CN203787835U - One-piece handcart used for phasing and bus grounding of high tension switchgear - Google Patents
One-piece handcart used for phasing and bus grounding of high tension switchgear Download PDFInfo
- Publication number
- CN203787835U CN203787835U CN201420195103.3U CN201420195103U CN203787835U CN 203787835 U CN203787835 U CN 203787835U CN 201420195103 U CN201420195103 U CN 201420195103U CN 203787835 U CN203787835 U CN 203787835U
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- handcart
- nuclear phase
- ground cutter
- bus
- underframe
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Abstract
The utility model discloses a one-piece handcart used for phasing and bus grounding of a high tension switchgear. The one-piece handcart comprises a handcart body, a bus side conductive arm, a line side conductive arm, a bus side earthing disconnector, a valve opening mechanism, a bus earthing disconnector operating shaft, a handcart propulsion mechanism and a high tension induction insulator. The handcart body comprises an underframe and a stand, and the stand is vertically fixed on the underframe. The underframe is provided with a plurality of rollers to enable the handcart to move in the switchgear. The underframe is fixedly provided with the valve opening mechanism, and the line side conductive arm is fixed arranged above the valve opening mechanism. The underframe is also provided with the propulsion mechanism to push in or pull out the handcart of the switchgear. The stand is provided with the bus side earthing disconnector, the bus earthing disconnector operating shaft and the high tension induction insulator. The bus side conductive arm is arranged on the high tension induction insulator. The one-piece handcart is advantaged by improving safety of operators and testing efficiency, reducing safety risk, saving cost, being safe and reliable, and the like.
Description
Technical field
The utility model relates to a kind of for high-tension switch cabinet nuclear phase, busbar grounding function solid type handcart.
Background technology
Along with the development of electric power system, high-tension switch cabinet is applied more and more extensive in electric power system, and its normalizing operation is directly connected to the safe operation of electric power system.Grid company operational management regulation: operating switch gear room bus bar side baffle plate must not be opened, and the switch cubicle rear cabinet door of operation must not be opened, causes the switch cubicle cannot nuclear phase.Busbar grounding is also to perplex the difficult problem of operation that becomes, and during the operation of busbar grounding now, operating personnel will climb to cabinet top, pull down top closure, ability electrical verification, hanging earthing conductor.But switch cubicle does not have Earth pile-head ground wire to articulate, can only be connected on the crossbeam of rear cabinet door temporarily, and in bus-bar room, have the insulating sleeve narrow space ground wire cannot good contact, often earth connection is ridden on bus, do not have protection staff's effect.
In prior art, the mutual comparison that general nuclear phase hand cart can not be realized the voltage between different electrical power, more can not realize the voltage comparison between out-phase.High-tension switch cabinet is designed to locellus isolation now, the fail safe that has improved equipment, but because equipment is constructed this life reason, busbar grounding is a difficult problem, operating personnel will climb to cabinet top, pull down top closure, ability electrical verification, hanging earthing conductor.But switch cubicle does not have Earth pile-head ground wire to articulate, and has insulating sleeve in bus-bar room, bus narrow space ground wire cannot good contact, in real work, often earth connection is put into bus-bar room, contacts the bad effect that can not play protection personal security.
Utility model content
The utility model is the weak point existing in above-mentioned prior art for avoiding, provide a kind of for high-tension switch cabinet nuclear phase, busbar grounding function solid type handcart, to improve operating personnel's fail safe and the security risk that testing efficiency, the operation of reduction nuclear phase bring.
The utility model be technical solution problem by the following technical solutions.
For high-tension switch cabinet nuclear phase, busbar grounding function solid type handcart, its design feature is to comprise handcart support body, bus bar side conductive arm, line side conductive arm, bus bar side ground cutter, valve opener, bus ground cutter operating axis, handcart advancing mechanism and high voltage induction insulator (as shown in Figure 1);
Described handcart support body comprises underframe and stand, and described stand is vertically fixed on described underframe; Handcart on described underframe, is provided with a plurality of rollers, so that can move in switch cubicle; On described underframe, be fixed with described valve opener, described line side conductive arm is fixedly installed on the top of described valve opener; On described underframe, be also provided with a handcart advancing mechanism, so that described handcart is pushed or pull out switch cubicle; In described stand, be provided with described bus bar side ground cutter, bus ground cutter operating axis and high voltage induction insulator; Described bus bar side conductive arm is arranged on described high voltage induction insulator.
