Indoor High Voltage AC Switchgear Panel
KYN28-12 type indoor AC metal armored medium-sized switchgear. The utility model is suitable for a three-phase AC power system with a rated voltage of 12kV and a rated frequency of 50Hz, and is used for receiving and distributing electric energy and controlling, protecting and monitoring...
Description
KYN28-12 type indoor AC metal armored medium-sized switchgear. The utility model is suitable for a three-phase AC power system with a rated voltage of 12kV and a rated frequency of 50Hz, and is used for receiving and distributing electric energy and controlling, protecting and monitoring circuits.
The switchgear is designed according to the armored metal enclosed switch cabinet in GB3906-91. The whole is composed of two parts: the cabinet and the central extractable part. The cabinet is divided into four independent compartments, and the protection level of the cabinet is IP4X. When the door of each small room and circuit breaker room is opened, it is IP2X. Through overhead access lines and cable access, lines and other functional solutions are arranged and combined to form a complete power distribution system equipment. The switchgear can be installed, debugged and maintained from the front, so it can be back-to-back, dual arrangement and wall-mounted installation, which improves the safety and flexibility of the switchgear and reduces the floor space.
Main technical parameters | |||
Rated voltage | ..................................... | kV | 3.6,7.2,12 |
Rated frequency | ..................................... | Hz | 50 |
Rated current of circuit breaker | ..................................... | A | 630/4000 |
Rated current of switchgear | ..................................... | A | 630/4000 |
Rated short-time withstand current (4S) | ..................................... | kA | 20,25,31.5,40 |
Rated peak withstand current (peak) | ..................................... | kA | 50,63,80,100 |
Rated short-circuit breaking current | ..................................... | kA | 20,25,31.5,40 |
Rated insulation level 1min power frequency withstand voltage | Pole-to-pole, pole-to- ground | kV | 24,32,42 |
Between open contacts | kV | 24,32,48 | |
Lightning impulse withstand voltage (peak) | Pole-to-pole, pole-to- ground | kV | 40,60,75 |
Between open contacts | kV | 46,70,85 | |
The shell is IP4X, and it is IP2X when the compartment door and circuit breaker chamber door are opened | |||
Main application
The intermediate switchgear is used in power distribution equipment with three-phase alternating current 50Hz and rated voltage 12kV. It is widely used in cable loops in the processing industry as well as civil and power supply terminals. It is especially suitable for small secondary power distribution stations, sectioned road sections, industrial and mining enterprises, urban residential quarters, airports, railways, tunnels, high-altitude buildings, etc., for power systems such as power reception and distribution.
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