invention right side, the slide of A-C phase current connection terminal is slided into on position, electric energy meter is normally worked.
When verification electric energy meter, 4 the first plugs are inserted to the socket in A-N phase voltage connection terminal of the present invention left side, and the conductor wire end of 4 the first plugs is connect respectively to the corresponding end of electric energy meter on-site calibrator; 6 the first plugs are inserted to the socket of the A-C phase current connection terminal of the present invention left and right sides simultaneously, the conductor wire end of 6 the first plugs is connect respectively to the corresponding end of electric energy meter on-site calibrator, and the slide of A-C phase current connection terminal is slided into open position, can carry out the verifying work of electric energy meter.
When changing electric energy meter, 4 the second plugs are extracted from the socket on A-N phase voltage connection terminal of the present invention right side; 4 the first plugs are inserted to the socket in A-N phase current connection terminal of the present invention left side, and by 4 conductor wire end short circuits of 4 the first plugs, can carry out more changing jobs of electric energy meter.
In real work, need to calculate and its stroke being threaded into when the right side socket of design voltage connection terminal is screwed into bottommost, make the middle vertical insulation division board of the 4th cylindrical socket between the 3rd terminal insulating body the 3rd chamber of voltage wiring terminal and the 3rd metallic conductor and the 4th metallic conductor in the 4th chamber, guarantee between the 3rd metallic conductor and the 4th metallic conductor it is that insulation is isolated, and the metallic conductor with externally threaded the 4th metal-connecting seat of the 4th cylindrical socket is connected with the 4th metallic conductor with described the 3rd metallic conductor respectively.In order to facilitate staff's identification, can vertical alignment line be set at socket and the 3rd terminal insulating body correspondence position, when socket is screwed into bottommost, its alignment line aligning that just in time overlaps, now whether staff can screw in position and meet the requirements by the position judgment socket of alignment line.
Each connection terminal of the present invention adopts phase look and word to identify, not only attractive in appearance but also be convenient to gage work personnel and carry out identification.
Claims (2)
1. for a test connection terminal assemblies for electric energy metrical, it is characterized in that: the supporting plate (1), A-C phase current connection terminal, Zero-phase current connection terminal, A-C phase voltage connection terminal, zero phase voltage connection terminal, the first plug and the second plug that comprise left and right sides band guide rail; Described each connection terminal is arranged on the guide rail of described supporting plate (1) successively;
Described A phase current connection terminal comprises the first terminal insulating body (4), 2 the first cylindrical sockets, metal slide (5) and 2 the first metallic conductors (6);
Described the first terminal insulating body (4) inside is provided with left and right 2 the first chambers (7), and described 2 the first metallic conductors (6) lay respectively in described 2 the first chambers (7), and suitable with described the first chamber (7) respectively; Described the first terminal insulating body (4) top is provided with the first socket aperture (8) that lays respectively at described 2 the first chambers (7) top;
The top of described the first cylindrical socket is columniform the first insulated receptacle body (15), and its underpart is for being with externally threaded the first metal-connecting seat (16), and described the first insulated receptacle body (15) is fixedly connected with described the first metal-connecting seat (16); Described the first insulated receptacle body (15) is provided with at least 2 the first metal ferrule pipes (17) that are connected with described the first metal-connecting seat (16); Described the first insulated receptacle body (15) is suitable with described the first socket aperture (8), and described the first metal-connecting seat (16) is threaded with described the first metallic conductor (7);