Design feature for high-tension switch cabinet nuclear phase, busbar grounding function solid type handcart of the present utility model is also:
As shown in Figures 2 and 3, described bus bar side ground cutter comprise ground cutter fixed contact, cutter driven shaft, cutter retainer spring, spring anchor point and bus ground cutter operating axis; Described bus ground cutter operating axis drives described ground cutter driven shaft by bevel gear group, by described ground cutter driven shaft, drives three-phase short circuit copper pipe and ground cutter moving contact to move; Between described ground cutter driven shaft and described ground cutter fixed contact, by a connecting rod, be connected; One end of the close described ground cutter driven shaft of described connecting rod is provided with ground cutter retainer spring; One end of described ground cutter retainer spring is fixed on described connecting rod, and the other end of described ground cutter retainer spring is fixed on the spring anchor point in described stand.Described bus bar side ground cutter 6 also includes contact short circuit copper pipe 65 and splitting lock cushioning pad 66.
As shown in Figure 4, one side of described stand is provided with handcart panel, is provided with ground cutter position observation window, bus bar side charged display device, line side charged display device (19), nuclear phase and ground connection switch knob K, switches nuclear phase knob K1, switches nuclear phase knob K2, switches nuclear phase knob K3, wireless nuclear phase hanging point a1, wireless nuclear phase hanging point b1, wireless nuclear phase hanging point c1, wireless nuclear phase hanging point a2, wireless nuclear phase hanging point b2, wireless nuclear phase hanging point c2, A cross streams voltmeter, B cross streams voltmeter, C cross streams voltmeter on described handcart panel.
Compared with the prior art, the utility model beneficial effect is embodied in:
Of the present utility model for high-tension switch cabinet nuclear phase, busbar grounding function solid type handcart, must not open insulation Isolation Valve for meeting the bus of Guo Wang company when charged, and the charged regulation that must not open rear cabinet door of switch cabinet outlet side, a kind of high-pressure nuclear phase device providing, to improve operating personnel's fail safe and the security risk that testing efficiency, the operation of reduction nuclear phase bring.This patent utility model has also met the not requirement of opening switch cabinet bus-bar room to bus hanging earthing conductor in addition, while having solved bus hanging earthing conductor, switch cubicle does not have ground wire mounting point, in bus-bar room, bus has insulating sleeve to articulate, because inner space is limited, can only ride over reluctantly on connecting bolt the defect of loose contact.
Integrated switched handcart of the present utility model, has not only realized electrical verification, busbar grounding function, and by plug-in strip operating mechanism, and the locking of entering mechanism of car, realized prevent misoperation function.Because of nuclear phase and busbar grounding function, can not use simultaneously, nuclear phase function and busbar grounding function are attached together on a handcart, save cost, improve the utilance of handcart, there is no in the market this kind equipment.Therefore this multi-function hand-cart has adaptability widely, can solve the various problems in production run.
This patent adopts charged demonstration capacitance sensor to measure the voltage of upper and lower section of six ports of circuit breaker, by diverter switch, homonymy power supply is not carried out with, heterogeneous nucleus pair.This test mode is safe and reliable, can avoid instrument reason nuclear phase mistake, and the phase that can locate errors, and this patent provides unlimited phasing tester mounting point, can be by unlimited phasing tester check phase place, and it is perfectly safe to accomplish.
Of the present utility model for high-tension switch cabinet nuclear phase, busbar grounding function solid type handcart, advantages such as thering is the security risk that can improve operating personnel's fail safe and testing efficiency, the operation of reduction nuclear phase and bring, saved cost, be safe and reliable.
Accompanying drawing explanation
Fig. 1 is the structure chart for high-tension switch cabinet nuclear phase, busbar grounding function solid type handcart of the present utility model.
Fig. 2 is the ground cutter divide-shut brake location drawing for high-tension switch cabinet nuclear phase, busbar grounding function solid type handcart of the present utility model.
Fig. 3 is the ground cutter transmission principle figure for high-tension switch cabinet nuclear phase, busbar grounding function solid type handcart of the present utility model.
Fig. 4 is the panel layout for high-tension switch cabinet nuclear phase, busbar grounding function solid type handcart of the present utility model.
Fig. 5 is the nuclear phase schematic diagram of the function for high-tension switch cabinet nuclear phase, busbar grounding function solid type handcart of the present utility model.
