Summary

KYN18-12 armoured removing type metal closed switch equipment for three-phase AC 50Hz, rated voltage of 12kV, rated current 3150A of electric power system for acceptance and distribution of electric energy and the circuit implementation of control, protection and monitoring.

Conditions of use

1 ambient air temperature does not exceed 40 degrees, and no more than 35 degrees Celsius over the average value of 24h was measured, the minimum air temperature around -25 degrees.

2 altitude is not more than 1000m.

3 ambient air is not significantly contaminated by dust, smoke, corrosive and flammable gases, vapors or salt mist.

4. The relative temperature: no more than 95% of the mean value in the 24 h was measured relative to the temperature, in 24 hours was measured water vapor pressure average value does not exceed shall, monthly relative humidity average value does not exceed 90%, water vapor pressure average no more than 1.8kpa.

5 when the device is installed with the vertical tilt of not more than 5 degrees.

6 equipment shall be installed in the place where there is no violent vibration and shock.

Structure characteristics

Armoured KYN18-12 type movable metal closed switch device consists of a cabinet body and a movable part (the car) two parts.

1 cabinet:

This type of switchgear cabinet is separated by thin steel plate as the main bus room, car room, cable (current transformer room). Each room is equipped with relay room car to the top of the cabinet of independent exhaust channel, when the cabinet due to accidents when the pressure increases, the movable cover plate on top of the cabinet will be opened automatically, so that the pressure of gas directional emission the car is arranged in the middle of a room. Suspended car track, the left orbit, mechanism and car movement guiding device is also provided with an opening and closing the main circuit contact box shielding curtain plate. The right side of the track, the grounding device is provided with a trolley and prevent the car slip limiting mechanism, such as the switch cabinet is provided with a grounding switch, grounding switch the actuator and the mechanical interlock is also located in the middle of the right side of the car room, the car pushing mechanism and the cabinet body connecting device is disposed on the switch cabinet around before the middle of the column. The partition trolley chamber and the busbar chamber and a cable chamber is arranged on the main circuit of the static contact box, When the car is not in the cabinet, the curtain board activities cover is made of a thin steel plate main loop static contact. When the car enters, make contact smoothly connected automatically open the movable curtain board. The main bus chamber install three-phase rectangular busbar. If the user needs the cabinet main bus bar chamber through the insulating sleeve through the main bus bar installation the main bus room, cabinet asked was separated. The cable compartment at the bottom of a cable inlet and cable fixed channel, cable imports covered by a detachable cover plate. The cable compartment can also be installed. The grounding switch relay room, relay relay chamber is provided with a mounting plate, can be installed protruding each relay, a variety of measuring instruments, installation relay room door switch, signal device, the chamber is arranged on the top of a small bus terminal, a 13 copper busbar, lower chamber can install the connector, terminal installation bracket is fixed on the cabinet of the switch cabinet. In the face of the arrangement, the two sets of cabinets are connected by a bus bridge, and the bus bridge is a closed structure which is made of thin steel plate.

2 car:

Suspension type structure is the switching equipment of car, car wheel, a guide device, grounding device, etc., are set to in in the middle of two sides of the car. The main circuit of a car moving contact the rated current of the car is different, can divide for 1250A, 1600, 2000a, 2500A, 3150AE files, can be in 4S rated thermal stability current at 31.5KA, rated dynamic stability current 80kA to the reliable operation of the system is ensured.