The top of described the first terminal insulating body (4) is provided with and the first screw (11) is suitable is positioned at the slotted eye (10) between described 2 the first chambers (7), and the bottom of described slotted eye (10) is higher than the bottom of described the first chamber (7); Described 2 the first metallic conductors (6) are equipped with gathering sill (9) with the corresponding end in described slotted eye (10) bottom, and described gathering sill (9) is suitable with the two ends of described metal slide (5); Described the first screw (11) is threaded with described metal slide (5), and stretches out the end face of described the first terminal insulating body (4);
The two ends, left and right, bottom of described the first terminal insulating body (4) are equipped with the draw-in groove suitable with the guide rail of described supporting plate (1); The left and right sides of described the first terminal insulating body (4) are equipped with the first through hole (12) communicating with described the first chamber (7); Described the first metallic conductor (6) end face is provided with first blind hole (13) corresponding with described the first through hole (12); The two ends, upper surface left and right of described the first terminal insulating body (4) are respectively equipped with the first line pressing bolt hole, and the first line pressing bolt (14) that is arranged in described the first line pressing bolt hole is pushed down respectively the external wire that is arranged in described the first blind hole (13);
Described B phase current connection terminal, C phase current connection terminal are identical with the structure of A phase current connection terminal;
Described Zero-phase current connection terminal comprises the second terminal insulating body (18), 2 the second cylindrical sockets and the second metallic conductor (20); Described the second terminal insulating body (18) inside is provided with the second chamber (21), and described the second metallic conductor (20) is placed in described the second chamber (21), and suitable with described the second chamber (21); The top of described the second terminal insulating body (18) is provided with 2 the second socket apertures (22);
Described the second cylindrical socket is identical with the structure of described the first cylindrical socket, and described the second cylindrical socket comprises the second metal-connecting seat (50), the second insulated receptacle body (51) and the second metal ferrule pipe (52); Described the second insulated receptacle body (51) is suitable with described the second socket aperture (22), and described the second metal-connecting seat (50) is threaded with described the second metallic conductor (20);
The two ends, left and right, bottom of described the second terminal insulating body (18) are equipped with the draw-in groove suitable with the guide rail of described supporting plate (1); The left and right sides of described the second terminal insulating body (18) are equipped with the second through hole (24) being connected with described the second chamber (21), and the end face of described the second metallic conductor (20) is provided with second blind hole (26) corresponding with described the second through hole (24); The two ends, upper surface left and right of described the second terminal insulating body (18) are respectively equipped with the second line pressing bolt hole, and the second line pressing bolt (19) that is arranged in described the second line pressing bolt hole is pushed down respectively the external wire that is arranged in described the second blind hole (26);
Described zero phase voltage connection terminal is identical with the structure of described Zero-phase current connection terminal;
Described A phase voltage connection terminal comprises the 3rd terminal insulating body (27), the 3rd cylindrical socket, the 4th cylindrical socket, the 3rd metallic conductor (30) and the 4th metallic conductor (31); Described the 3rd two ends, the inner left and right of terminal insulating body (27) are respectively equipped with the 3rd chamber (32) and the 4th chamber (33), and the length at described the 3rd chamber (32) two ends, left and right is greater than the length at the 4th chamber (33) two ends, left and right; Described the 3rd metallic conductor (30), the 4th metallic conductor (31) lay respectively in described the 3rd chamber (32), the 4th chamber (33), and suitable with described the 3rd chamber (32), the 4th chamber (33) respectively; Described the 3rd terminal insulating body top is provided with the 3rd socket aperture (34) that is positioned at the 3rd chamber (32) top; The top of described the 3rd terminal insulating body (27) is provided with the 4th socket aperture (35) being positioned between described the 3rd chamber (32) and the 4th chamber (33);
