CN2088750U - Double-bus stationary high voltage switch cabinet - Google Patents

Abstract

The utility model relates to a double-bus fixing high voltage switch cabinet, comprising a cabinet body, an insulator, a relay, a high voltage isolating switch, a hand power operating mechanism, a high voltage circuit breaker, a direct current magnetic operating mechanism, a current mutual inductor, etc. The utility model is characterized in that the top and the bottom of the cabinet are provided with movable cover plates, the position where a sub-bus passes through is provided with an insulating laminated plate. The hand power operating mechanism is separated from the ground about 1300 mm, the breaker and the operating mechanism are both arranged on the front surface of the cabinet, and the cabinet body is not provided with fire retardant organic glass windows. The utility model has the advantages of safe and convenient installation, overhaul and use.

Description

Double-bus stationary high voltage switch cabinet

The utility model belongs to high pressure power supplying and distributing equipment technical field, and it relates to a kind of double-bus fixed high-voltage switch cubicle technology category.

Find the product identical in the art, as yet existing with the utility model, the double-bus fixed high-voltage switch cubicle of present domestic use, as " power engineering design manual " the 3rd 1528 pages GSG-1A-03 type switch cubicles to 1529 pages of introductions, because there is following shortcoming in unreasonable structure:

(1) the switch cabinet top is provided with high-voltage wall bushing, in the High-Voltage Electrical Appliances element with the power supply insertion switch cabinet inside in the main bus bar of cabinet top, so its high voltage source is in charged state for a long time and can't disconnects in cabinet, so when the circuit breaker in cabinet and other electric elements need overhaul, insert a safety screen, thus science not very, and also very dangerous to operating personnel, this baffle plate area is big simultaneously, so operating personnel have been brought heavy operating process.

(2) the manual-operating mechanism handle of switch cubicle hangs down the person about 700mm, so this is a kind of drawback that this type switch cubicle exists for a long time in operation inconvenience (generally highly being about 1300mm) with having only distance.

(3) direction of being arranged to back-to-back 180 degree of circuit breaker and operating mechanism thereof is so it is all made troubles to debugging and maintenance.

(4) not have shrouding be whole worn-out open types in the bottom of switch cubicle, brings unsafe factor for Maintenance and Repair and installation personnel, falls for easily the maintenance installation personnel and get injured by a fall in cable trough, also is easy to scurry into toy and causes the accident.

(5) though existing market has had follow-on structure, but its basic structure is still prolonged and has been used the out-moded convention not have other differences, only improved high-voltage wall bushing structure partly, reduce maintenance and inserted baffle plate, but wherein the loop of the power supply of the electricity of a road in the double-bus, another road interruption maintenance is owing to be subjected to the influence of foldback electricity, so a road of power failure can't be overhauled and clean, and does not reach the characteristics and the requirement of double-bus fixed high-voltage switch cubicle.

The purpose of the utility model double-bus fixed high-voltage switch cubicle, be in order to overcome the shortcoming that the existing double-bus fixed high-voltage switch cubicle of existing market exists, and provide a kind of novel switch cubicle, make installation, repair and maintenance maintenance be safe ready, to guarantee the long period safe power supply, to avoid personnel's hot line job, reduce personnel's industrial injury and equipment breakdown.

The purpose of this utility model is achieved in that the top of switch cubicle is provided with cover plate, and the place of passing at high voltage bus is provided with insulating laminated sheet; Circuit breaker and direct solenoid operating mechanism thereof all are arranged on the frontal of switch cubicle; The hand-power operating mechanism of high voltage isolator is arranged on the height of suitable operation in switch cubicle front, generally about 1300mm; Switch cubicle just, the back side is provided with fire-retardant polymethyl methacrylate supervision window.It is existing that details are as follows:

(1) top of switch cubicle and bottom cover with active cover plate, are provided with the insulation quarantine measures of insulating press boards in the place that the high pressure branch bar passes through, to guarantee installation and maintenance personal's personal safety.

