CN208522342U - A kind of voltage mutual inducer trolley of belt discharge counter - Google Patents
A kind of voltage mutual inducer trolley of belt discharge counter Download PDFInfo
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- CN208522342U CN208522342U CN201821395005.9U CN201821395005U CN208522342U CN 208522342 U CN208522342 U CN 208522342U CN 201821395005 U CN201821395005 U CN 201821395005U CN 208522342 U CN208522342 U CN 208522342U
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- handcart
- contact pin
- secondary coil
- arrester
- voltage
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Abstract
The utility model discloses a kind of voltage mutual inducer trolleys of belt discharge counter, handcart main body includes chassis vehicle and handcart vehicle frame, handcart vehicle frame is vertically set on chassis vehicle outer end, measuring device includes voltage transformer and fuse, handcart frame inside is successively arranged insulator from top to bottom, arrester, and voltage transformer, insulator is connected with contact arm by support, contact arm top is connected with Mume flower contact, support is connect by fuse with voltage transformer, support is also connect with arrester, arrester is connected with discharge counter, once resonance eliminator is set on chassis vehicle；Mume flower contact includes grid contact pin, touches piece and connecting rod, two grid contact pin are fixedly connected by three connecting rods, several pieces that touch are plugged in grid contact pin along the circumferencial direction of grid contact pin, and several slots are evenly equipped on the circumferencial direction of grid contact pin, and limiting groove is equipped on the side wall of slot；The side wall for touching piece is equipped with positive stop lug boss compatible with limiting groove.
Description
Technical field
The utility model relates to power switch cabinet technical fields, and in particular to a kind of voltage transformer of belt discharge counter
Handcart.
Background technique
In current domestic electrical system power station, as vacuum interrupter, the development of vacuum circuit breaker technology are gradually improved,
Vacuum circuit breaker in distribution automation station using more and more, since handcart type vacuum circuit breaker intersects in 3.6~12kV tri-
Medium-voltage equipment cabinet type used in stream 50Hz sectionalized single busbar connection system is widely used, therefore, match with this it is easy to operate,
Type handcart easy to maintenance is also increasingly widely used.Various handcarts be all made of worm screw shake promote and exit, operate it is light,
Flexibly.Entire handcart is small in size, and inspection and maintenance is convenient.Handcart testing position and operating position in cabinet body have to be filled in place
It sets, to guarantee that mechanical interlocking is reliable.
For high-voltage removable-type AC metal closed switch cabinet, switch cabinet body is usually by breaker chamber, bus-bar room, cable
Four parts in room and control room form, and when a major loop scheme is using isolation inlet wire band inlet wire arrester scheme, often will
Inlet wire arrester is mounted in cable vault.But, in practice it has proved that, inlet wire arrester is mounted in cable vault to there are following disadvantages
End: first, due to being installed on inlet wire arrester in the cable vault after switch cabinet, it is indoor on the one hand to occupy cable
The installation space of connecting copper bar, waste of resource simultaneously increase manufacturing cost, on the other hand cause cable vault space to become smaller, to scene
Maintenance and maintenance constitute trouble.In addition switchgear is being on active service i.e. when in use, power supply department need to also be installed in addition with monitoring in cable vault
Device such as monitoring counter, and then the installation space of cable vault is caused to become smaller；Second, when arrester is because of the factor of overvoltage etc
When damaging, by maintenance personal enter cable vault replacement when there are some potential safety problemss.
Utility model content
The purpose of this utility model is to overcome the shortage of prior art, and provides a kind of mutual induction of voltage of belt discharge counter
Device handcart solves existing voltage mutual inducer trolley unreasonable structure, does not have overvoltage protection, voltage protection counting, overload guarantor
The problem of functions such as shield and harmonic elimination power grid resonance.
The utility model is achieved through the following technical solutions:
A kind of voltage mutual inducer trolley of belt discharge counter, including handcart main body, and at least one set of measuring device, it is described
Handcart main body includes chassis vehicle and handcart vehicle frame, and the handcart vehicle frame is vertically set on chassis vehicle outer end, the measuring device
Including voltage transformer and fuse, it is mutual that the handcart frame inside is successively arranged insulator, arrester and voltage from top to bottom
Sensor, the insulator are connected with contact arm by support, and the contact arm top is connected with Mume flower contact, and the support passes through fusing
Device is connect with voltage transformer, and the support is also connect with arrester, and the arrester is connected with discharge counter, the chassis
Once resonance eliminator is set on vehicle；
The Mume flower contact includes grid contact pin, touches piece and connecting rod, and the two grid contact pin are fixed by three connecting rods
Connection, several pieces that touch are plugged in grid contact pin along the circumferencial direction of grid contact pin, uniformly distributed on the circumferencial direction of the grid contact pin
There are several slots, limiting groove is equipped on the side wall of slot；The side wall for touching piece is equipped with and is adapted with limiting groove
Positive stop lug boss.