Described the 3rd cylindrical socket is identical with the structure of described the first cylindrical socket, and described the 3rd cylindrical socket comprises the 3rd metal-connecting seat (53), the 3rd insulated receptacle body (54) and the 3rd metal ferrule pipe (55); Described the 3rd insulated receptacle body (54) is suitable with described the 3rd socket aperture (34), and described the 3rd metal-connecting seat (53) is threaded with described the 3rd metallic conductor (30);
The top of described the 4th cylindrical socket is columniform the 4th insulated receptacle body (57), and its underpart is for being with externally threaded the 4th metal-connecting seat (56), and described the 4th insulated receptacle body (57) is fixedly connected with described the 4th metal-connecting seat (56); The centre of described the 4th cylindrical socket is the division board (58) that vertically insulate, and described vertical insulation division board (58) is fixedly connected with described the 4th insulated receptacle body (57), the 4th metal-connecting seat (56) respectively; Described the 4th insulated receptacle body (57) is provided with at least 2 the 4th metal ferrule pipes (59) that are connected with described the 4th metal-connecting seat (56); Described the 4th insulated receptacle body (57) is suitable with described the 4th socket aperture (35), and described the 4th metal-connecting seat (56) is threaded with the 3rd metallic conductor (30), the 4th metallic conductor (31) simultaneously;
The two ends, left and right, bottom of described the 3rd terminal insulating body (27) are equipped with the draw-in groove suitable with the guide rail of described supporting plate (1); The left and right sides of described the 3rd terminal insulating body (27) are provided with third through-hole (36), the fourth hole (37) communicating with described the 3rd chamber (32), the 4th chamber (33) respectively; The end face of described the 3rd metallic conductor (30), the 4th metallic conductor (31) be respectively equipped with three blind hole (38) corresponding with described third through-hole (36), with corresponding the 4th blind hole (39) of described fourth hole (37); The two ends, upper surface left and right of described the 3rd terminal insulating body (27) are respectively equipped with the 3rd line pressing bolt hole, the 4th line pressing bolt hole; The 3rd line pressing bolt (40) that is arranged in described the 3rd line pressing bolt hole is pushed down the external wire that is arranged in described the 3rd blind hole (38); The 4th line pressing bolt (41) that is arranged in described the 4th line pressing bolt hole is pushed down the external wire that is arranged in described the 4th blind hole (39);
Described the first plug comprises the first insulating body (61), at least 2 the first contact pins (62), the first circular metal plate (63) and wire (68); The left side of described the first insulating body (61) is provided with the 5th chamber, and described the first circular metal plate (63) is arranged in described the 5th chamber, and itself and described the 5th chamber are suitable; The right side of described the first insulating body (61) is provided with the fifth hole (64) being connected with described the 5th chamber, and described wire is fixedly connected with described the first sheet metal through described fifth hole (64); One end of described the first contact pin (62) is fixedly connected with described the first circular metal plate (63), and its other end stretches out the left side wall of described the 5th chamber;
Described the second plug comprises the second insulating body (65), at least 2 the second contact pins (66) and the second circular metal plate (67); The left side of described the second insulating body (65) is provided with the 6th chamber, and described the second circular metal plate (67) is placed in described the 6th chamber, and suitable with described the 6th chamber; One end of described the second contact pin (66) is fixedly connected with described the second circular metal plate (67), and its other end stretches out the left side wall of described the 6th chamber.