(2) the relay install bin is equipped with in the switch cubicle front, the hand-power operating mechanism, and electromagnetic lock, the direct solenoid operating mechanism, fire-retardant polymethyl methacrylate supervision looking glass and observation window are so that supervise the operational outfit inspection.

Circuit breaker and other electric elements are equipped with in the positive inside of switch cubicle, the outlet cable, and control cable all is installed on the latter half of of switch cubicle.

Such layout is not only brought clean and tidy sense to switch cubicle, simultaneously to the maintenance circuit breaker, and the debugging of relaying protection, maintenance operation all brings convenience.

Two in incandescent bulb bright lamp is housed, so that to the usefulness of switch cubicle rolling inspection in the switch cubicle.

(3) overall structure of switch cubicle, (generally be welded with angle steel (generally with L50 * 50 * 5) and steel plate with δ=1～3mm), the integral body of switch cubicle is divided into four districts, the top is double-bus three-phase high-voltage bus district, top angle mount high voltage isolator is subjected to voltage, the first part is the electric elements battery limits, circuit breaker is housed, current transformer, electrical relaybox, closing contactor, latter part be the cable outlet district, line disconnecting switch, terminal board case be housed, thus the global switch cabinet make a distinction between the important and the lesser one, clean and tidy, attractive in appearance.

(4) observation window is equipped with at the back side of switch cubicle, terminal board chamber door, and the back gate of switch cubicle, and switch cubicle two sides are isolated as shrouding with steel plate, isolate to prevent the fire prevention between the switch cubicle that electric arc (during accident) causes, to guarantee the safe operation of transformer station.

(5) shrouding of global switch cabinet and door are flanging and are welded, and its hinge is concealed installation, so the global switch cabinet is very attractive in appearance.

Further set forth concrete enforcement of the present utility model below in conjunction with accompanying drawing.

Fig. 1 is a kind of cross-sectional view of the present utility model.

Wherein: 1---switch cubicle main body top longeron, 2---switch cubicle main body pedestal longeron, 3---switch cubicle main body column, 4---isolating switch is installed supporting plate, 5---switch cubicle body element mounting bracket, 6---the relay install bin, 7---the terminal board case, 8---anti-circuit breaker water clock food tray, 9---the main bus bar high pressure is presided over insulator, 10---branch bar, 11---the circuit high voltage isolator, 12---the hand-power operating mechanism, 13---primary cut-out, 14---the direct solenoid operating mechanism, 15---the breaker operation mechanism link rod, 16---interelement connects bus, and 17---current transformer, 18---cabinet intraoral illumination lamp, 19---the breaker closing contactor.

Fig. 2 is a kind of Facad structure schematic diagram of the present utility model.

Wherein: 20---main bus bar, 10---branch bar (facing), 9---the main bus bar high pressure is presided over insulator (facing), 21---fire-retardant polymethyl methacrylate supervision window, 22---relay is installed chamber door, and 23---electromagnetic lock, 24---observation window, 25---the positive door of switch cubicle, 14---direct solenoid operating mechanism (facing), 26---closing contactor installation and maintenance door.

Fig. 3 is a kind of structure schematic diagram of the present utility model.

Wherein: 27---secondary main bus bar, 10---another group of branches bus (facing), 28---secondary main bus bar high pressure is presided over insulator (facing), 21---fire-retardant polymethyl methacrylate supervision window, 29---the switch cubicle back gate, 30---the active shrouding of safety, 24---observation window, 31---the terminal board chamber door.

Fig. 4 is a kind of base plane schematic diagram of the present utility model.

Wherein: 32---switch cubicle main body pedestal crossbeam, 2---switch cubicle main body pedestal longeron, 33---the power cable fixed support, 34---the control cable fixed support, 35---active cover plate, 36---combined floodgate cable fixed support.

Fig. 5 is a kind of schematic top plan view of the present utility model.