A kind of voltage mutual inducer trolley of belt discharge counter of the utility model, the utility model voltage mutual inducer trolley
Key component is the design of handcart structure, and under the premise of guaranteeing insulation, function realizes integration, is realized with simplest structure
It is multi-functional, reduce the volume of cabinet body, reduce installation elements, extend the switchgear service life, meet automation control and
The requirement of various protections, the maintenance and maintenance of Convenient switch cabinet.
By adopting the above technical scheme, arrester setting is mounted on trolley of voltage transformer, will not occupy cable vault space.
Switchgear can be removed with handcart ontology after arrester damage simultaneously, it is conveniently replaced in this way.Furthermore it can also be protected using the program
Hinder the personal safety of operating personnel.In addition, insulator is a kind of insulator, arrester can be preferably protected.U-shaped aluminum frame and
U-shaped connecting bracket can mitigate weight as connecting component, increase the toughness of structure, keep vehicle structure more reliable and more stable, guarantee
Safety.
Further, the discharge counter is arranged on the handcart vehicle frame below voltage transformer.
Further, the contact arm is equipped with insulating sleeve.
Further, the support is equipped with insulating boot.
Further, the voltage transformer includes iron core, the first secondary coil, the second secondary coil and transformer housing, institute
It states packet on iron core and is equipped with insulating buffer layer, the second secondary coil is wound around on secondary skeleton, and is set in the insulating buffer layer of iron core
On, the first secondary coil is wound around on first time coil rack, and is sleeved on the second secondary coil；Iron core, the first secondary coil, second
Secondary coil is by the integral structure of poured with epoxy resin, and epoxy resin poured body is transformer housing, the first secondary coil
Both ends lead respectively on transformer housing upper surface upper connecting terminal and lower connecting terminal connect；The both ends of second secondary coil
Lead is connect with the two pieces secondary wiring terminals that transformer housing outer wall lower part is arranged in respectively, is equipped with outside secondary wiring terminals
Anti- cipher telegram separate terminal enclosure.
The utility model compared with prior art, has the following advantages and benefits:
A kind of voltage mutual inducer trolley of belt discharge counter of the utility model, the utility model voltage mutual inducer trolley
Key component is the design of handcart structure, and under the premise of guaranteeing insulation, function realizes integration, is realized with simplest structure
It is multi-functional, reduce the volume of cabinet body, reduce installation elements, extend the switchgear service life, meet automation control and
The requirement of various protections, the maintenance and maintenance of Convenient switch cabinet.
By adopting the above technical scheme, arrester setting is mounted on trolley of voltage transformer, will not occupy cable vault space.
Switchgear can be removed with handcart ontology after arrester damage simultaneously, it is conveniently replaced in this way.Furthermore it can also be protected using the program
Hinder the personal safety of operating personnel.In addition, insulator is a kind of insulator, arrester can be preferably protected.U-shaped aluminum frame and
U-shaped connecting bracket can mitigate weight as connecting component, increase the toughness of structure, keep vehicle structure more reliable and more stable, guarantee
Safety.