2. a kind of test connection terminal assemblies for electric energy metrical according to claim 1, is characterized in that: the upper portion insulating of described each socket partly arranges vertical striped.
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| CN201310428216.3A CN103698733B (en) | 2013-09-18 | 2013-09-18 | A kind of test connection terminal assemblies for electric energy metrical |
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| CN201310428216.3A CN103698733B (en) | 2013-09-18 | 2013-09-18 | A kind of test connection terminal assemblies for electric energy metrical |
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| CN103698733A true CN103698733A (en) | 2014-04-02 |
| CN103698733B CN103698733B (en) | 2016-08-17 |
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| CN103884886A (en) * | 2014-04-21 | 2014-06-25 | 国家电网公司 | Novel combined type terminal connecting box |
| CN104767128A (en) * | 2015-04-01 | 2015-07-08 | 泰安安能电气集团有限公司 | Application method of plug type terminal in middle-set-type alternating current metal closed switchgear |
| CN104897936A (en) * | 2015-05-08 | 2015-09-09 | 国家电网公司 | Junction box with load for replacing metering device |
| CN106877022A (en) * | 2017-03-21 | 2017-06-20 | 河北工程技术高等专科学校 | A kind of modularized combination type snap-fastener connecting terminal block |
| CN106980035A (en) * | 2017-05-26 | 2017-07-25 | 滕海峰 | Three-phase electric energy meter auxiliary terminal block |
| CN107039849A (en) * | 2017-05-23 | 2017-08-11 | 梦孚（上海）教育科技有限公司 | A kind of attachment structure of electronic module |
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| CN109030873A (en) * | 2017-06-12 | 2018-12-18 | 广东电网有限责任公司揭阳供电局 | A kind of connecting terminal apparatus based on single-ended short circuit |
| CN109444801A (en) * | 2018-10-25 | 2019-03-08 | 国网浙江乐清市供电有限公司 | A kind of device being conducive to the carrying of misconnection line detector |
| CN109870603A (en) * | 2018-12-27 | 2019-06-11 | 国网山东省电力公司潍坊供电公司 | A kind of joint termination |
| CN110648823A (en) * | 2019-10-30 | 2020-01-03 | 国网山东省电力公司菏泽市定陶区供电公司 | CT terminal box for quick wiring |
| CN111123046A (en) * | 2019-12-03 | 2020-05-08 | 国网河南省电力公司鹤壁供电公司 | Device for rapidly measuring cable insulation strength |
| CN112366535A (en) * | 2020-09-18 | 2021-02-12 | 安徽正日电气有限公司 | Low-voltage electric energy metering device |
| CN114152805A (en) * | 2020-09-08 | 2022-03-08 | 武汉国测数据技术有限公司 | Electric energy meter structure for checking error at home of user and error checking method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2047391U (en) * | 1988-10-13 | 1989-11-08 | 郝振奎 | Plug-in device for testing kilowatt-hour meter |
| CN201060217Y (en) * | 2007-06-01 | 2008-05-14 | 姜琦 | Electrical energy meter multifunctional wiring box |
| CN201145702Y (en) * | 2008-01-16 | 2008-11-05 | 朱伟 | Electric energy metering combined wiring box |
| CN202231192U (en) * | 2011-09-23 | 2012-05-23 | 上海雷锐精密仪器有限公司 | Quick connector for measuring and checking current secondary loop |
| CN102798838A (en) * | 2012-08-29 | 2012-11-28 | 重庆市电力公司电力科学研究院 | Pluggable safety junction box for site calibration of electric energy meter |
| CN203025343U (en) * | 2012-12-27 | 2013-06-26 | 重庆市电力公司电力科学研究院 | Compound type intelligent terminal junction device |
| CN203443993U (en) * | 2013-09-18 | 2014-02-19 | 国家电网公司 | Electric energy metering wiring apparatus |
-
2013
- 2013-09-18 CN CN201310428216.3A patent/CN103698733B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2047391U (en) * | 1988-10-13 | 1989-11-08 | 郝振奎 | Plug-in device for testing kilowatt-hour meter |
| CN201060217Y (en) * | 2007-06-01 | 2008-05-14 | 姜琦 | Electrical energy meter multifunctional wiring box |
| CN201145702Y (en) * | 2008-01-16 | 2008-11-05 | 朱伟 | Electric energy metering combined wiring box |
| CN202231192U (en) * | 2011-09-23 | 2012-05-23 | 上海雷锐精密仪器有限公司 | Quick connector for measuring and checking current secondary loop |
| CN102798838A (en) * | 2012-08-29 | 2012-11-28 | 重庆市电力公司电力科学研究院 | Pluggable safety junction box for site calibration of electric energy meter |
| CN203025343U (en) * | 2012-12-27 | 2013-06-26 | 重庆市电力公司电力科学研究院 | Compound type intelligent terminal junction device |
| CN203443993U (en) * | 2013-09-18 | 2014-02-19 | 国家电网公司 | Electric energy metering wiring apparatus |
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884886A (en) * | 2014-04-21 | 2014-06-25 | 国家电网公司 | Novel combined type terminal connecting box |
| CN104767128A (en) * | 2015-04-01 | 2015-07-08 | 泰安安能电气集团有限公司 | Application method of plug type terminal in middle-set-type alternating current metal closed switchgear |