In Fig. 1～Fig. 5, label is: 1 handcart support body, 2 underframe, 3 stands, 4 bus bar side conductive arms, 5 line side conductive arms, 6 bus bar side ground cuttves, 61 ground cutter fixed contacts, 62 ground cutter driven shafts, 63 ground cutter retainer springs, 64 spring anchor points, 65 contact short circuit copper pipes, 66 splitting lock cushioning pads, 7 valve openers, 8 bus ground cutter operating axis, 9 handcart advancing mechanisms, 10 high voltage induction insulators, 11 rollers, 12 bevel gear groups, 13 three-phase short circuit copper pipes, 14 ground cutter moving contacts, 15 connecting rods, 16 handcart panels, 17 ground cutter position observation windows, 18 bus bar side charged display devices, 19 line side charged display devices, 20A cross streams voltmeter, 21B cross streams voltmeter, 22C cross streams voltmeter.
Below pass through embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
Embodiment
Referring to accompanying drawing 1～Fig. 5, for high-tension switch cabinet nuclear phase, busbar grounding function solid type handcart, it comprises handcart support body 1, bus bar side conductive arm 4, line side conductive arm 5, bus bar side ground cutter 6, valve opener 7, bus ground cutter operating axis 8, handcart advancing mechanism 9 and high voltage induction insulator 10, as shown in Figure 1;
Described handcart support body 1 comprises underframe 2 and stand 3, and described stand 3 is vertically fixed on described underframe 2; Handcart on described underframe 2, is provided with a plurality of rollers 11, so that can move in switch cubicle; On described underframe 2, be fixed with described valve opener 7, described line side conductive arm 5 is fixedly installed on the top of described valve opener 7; On described underframe 2, be also provided with a handcart advancing mechanism 9, so that described handcart is pushed or pull out switch cubicle; In described stand 3, be provided with described bus bar side ground cutter 6, bus ground cutter operating axis 8 and high voltage induction insulator 10; Described bus bar side conductive arm 4 is arranged on described high voltage induction insulator 10.
As shown in Figures 2 and 3, described bus bar side ground cutter 6 comprise ground cutter fixed contact 61, cutter driven shaft 62, cutter retainer spring 63, spring anchor point 64 and bus ground cutter operating axis 8; Described bus ground cutter operating axis 8 drives described ground cutter driven shaft 62 by bevel gear group 12, by described ground cutter driven shaft 62, drives three-phase short circuit copper pipe 13 and 14 motions of ground cutter moving contact; Between described ground cutter driven shaft 62 and described ground cutter fixed contact 61, by a connecting rod 15, be connected; One end of the close described ground cutter driven shaft 62 of described connecting rod 15 is provided with ground cutter retainer spring 63; One end of described ground cutter retainer spring 63 is fixed on described connecting rod 15, and the other end of described ground cutter retainer spring 63 is fixed on the spring anchor point 64 in described stand 3.Described bus bar side ground cutter 6 also includes contact short circuit copper pipe 65 and splitting lock cushioning pad 66.
As shown in Figure 4, one side of described stand 3 is provided with handcart panel 16, is provided with ground cutter position observation window 17, bus bar side charged display device 18, line side charged display device 19, nuclear phase and ground connection switch knob K, switches nuclear phase knob K1, switches nuclear phase knob K2, switches nuclear phase knob K3, wireless nuclear phase hanging point a1, wireless nuclear phase hanging point b1, wireless nuclear phase hanging point c1, wireless nuclear phase hanging point a2, wireless nuclear phase hanging point b2, wireless nuclear phase hanging point c2, A cross streams voltmeter 20, B cross streams voltmeter 21, C cross streams voltmeter 22 on described handcart panel 16.
The utility model discloses a kind of multi-function hand-cart of collection nuclear phase, electrical verification and busbar grounding one of central-positioned high-voltage switch cabinet, comprising band electric induction insulator, dividing potential drop electric capacity, voltmeter, homophase out-phase, select phasing tester, earthing switch blade, electromagnetic lock etc.High-tension switch cabinet is designed to locellus isolation now, the fail safe that has improved equipment, but because equipment is constructed this life reason, busbar grounding is a difficult problem, operating personnel will climb to cabinet top, pull down top closure, ability electrical verification, hanging earthing conductor.But switch cubicle does not have Earth pile-head ground wire to articulate, and has insulating sleeve in bus-bar room, bus narrow space ground wire cannot good contact, in real work, often earth connection is put into bus-bar room, contacts the bad effect that can not play protection personal security.The busbar grounding merit of this patent utility model can solve this problem.In Yi Ge transformer station, busbar grounding and nuclear phase utilization rate are low, and can not use simultaneously, in order to improve capacity utilization, this device is also integrated high-pressure nuclear phase device has can be easily to the bus bar side of circuit breaker and line side nuclear phase, at present, handcart-type electroscopic device on the market accurately can only with this phase place nuclear phase, this patent nuclear phase function is except energy and same-phase nuclear phase, also can one and different phase contrast nuclear phase, nuclear phase result is more reliable, this nuclear phase hand cart can provide wireless phasing tester mounting point in addition, can utilize wireless phasing tester check nuclear phase result.The advantages such as the property safe and reliable to operation of busbar grounding, nuclear phase hand cart raising circuit breaker, raising testing efficiency.