Voltage transformer installs a resonance eliminator additional, effectively prevent Ferroresonance Overvoltage Caused by PT, to guarantee system safety
Operation.Meter discharge counter is conducive to monitor the safe operation state of arrester.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram of the voltage mutual inducer trolley of belt discharge counter of the utility model；
Fig. 2 is the structural schematic diagram of the utility model Mume flower contact；
Fig. 3 is the structural schematic diagram of the utility model grid contact pin；
Fig. 4 is the structural schematic diagram that the utility model touches piece；
Fig. 5 is the structural schematic diagram of the utility model voltage transformer；
Label and corresponding parts title in attached drawing:
1- chassis vehicle, 2- handcart vehicle frame, 3- discharge counter, 4- arrester, 5- insulator, 6- support, 7- insulating boot, 8-
Contact arm, 9- insulating sleeve, 10- Mume flower contact, 11- fuse, 12- voltage transformer, resonance eliminator of 13-, 14- grid contact pin,
15- touches piece, 16- connecting rod, 17- limiting groove, 18- positive stop lug boss, 19- iron core, the first secondary coil of 20-, second of line of 21-
Circle, 22- insulating buffer layer, 23- transformer housing, 24- upper connecting terminal, 25- lower connecting terminal, 26- secondary wiring terminals,
The anti-cipher telegram separate terminal enclosure of 27-, 28- slot.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment
As shown in Figs 1-4, a kind of voltage mutual inducer trolley of belt discharge counter of the utility model, including handcart main body,
It is vertically fixed on chassis vehicle 1 with the handcart vehicle frame 2 of at least one set of measuring device, the voltage mutual inducer trolley, on handcart vehicle frame 2
It is sequentially installed with discharge counter 3, voltage transformer 12, arrester 4, insulator 5 from bottom to up, the front end of insulator 5 is equipped with
Support 6, the outside of support 6 are equipped with insulating boot 7, are fixed with laterally disposed contact arm 8 on support 6,8 end of contact arm is connected with plum blossom
Contact 10, contact arm 8 are externally provided with insulating sleeve 9, and fuse 11 is arranged between support 6 and voltage transformer 12,4 one end of arrester
It is fixed on handcart vehicle frame 2, the other end is connect with support 6, is equipped with a harmonic elimination apparatus 13 in 2 bottom of handcart vehicle frame.The hand
Vehicle main body includes chassis vehicle 1 and handcart vehicle frame 2, and the handcart vehicle frame 2 is vertically set on 1 outer end of chassis vehicle, the measurement dress
It sets including voltage transformer 12 and fuse 11,2 inside of handcart vehicle frame is successively arranged insulator 5, arrester from top to bottom
4 and voltage transformer 12, the setting of arrester 3 is mounted on trolley of voltage transformer, would not occupy cable vault space.And
It is conveniently replaced.First trolley is taken out when maintenance replacement, can also ensure the personal safety of operating personnel.Insulator 4 is a kind of exhausted
Edge body can preferably protect insulator 5 described in arrester 3 to be connected with contact arm 8 by support 6, and 8 top of contact arm is connected with
Mume flower contact 10, the support 6 are connect by fuse 11 with voltage transformer 12, and the support 6 is also connect with arrester 4,
The arrester 4 is connected with discharge counter 3, and discharge counter is to be connected on arrester in the following, being used to record lightning arrestor movement
A kind of device of number, the environmental condition of place to use are identical as connected arrester.JSY-8 discharge counter is to overvoltage
Protector working condition carries out real-time and stored count device.It can be monitored in detail by this product and the shape of institute's protection circuit
Condition, abnormal conditions before precognition accident reach analysis abnormal operation reason, the effect for generation of preventing accident.It is set on the chassis vehicle 1
It is equipped with a resonance eliminator 13.Voltage transformer installs a resonance eliminator additional, Ferroresonance Overvoltage Caused by PT is effectively prevent, to guarantee
System safety operation.Meter discharge counter is conducive to monitor the safe operation state of arrester.
Resonance eliminator purposes, the electromagnetic potential transformer in 6~35kV neutral point ungrounded electric network is (hereinafter referred to as
PT), when bus is unloaded or outlet is less, because of charging or the excitation of the reasons such as ground fault elimination at runtime of closing a floodgate, can make
Voltage transformer supersaturation, then there may be ferro-resonance over-voltages.It is unstable to there is phase-to-ground voltage, ground connection instruction malfunction
Make, the abnormal phenomenon such as PT high-voltage fuse fusing will lead to PT and burn, then cause other accident when serious.Such case is just
It needs that resonance eliminator is installed.
Resonance eliminator principle, essence are a kind of high capacity nonlinear resistors, play damping and current limliting.It can be with
Play the effect of good limitation Ferroresonance Overvoltage Caused by PT.If 6~35kV neutral point of electric network is earth-free, Y0 is connect on bus
The PT first winding of line becomes power grid unique metal channel over the ground.Power-to-ground capacitance has one by PT first winding
The transient process of charge and discharge.Test measures usually has highest amplitude to shove up to several amperes of power frequency half-wave through PT at this time, this electricity
Stream is possible to PT high-voltage wire iron-melting fusing.And after being mounted with resonance eliminator, this shove will be effectively suppressed, and high voltage fuse is no longer
It fuses because of this shove.