Wherein: 37---switch cubicle main body top cross-bar, 1---switch cubicle main body top longeron, the active cover plate in 38---passing the branch bar insulating laminated sheet, 39---switch cubicle main body tops, 40---switch cubicle main body top bracket beam.

Referring to accompanying drawing: whole switch cabinet body comprises front (B), the back side (B '), two sides, top and bottom, in conjunction with Fig. 1: cabinet inside is provided with high voltage isolator supporting plate 4 is installed, high voltage isolator 11 is installed on it, and high voltage isolator 11 is communicated with cabinet top main bus bar by branch bar 10 or secondary main bus bar is subjected to.High voltage isolator is driven by hand-power operating mechanism 12, links with primary cut-out 13 by connecting bus 16 simultaneously.The frontal of switch cubicle main body mounting bracket 5 (A direction) is provided with primary cut-out 13, and is provided with anti-circuit breaker water clock food tray 8.

Primary cut-out 13, current transformer 17, high voltage isolator 11, (being contained in support 5 is the A direction in the other direction) connects bus 16 by interelement and links.Primary cut-out 13 links by breaker operation mechanism link rod 15 and direct solenoid operating mechanism 14, and by its driving.

Be provided with dress relay in the relay install bin 6(at switch cabinet body front (B) inner edge), breaker closing contactless box 19 and illuminating lamp 18, the back side (B ') inner edge is provided with terminal board case 7 and illuminating lamp 18.

In conjunction with Fig. 2, be provided with fire-retardant polymethyl methacrylate supervision window 21, observation window 24, positive door 25 in the front of switch cubicle, hand-power operating mechanism (three) 12(that two sides of door 25 are provided with the suitable operation of height off the ground (being generally about 1300mm) faces), electromagnetic lock 23, direct solenoid operating mechanism 14(faces), relay is pressed loading door 22, closing contactor chamber door 26, be provided with main bus bar 20 at switch cubicle frontal top, and main bus bar high pressure hosting insulator 9(faces), a group of branches bus 10.

In conjunction with Fig. 3,, be provided with fire-retardant polymethyl methacrylate supervision window 21, observation window 24, back gate 29, the active shrouding 30 of safety at the back side of switch cubicle; Direction top, the back side is provided with secondary bus 27 and secondary bus is presided over insulator 28, another group of branches bus 10.Terminal board case 31.

In conjunction with Fig. 4, be provided with switch cubicle main body pedestal crossbeam 32 in the bottom of switch cubicle, pedestal longeron 2, power cable fixed support 33, control cable fixed support 34, combined floodgate cable fixed support 36, active cover plate 35.

In conjunction with Fig. 5, be provided with switch cubicle main body top cross-bar 37 in the switch cubicle bodies top, top longeron 1, switch cubicle main body top joist 40, the active cover plate 39 in top passes the insulating laminated sheet 38 of branch bar, (being active structure).

Claims (3)

1, a kind of double-bus high-tension switch cabinet, the insulator, electrical relaybox (interior dress relay), the high voltage isolator that comprise the hosting high voltage bus that is arranged on cabinet and inside thereof reach by connecting the coupled primary cut-out of bus and driving its hand-power operating mechanism, the direct solenoid operating mechanism that passes through breaker operation mechanism drive links circuit breaker, current transformer etc., it is characterized in that: the top and the bottom of cabinet are provided with cover plate, and the place of passing the branch bus is provided with insulating laminated sheet; The hand-power operating mechanism of high voltage isolator be arranged on the switch cubicle front apart from the height that suits to operate; Circuit breaker and direct solenoid operating mechanism thereof are arranged on the frontal of switch cubicle; Switch cubicle just, the back side is provided with fire-retardant polymethyl methacrylate supervision window.

2, switch cubicle as claimed in claim 1 is characterized in that the insulating laminated sheet that is arranged on the cover plate of top and bottom and passes the branch bus is active structure.

3, switch cubicle as claimed in claim 1 is characterized in that: the hand-power operating mechanism of high voltage isolator is arranged on the height about the positive identity distance of switch cubicle ground 1300mm.

Images