| CN104897936A (en) * | 2015-05-08 | 2015-09-09 | 国家电网公司 | Junction box with load for replacing metering device |
| CN106877022A (en) * | 2017-03-21 | 2017-06-20 | 河北工程技术高等专科学校 | A kind of modularized combination type snap-fastener connecting terminal block |
| CN107039849A (en) * | 2017-05-23 | 2017-08-11 | 梦孚（上海）教育科技有限公司 | A kind of attachment structure of electronic module |
| CN106980035A (en) * | 2017-05-26 | 2017-07-25 | 滕海峰 | Three-phase electric energy meter auxiliary terminal block |
| CN107202910A (en) * | 2017-06-12 | 2017-09-26 | 广东电网有限责任公司揭阳供电局 | Test terminal with function of preventing short circuit and false disconnection |
| CN107345973A (en) * | 2017-06-12 | 2017-11-14 | 广东电网有限责任公司揭阳供电局 | Novel test terminal with function of preventing short circuit and false disconnection and special plug-in |
| CN107389985A (en) * | 2017-06-12 | 2017-11-24 | 广东电网有限责任公司揭阳供电局 | Test terminal with function of preventing short circuit and false disconnection |
| CN109030873A (en) * | 2017-06-12 | 2018-12-18 | 广东电网有限责任公司揭阳供电局 | A kind of connecting terminal apparatus based on single-ended short circuit |
| CN107345973B (en) * | 2017-06-12 | 2023-03-24 | 广东电网有限责任公司揭阳供电局 | Test terminal with function of preventing short circuit and false disconnection and special plug-in |
| CN109030873B (en) * | 2017-06-12 | 2023-09-08 | 广东电网有限责任公司揭阳供电局 | Binding post device based on single-ended short circuit |
| CN107202910B (en) * | 2017-06-12 | 2023-03-24 | 广东电网有限责任公司揭阳供电局 | Test terminal with function of preventing short circuit and false disconnection |
| CN107389985B (en) * | 2017-06-12 | 2023-03-24 | 广东电网有限责任公司揭阳供电局 | Test terminal with function of preventing short circuit and false disconnection |
| CN107300630A (en) * | 2017-07-28 | 2017-10-27 | 广东电网有限责任公司揭阳供电局 | Novel failure protection test terminal |
| CN107300630B (en) * | 2017-07-28 | 2023-03-24 | 广东电网有限责任公司揭阳供电局 | Failure protection test terminal |
| CN109444801A (en) * | 2018-10-25 | 2019-03-08 | 国网浙江乐清市供电有限公司 | A kind of device being conducive to the carrying of misconnection line detector |
| CN109870603A (en) * | 2018-12-27 | 2019-06-11 | 国网山东省电力公司潍坊供电公司 | A kind of joint termination |
| CN109870603B (en) * | 2018-12-27 | 2021-04-16 | 国网山东省电力公司潍坊供电公司 | Joint termination |
| CN110648823A (en) * | 2019-10-30 | 2020-01-03 | 国网山东省电力公司菏泽市定陶区供电公司 | CT terminal box for quick wiring |
| CN110648823B (en) * | 2019-10-30 | 2024-04-26 | 国网山东省电力公司菏泽市定陶区供电公司 | CT terminal box for quick wiring |
| CN111123046B (en) * | 2019-12-03 | 2022-06-10 | 国网河南省电力公司鹤壁供电公司 | Device for rapidly measuring cable insulation strength |
| CN111123046A (en) * | 2019-12-03 | 2020-05-08 | 国网河南省电力公司鹤壁供电公司 | Device for rapidly measuring cable insulation strength |
| CN114152805A (en) * | 2020-09-08 | 2022-03-08 | 武汉国测数据技术有限公司 | Electric energy meter structure for checking error at home of user and error checking method |
| CN114152805B (en) * | 2020-09-08 | 2024-04-26 | 武汉国测数据技术有限公司 | Electric energy meter structure for checking errors by users at home and error checking method |
| CN112366535B (en) * | 2020-09-18 | 2022-07-26 | 安徽正日电气有限公司 | Low-voltage electric energy metering device |
| CN112366535A (en) * | 2020-09-18 | 2021-02-12 | 安徽正日电气有限公司 | Low-voltage electric energy metering device |
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Address after: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee after: STATE GRID CORPORATION OF CHINA Patentee after: STATE GRID HEBEI ELECTRIC POWER Research Institute Patentee after: STATE GRID HEBEI ENERGY TECHNOLOGY SERVICE Co.,Ltd. Address before: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee before: State Grid Corporation of China Patentee before: ELECTRIC POWER SCIENCES RESEARCH INSTITUTE OF STATE GRID HEBEI ELECTRIC POWER Co. Patentee before: HEBEI ELECTRIC POWER COMMISSIONING INSTITUDE |
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Effective date of registration: 20210930 Address after: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee after: STATE GRID CORPORATION OF CHINA Patentee after: Marketing service center of State Grid Hebei Electric Power Co.,Ltd. Patentee after: STATE GRID HEBEI ELECTRIC POWER Research Institute Patentee after: STATE GRID HEBEI ENERGY TECHNOLOGY SERVICE Co.,Ltd. Address before: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee before: STATE GRID CORPORATION OF CHINA Patentee before: STATE GRID HEBEI ELECTRIC POWER Research Institute Patentee before: STATE GRID HEBEI ENERGY TECHNOLOGY SERVICE Co.,Ltd. |