As Figure 2-3, the Mume flower contact 10 includes grid contact pin 14, touches piece 15 and connecting rod 16, grid described in two pieces
Contact pin 14 is fixedly connected by three connecting rods 16, multiple to touch piece 15 and be plugged in grid contact pin along the circumferencial direction of grid contact pin 14
On 14, it is evenly equipped with multiple slots 28 on the circumferencial direction of the grid contact pin 14, limiting groove 17 is equipped on the side wall of slot 28；
The side wall for touching piece 15 is equipped with positive stop lug boss 18 compatible with limiting groove 17.15 outer wall of piece is touched equipped with multiple
Spring band slot is arranged multiple tensioning springs on Mume flower contact 10, and tensioning spring is set on corresponding spring band slot.Using above-mentioned
Mume flower contact 10, the limit effect for solving the grid contact pin in existing Mume flower contact and touching between piece is poor, uses the section time
Afterwards, grid contact pin and touch between piece can there is a phenomenon where misplace.
The discharge counter 3 is arranged on the handcart vehicle frame 2 below voltage transformer 12.It is arranged on the contact arm 8
Insulating sleeve 9.The support 6 is equipped with insulating boot 7.
A kind of voltage mutual inducer trolley of belt discharge counter of the utility model, the utility model voltage mutual inducer trolley
Key component is the design of handcart structure, and under the premise of guaranteeing insulation, function realizes integration, is realized with simplest structure
It is multi-functional, reduce the volume of cabinet body, reduce installation elements, extend the switchgear service life, meet automation control and
The requirement of various protections, the maintenance and maintenance of Convenient switch cabinet.
By adopting the above technical scheme, arrester setting is mounted on trolley of voltage transformer, will not occupy cable vault space.
Switchgear can be removed with handcart ontology after arrester damage simultaneously, it is conveniently replaced in this way.Furthermore it can also be protected using the program
Hinder the personal safety of operating personnel.In addition, insulator is a kind of insulator, arrester can be preferably protected.U-shaped aluminum frame and
U-shaped connecting bracket can mitigate weight as connecting component, increase the toughness of structure, keep vehicle structure more reliable and more stable, guarantee
Safety.
As shown in figure 4, the voltage transformer includes iron core 19, the first secondary coil 20, the second secondary coil 21 and mutual inductor
Shell 23 includes being equipped with insulating buffer layer 22 on the iron core 19, and the second secondary coil 21 is wound around on secondary skeleton, and is set in
On the insulating buffer layer 22 of iron core 19, the first secondary coil 20 is wound around on first time coil rack, and is sleeved on the second secondary coil
On 21；By the integral structure of poured with epoxy resin, epoxy resin is poured for iron core 19, the first secondary coil 20, the second secondary coil 21
Injection body is transformer housing 23, the both ends lead of the first secondary coil 20 respectively with the upper wiring on 23 upper surface of transformer housing
Terminal 24 and lower connecting terminal 25 connect；The both ends lead of second secondary coil 21 is respectively with setting under 23 outer wall of transformer housing
Two secondary wiring terminals 26 in portion connect, and anti-cipher telegram separate terminal enclosure 27 is equipped with outside secondary wiring terminals.The utility model is a kind of
The voltage mutual inducer trolley of belt discharge counter, by using above-mentioned mutual inductor, make voltage mutual inducer trolley it is small in size, in holding
Property, small partial discharge, surface creepage distance is big, stable and reliable for performance.
A kind of voltage mutual inducer trolley of belt discharge counter of the utility model, since hands injured has good interchangeability,
Therefore can greatly improve power supply reliability this be broken and can change spare handcart.There are three working positions for general handcart:
1. operating position: 2. test positions: 3. maintenance position .2, testing position, breaker, which is drawn, can act to breaker, but breaker and primary
System is to be detached from, and is safe escape, is exactly the position that can guarantee safe distance between one-time contact, and secondary plug is also inserted in
On socket, as long as a closing operation power supply, so that it may test secondary circuit and whether breaker actuation is normal；3, operating position (heat
It is spare), all components of switchgear are all in working condition, and only breaker does not close a floodgate；This state is stand-by heat, at once
The route for needing to close a floodgate should be placed on stand-by heat, and automatic closing is also required to be placed on stand-by heat, the motor of live push-botton operation starting
Switch is also required to be placed on stand-by heat (for site operation personnel, this motor power transmission does not start also only).4, cold standby
State: breaker is placed on testing position, and secondary plug is not plugged.This state is " this circuit does not have to temporarily ".
