Main features:
Switch equipment adopts to assembled structure, circuit breakers adopts to hand-car floor structure; allocated to new type of insulation vacuum circuit breakers and have a good interchangeability and easy to be changed as features. Frame-hand car in advance with screw nut, can be easily move hand car, and to prevent misuse and damage impel structural. All the operations can be carried out with door closed. Main switch, hand cars, switching between the chain door adopt mandatory mechanical locking way to meet the "five-prevent" feature. Cable room has an ample space, can connect many cables .Quick ground switch used to grounding and short-circuit loop. Shell level of security IP3X.When the door of hand car room is open, the level of security IP2X, products line with GB3906-1991, DL404-1997 and reference to the application of international standards IEC-298.
Relay Meter Room: KYN61-40.5 (Z)-indoor high-voltage vacuum switchgear (hereinafter referred to Switch equipment) is indoor distribution device of the three-phase AC 50 Hz, rated at 40.5 KV. Used in power plants, substations and distribution of industrial and mining enterprises for accepting and allocating power, with control, protection and detection capabilities, can also be used to frequent operated place. The switch equipment lines with GB/T11022-1999, GB3906-1991 and DL404-1997 standards.
l temperature: ceiling +40 ℃, and 24 h in the average no more than 35 ℃, minimum -10 ℃.
l Altitude: not more than 1,000 meters.
l relative temperature: on day-average no more than 95 percent, on month-average no more than 90 percent.
l earthquake intensity: no more than 8 degree.
l water vapour pressure: on day-average less than 2.2 kPa, on month-average no more than 1.8 kPa.
l no fire, explosion hazards, seriously filthy, chemical corrosion and violent vibration of places.
Switch equipment structure: Switch equipment is designed according to armoured metal closed switching equipment standards in GB3906-1991 and IEC298. Switch equipment overall and by taking part (hand cars) composed of two parts. Switch equipment structure assembled with bolts to bolt combination of molding. Metal partition will begin with separate counters for the internal circuit breaker room, main bus room, cable room and meter relay room. Shell level of security IP3X, all at room between the level of security IP2X, and all the metal structure of a reliable ground, the main circuit of the system at a separate room to release the pressure of the exhaust channel.
Shell and partition: Shell and partition of switchgear is used by cold-rolled steel processing and CNC machine tools after bending to bolt from. So assembled Switch equipment can guarantee the uniformity of size. Switchgear was at the circuit breaker room, the main bus room, cable room and meter relay room, all parts are separated by earthed metal partition.
Hand car:-hand cars can be divided circuit breakers-hand car, fuse-hand car, fuses and lightning arrest-hand car, segregation-hand cars into in accordance with use, all types of the same size as the shape-hand car, the same purpose-hand car with interchangeability . Hand cars have test isolated location and work location, and each time have a position interlock devices to ensure that hand car could not be mobile away from two locations.
Breaker compartment: indoor circuit breaker installed at the track for a specific mobile-hand car. Breaker in the pilot position and move between work locations, the isolation valve to automatically turn on or off, security personnel do not touch the charged body. Hand car can operated with door closed, can be seen through the observation window in Switch equipment position, and see-hand car on the functions of signs.
Bus small rooms: the main bus switching from one counter to another switchboard with branches on the bus through the Contact box fixed and static, in the neighborhood across the counter at the sides with the mother casing fixed. All bus used manner of insulation.
Cable Room at: indoor cables can be installed PT, earth switches, lightning arrester and multi-roots power.
Relay Room: broken electrical room and board control panel can be installed, the protection of components, measurement, display instruments, live monitoring indicators such as secondary component.
Interlock devices:
The customs counters with reliable interlock devices, and earnestly safeguard the operation of security personnel and equipment:
l When the earth switch at the gate location, can hand car from the test / isolated location moved to the work location and can not open the back door, preventing the enter-error charged interval.
l When the counter-hand car pulled out completely, or at-hand car in the cabinet test / isolated location and unlock the earth switch chain, can switch on the earth switch operation; hand car at work here, can switch on the earth switch Operation; hand car in the work place, the earth switch can not be closed. Charged to prevent the misuse of the earth switch to prevent the earth switch in the closed position will go to work hand car location.
l breaker hand in the test / isolated location or work location, can operate circuit breakers; circuit breaker switch on and after-hand cars can not be moved to prevent the misuse of the load push-pull circuit breakers.
l Electric chain can be installed between the Switch equipment.
Grounding devices:In the cable room, alone with 6 X500mm2 the grounding bus, the bus runs through adjacent to the cabinet, and contact Switch equipment well.
Switch equipment Dimensions: Dimensions (width X depth X high): 1400 mm X 2800 X 2600.
