CN2153887Y - Explosion-proof high pressure vacuum distributor and vacuum switch - Google Patents

Abstract

The utility model discloses an explosion-proof high pressure vacuum distributor and vacuum switch which is used for controlling and protecting power circuits in the downholes of the coal mines of mine industry, and the utility model is composed of a box body, a door, a connecting flange, a vacuum switch, a current mutual inductor, a three-phase potential mutual inductor, a small car body, etc. A partition board is arranged in the middle of the box body; the front cavity of the small car body is provided with a vacuum circuit-breaker, the three-phase potential mutual inductor, a high-pressure relay protection device, etc.; the partition board of the box body is provided with six static contact terminal seats and two wall-through type wire holders with seven cores. The utility model has the advantages of reasonable structure and configuration, agile model selection and exchange, strong adaptability, reliable installation, small ground occupation, low cost and convenient construction, and the utility model has protection function and can be used by the combination of a plurality of the devices.

Description

Explosion-proof high pressure vacuum distributor and vacuum switch

The utility model is to be used for fixed flame proof high-voltage vacuum distribution equipment and the flame proof mobile substation high-pressure vacuum switch that the power circuit under the mine industry coal mine is controlled and protected.

The control and the protective device of the power circuit in the at present domestic and international mine industry under the coal mine do not have desirable solution so far.A circuit scheme of the power distribution equipment that manufactures and designs now is more single, can not join platform and use, and does not have interchangeability; bad adaptability, floor space is big, the cost height; install and constructional difficulties; mobile substation applied load switch does not have safeguard measure, often breaks down or operation in spite of illness; the spoilage height; use maintenance difficult, therefore, develop a kind of flame proof high-voltage vacuum distribution equipment and vacuum switch is new problem anxious to be solved both at home and abroad always.

The purpose of this utility model provides that a kind of topology layout is reasonable, type selecting is exchanged flexibly and adaptability is strong, can join that platform uses, defencive function install reliable, floor space is little, cheap, installation is easy to flame proof high-voltage vacuum distribution equipment and vacuum switch.

The purpose of this utility model is achieved in that whole device is by casing; door; adpting flange; power channel; introducing device and elbow; circuit breaker deciliter indication; voltmeter; the protection display lamp; ammeter; the breaker open operation button; test and reset button; seven core junction blocks; the stationary contact headstock; moving contact; vacuum circuit-breaker; the high pressure protective relaying device; threephase potential transformer; current exchanger; high-pressure insulator; current transformer; little car body; piezo-resistance is formed; chamber before and after dividing plate in the middle of the casing is divided into casing; at ante-chamber little car body is housed; vacuum circuit-breaker; threephase potential transformer; current transformer; piezo-resistance; the high pressure protective relaying device; movable contact is first-class to be installed on the little car body; six stationary contact headstocks and two wall-penetrating type seven core junction blocks are housed on the casing central dividing plate; there are three conducting rods on back cavity top as running through on the big insulating base that bus is fixed on the casing biside plate; the outgoing passage is arranged at the back cavity bottom; adpting flange is connected with the dry-type transformer primary side; port at lead-in is equipped with current transformer, and the front of casing is a hinged door.The inlet wire of power distribution equipment and bus contact cabinet, advance in the wire cavity to adopt the High-Voltage Insulation line to connect at two, a left side or right side inlet wire connect the vacuum switch end of incoming cables through insulated wire, again through leading-out terminal to another big insulation of power distribution equipment, connect another by terminal box again, constitute the direct connection of interstation.The side mounting flange of vacuum switch is connected with high-pressure side, mobile substation flange, and employing feeds out high voltage source and links to each other through the flange chamber of power channel to vacuum switch from wire cavity with the High-Voltage Insulation line.The door of power distribution equipment and vacuum switch adopts a special bolt to close fast and opens the door, structure be horizontal draw to connect open the door, the nut on the door is that high strength has and moves translot, a side milling has circular hole belt length groove structure.Main points of the present utility model are its connection platform structure and protective device.Its operation principle and method of operation are: power supply is sent into power distribution equipment and vacuum switch, through last isolation latch, vacuum circuit-breaker, isolate latch down and export load to.Adjusting according to the insulation level of power distribution equipment and vacuum switch institute's on-load and circuit of high pressure protective relaying device adjusted respectively to electric leakage, overload and short circuit.The insulation monitoring protection is to adopt the double shield Plastic-sheathed Cable with pilot wire, and the terminal resistance that is connected on back cavity is moved between cable termination pilot wire and ground wire.The toy trumpet mouth is drawn control line, closes before the chamber door, and each connector assembly of secondary line should be pegged graft intact.Circuit breaker is kept apart also and can be closed a floodgate or sub-switching operation at gate-dividing state.Stab contact is at " breaking " or " closing " two positions, and circuit breaker can carry out closing operation.Send electric program to be: close chamber door, stab contact closes a floodgate, and voltmeter indicates rated voltage numerical value, breaker closing, and run indicator is bright, presses each test button, and viewing lamp checks whether the work of high pressure protective relaying device is normal.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the cutaway view of the left view of Fig. 1.