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of voltage mutual inducer trolley of belt discharge counter, including handcart main body, and at least one set of measuring device, feature
Be: the handcart main body includes chassis vehicle (1) and handcart vehicle frame (2), and the handcart vehicle frame (2) is vertically set on chassis vehicle
(1) on outer end, the measuring device includes voltage transformer (12) and fuse (11), from upper on the inside of the handcart vehicle frame (2)
Insulator (5), arrester (4) and voltage transformer (12) are successively arranged under, the insulator (5) is connected by support (6)
Have contact arm (8), contact arm (8) top is connected with Mume flower contact (10), and the support (6) is mutual by fuse (11) and voltage
Sensor (12) connection, the support (6) also connect with arrester (4), and the arrester (4) is connected with discharge counter (3), institute
It states and once resonance eliminator (13) is set on chassis vehicle (1)；
The Mume flower contact (10) includes grid contact pin (14), touches piece (15) and connecting rod (16), grid contact pin (14) described in two pieces
It is fixedly connected by three connecting rods (16), it is multiple to touch piece (15) and be plugged in grid contact pin along the circumferencial direction of grid contact pin (14)
(14) on, multiple slots (28) are evenly equipped on the circumferencial direction of the grid contact pin (14), limit is equipped on the side wall of slot (28)
Position groove (17)；The side wall for touching piece (15) is equipped with limiting groove (17) compatible positive stop lug boss (18).
2. a kind of voltage mutual inducer trolley of belt discharge counter according to claim 1, it is characterised in that: the electric discharge
On the handcart vehicle frame (2) that counter (3) is arranged below voltage transformer (12).
3. a kind of voltage mutual inducer trolley of belt discharge counter according to claim 1, it is characterised in that: the contact arm
(8) insulating sleeve (9) are arranged on.
4. a kind of voltage mutual inducer trolley of belt discharge counter according to claim 1, it is characterised in that: the support
(6) insulating boot (7) are equipped with.
5. a kind of voltage mutual inducer trolley of belt discharge counter according to claim 1, it is characterised in that: the voltage
Mutual inductor includes iron core (19), the first secondary coil (20), the second secondary coil (21) and transformer housing (23), the iron core (19)
Upper packet is equipped with insulating buffer layer (22), and the second secondary coil (21) is wound around on secondary skeleton, and is set in the insulation of iron core (19)
On buffer layer (22), the first secondary coil (20) is wound around on first time coil rack, and is sleeved on the second secondary coil (21)；Iron
Core (19), the first secondary coil (20), the second secondary coil (21) pass through the integral structure of poured with epoxy resin, the first secondary coil
(20) both ends lead respectively on transformer housing (23) upper surface upper connecting terminal (24) and lower connecting terminal (25) even
It connects；The both ends lead of second secondary coil (21) respectively with setting transformer housing (23) outer wall lower part two pieces secondary connection end
Sub (26) connection, secondary wiring terminals outside are equipped with anti-cipher telegram separate terminal enclosure (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821395005.9U CN208522342U (en) | 2018-08-28 | 2018-08-28 | A kind of voltage mutual inducer trolley of belt discharge counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821395005.9U CN208522342U (en) | 2018-08-28 | 2018-08-28 | A kind of voltage mutual inducer trolley of belt discharge counter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208522342U true CN208522342U (en) | 2019-02-19 |
Family
ID=65333553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821395005.9U Active CN208522342U (en) | 2018-08-28 | 2018-08-28 | A kind of voltage mutual inducer trolley of belt discharge counter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208522342U (en) |
-
2018
- 2018-08-28 CN CN201821395005.9U patent/CN208522342U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201104 Address after: No.107 Nanzheng street, TangChang Town, Pidu District, Chengdu, Sichuan 610000 Patentee after: Sichuan Electric Appliance Group middle and low voltage intelligent Distribution Co.,Ltd. Address before: 610000 Beiwai Street, Tangchang Town, Pixian County, Chengdu City, Sichuan Province Patentee before: SICHUAN ELECTRICAL APPARATUS Co.,Ltd. |