On handcart of the present utility model, install lower conductive arm, the end of conductive arm is provided with band electric induction insulator, and the insulator line of induction obtains the voltage of each conductive arm by direct-to-ground capacitance dividing potential drop.Handcart of the present utility model can compare the voltage of this phase and the voltage of this phase, out-phase by change over switch, carries out nuclear phase, if phase error can be judged wrong phase.
Handcart of the present utility model has electrical verification, blocking function; Bus bar side is installed charged display device, device locking earthing switch blade operating mechanism, and after three-phase bus charged display device shows without electricity, can operational grounding plug-in strip, after earthing switch blade operation, can check ground cutter mechanical location by observation window.When earthing switch blade is during in closing position, locking handcart enters mechanism of car, and handcart handle cannot be inserted.
On handcart, one group of three-phase ground device is installed at conductive arm insulator place, by one group of position keep-spring and earthing switch blade and rotation axis, formed, simple in structure, reliable in action, during separating brake, by spring, be fixed on open position, even if come off also not can false switching for rotation axis, after combined floodgate, by spring, remain on closing position, during operation, by front-end operations handle, pass through rotation axis, drive plug-in strip bearing to implement a minute closing operation.
Handcart support body and circuit breaker cart in like manner, can pass in and out switch gear room easily, have run location and test position to show, can the upper and lower valve baffle plate in opening switch chamber.
Described handcart has six of upper and lower conducting rods, band electric induction insulator is equipped with in conducting rod bottom, secondary line is by dividing potential drop capacity earth, each induction installation can sense the phase place of this phase of this side power supply, can be with heteropleural this phase of power supply or heterogeneous nucleus to voltage by diverter switch, if voltage is 10V is once homophase, if 40V is out-phase above.
The charged demonstration of handcart of the present utility model, blocking function: electrified display interlock apparatus is installed on handcart, can show that whether bus and line side be charged, as charged display device shows lockable ground of electricity cutter handle hole, avoid misoperation, after earthing switch blade operation, can check ground cutter mechanical location by observation window.When earthing switch blade is during in closing position, locking handcart enters mechanism of car handle hole, and handcart handle cannot be inserted.
Three-phase ground device is installed on described handcart; Described device divides closing operation by operating handle-power transmission shaft-plug-in strip axle.
Bus charged display device can locking ground cutter operating handle valve at bus is charged while showing electricity electromagnet, ground cutter moving contact has minute, "on" position bistable structure, there is position stability spring that ground cutter moving contact is stabilized in to separating brake or "on" position, can be because of the switch deciliter phenomenon that causes that safe distance is inadequate not in place, front end is provided with inspection hole, can check the mechanical location of ground cutter deciliter state.
The nuclear phase complete function of handcart of the present utility model, present all handcart phase checking devices can not realized homophase, out-phase contrast nuclear phase, and high-voltage nuclear phase not only homophase to check, out-phase also will be checked, other nuclear phase hand carts are without this function, this patent provides unlimited phasing tester hanging point, to doubt core result, can also check by unlimited phase checking device.Handcart of the present utility model also has minute, combined floodgate positioning function, even if functional unit bite, a minute closing operation are not very well, plug-in strip has minute, closes position retaining function, prevent that safe distance from causing fault not, after combined floodgate, have observation window observation place cutter mechanical location intuitively, bus belt electric locking function and ground cutter closing locking function can prevent misoperation effectively.
Fig. 5 is the nuclear phase schematic diagram of the function of this patent utility model, its nuclear phase process is: before nuclear phase, K diverter switch is switched to nuclear phase position, point of contact electromagnetic lock power supply, in the time of electromagnetic lock locking, also reduced the impact of electromagnetic lock coil on the phase place of induced voltage, the voltage that high voltage induction insulator senses is by after capacitance partial pressure, by bus bar side voltage and line side not in-phase voltage by diverter switch K1, K2, K3 contrasts nuclear phase, below the low about 10KV of in-phase voltage, the high about 30-40V of out-of-phase voltage, on handcart, provide a1 in addition, b1, c1, a2, b2, c2 articulates wireless nuclear phase point, can articulate wireless phasing tester, check that whether nuclear phase hand cart nuclear phase is accurate.