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

Fig. 4 is a circuit conceptual scheme of the present utility model.

With reference to accompanying drawing; an introducing device and elbow 3 are adorned in the left side of the casing 22 of power distribution equipment and vacuum switch; introducing device and elbow 3 bottoms dress power channel 2; side load connection orchid 1; adpting flange 1 links to each other with flame proof mobile substation or transformer station's flange; deciliter indication 4 of the positive placement of casing circuit breaker; voltmeter 5; protection display lamp 6; ammeter 7; breaker open operation button 9; casing 22 ante-chambers are placed dolly body 19; place moving contact 12 on the dolly body 19; vacuum circuit-breaker 13; high pressure protective relaying device 14; threephase potential transformer 15; power pack 16; current transformer 18; piezo-resistance 20; place seven core wiring flanges 10, stationary contact headstock 11 on casing 22 dividing plates; high-pressure insulator 17; door 21 is hinged with casing 22.

The utility model compared with prior art has that topology layout is reasonable, floor space is little, defencive function is perfect, exchange and strong adaptability, is convenient to the advantage of installing and constructing, and this device will be widely used in the mine industry.

Claims (3)

1; a kind of flame proof high-voltage vacuum distribution equipment and vacuum switch; by casing; door; adpting flange; power channel; introducing device and elbow; circuit breaker deciliter indication; voltmeter; the protection display lamp; ammeter; the breaker open operation button; test and reset button; seven core junction blocks; the stationary contact headstock; moving contact; vacuum circuit-breaker; the high pressure protective relaying device; threephase potential transformer; current exchanger; high-pressure insulator; current transformer; little car body; piezo-resistance is formed; it is characterized in that the dividing plate in the middle of the casing is divided into the chamber, front and back with the bar body; at ante-chamber little car body is housed; vacuum circuit-breaker; threephase potential transformer; current transformer; piezo-resistance; the high pressure protective relaying device; movable contact is first-class to be installed on the little car body; six stationary contact headstocks and two wall-penetrating type seven core junction blocks are housed on the casing central dividing plate; there are three conducting rods on back cavity top as running through on the big insulating base that bus is fixed on the casing biside plate; the outgoing passage is arranged at the back cavity bottom; adpting flange is connected with the dry-type transformer primary side; port at lead-in is equipped with current transformer, and the front of casing is a hinged door.

2, flame proof high-voltage vacuum distribution equipment according to claim 1 and vacuum switch, the side mounting flange that it is characterized in that said vacuum switch, be connected with high-pressure side, mobile substation flange, employing feeds out high voltage source and links to each other through the flange chamber of power channel to vacuum switch from wire cavity with the High-Voltage Insulation line.

3, flame proof high-voltage vacuum distribution equipment according to claim 1 and vacuum switch, the door that it is characterized in that said power distribution equipment and vacuum switch adopts special bolt to open the door the pass fast, structure is a drag link interlock quick operating valve, nut on the door is that high strength has and moves translot, and a door side milling has circular hole belt length groove structure.

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