Claims (3)
1. for high-tension switch cabinet nuclear phase, busbar grounding function solid type handcart, it is characterized in that, comprise handcart support body (1), bus bar side conductive arm (4), line side conductive arm (5), bus bar side ground cutter (6), valve opener (7), bus ground cutter operating axis (8), handcart advancing mechanism (9) and high voltage induction insulator (10);
Described handcart support body (1) comprises underframe (2) and stand (3), and described stand (3) is vertically fixed on described underframe (2); Handcart on described underframe (2), is provided with a plurality of rollers (11), so that can move in switch cubicle; On described underframe (2), be fixed with described valve opener (7), described line side conductive arm (5) is fixedly installed on the top of described valve opener (7); On described underframe (2), be also provided with a handcart advancing mechanism (9), so that described handcart is pushed or pull out switch cubicle; In described stand (3), be provided with described bus bar side ground cutter (6), bus ground cutter operating axis (8) and high voltage induction insulator (10); Described bus bar side conductive arm (4) is arranged on described high voltage induction insulator (10).
2. according to claim 1 for high-tension switch cabinet nuclear phase, busbar grounding function solid type handcart, it is characterized in that, described bus bar side ground cutter (6) comprise ground cutter fixed contact (61), cutter driven shaft (62), cutter retainer spring (63), spring anchor point (64) and bus cutter operating axis (8); Described bus ground cutter operating axis (8) drives described ground cutter driven shaft (62) by bevel gear group (12), by described ground cutter driven shaft (62), drives three-phase short circuit copper pipe (13) and ground cutter moving contact (14) motion; Between described ground cutter driven shaft (62) and described ground cutter fixed contact (61), by a connecting rod (15), be connected; One end of the close described ground cutter driven shaft (62) of described connecting rod (15) is provided with ground cutter retainer spring (63); It is upper that described connecting rod (15) is fixed in one end of described ground cutter retainer spring (63), and the other end of described ground cutter retainer spring (63) is fixed on the spring anchor point (64) in described stand (3).
3. according to claim 1 for high-tension switch cabinet nuclear phase, busbar grounding function solid type handcart, it is characterized in that, one side of described stand (3) is provided with handcart panel (16), on described handcart panel (16), be provided with ground cutter position observation window (17), bus bar side charged display device (18), line side charged display device (19), nuclear phase and ground connection switch knob K, switch nuclear phase knob K1, switch nuclear phase knob K2, switch nuclear phase knob K3, wireless nuclear phase hanging point a1, wireless nuclear phase hanging point b1, wireless nuclear phase hanging point c1, wireless nuclear phase hanging point a2, wireless nuclear phase hanging point b2, wireless nuclear phase hanging point c2, A cross streams voltmeter (20), B cross streams voltmeter (21), C cross streams voltmeter (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420195103.3U CN203787835U (en) | 2014-04-21 | 2014-04-21 | One-piece handcart used for phasing and bus grounding of high tension switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420195103.3U CN203787835U (en) | 2014-04-21 | 2014-04-21 | One-piece handcart used for phasing and bus grounding of high tension switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203787835U true CN203787835U (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420195103.3U Withdrawn - After Issue CN203787835U (en) | 2014-04-21 | 2014-04-21 | One-piece handcart used for phasing and bus grounding of high tension switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203787835U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904578A (en) * | 2014-04-21 | 2014-07-02 | 国网安徽省电力公司淮南供电公司 | Integrated handcart with phase testing function and bus grounding function for high-voltage switch cabinet |
| CN107732744A (en) * | 2017-03-24 | 2018-02-23 | 国网甘肃省电力公司兰州供电公司 | A kind of electrical verification earth handcart device |
-
2014
- 2014-04-21 CN CN201420195103.3U patent/CN203787835U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904578A (en) * | 2014-04-21 | 2014-07-02 | 国网安徽省电力公司淮南供电公司 | Integrated handcart with phase testing function and bus grounding function for high-voltage switch cabinet |
| CN103904578B (en) * | 2014-04-21 | 2016-02-24 | 国网安徽省电力公司淮南供电公司 | For high-tension switch cabinet nuclear phase, busbar grounding function solid type handcart |
| CN107732744A (en) * | 2017-03-24 | 2018-02-23 | 国网甘肃省电力公司兰州供电公司 | A kind of electrical verification earth handcart device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140820 Effective date of abandoning: 20160224 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |