MV KYN28A-12 (GZS1) Metal-clad Movable Switchgear with Advanced Interlocking Functions

MV KYN28A-12 (GZS1) metal-clad movable switchgear is a three-phase, AC, 50 Hz complete power distribution device of single bus-bar and its sectional system. This kind of switchgears are mainly used to control, protect and monitor circuits for power plants, power transmission of medium & small generators, industrial & mining establishments power distribution, power acceptance & transmission of secondary substations in power systems and large high voltage electromotor starting. It meets the standards of IEC298 and GB3906. It has interlocking functions of preventing from moving circuit breaker handcart with load, preventing from opening & closing circuit breaker by mistake, preventing from opening & closing circuit breaker while the earthing switch is at closing position, preventing from straying into charged compartment and preventing from closing earthing switch by mistake while it is charged.

Several MV KYN28A-12 (GZS1) metal-clad movable switchgears are in the workshop.
MV KYN28A-12 (GZS1) metal-clad movable switchgear is mainly used to control, protect and monitor circuit.Several workers are assembling MV KYN28A-12 (GZS1) metal-clad movable switchgears.
MV KYN28A-12 (GZS1) metal-clad movable switchgears are widely used for power plants and industrial & mining establishments.
Working conditions:

Temperature range: -25 °C to +40 °C.
Relative air humidity: daily: ≤ 95%, monthly: ≤ 90%.
Altitude: ≤ 1000 m.
Seismic intensity: ≤ 8 degree.
The workplaces should be free of fire, explosion, heavy pollution, chemical corrosion and severe vibration.
Note: we can manufacture customized products according to customers' requirements.

The model and meaning of MV KYN28A-12 metal-clad movable switchgear.
Technical parameters
Items    Parameters
Rated voltage (kV)    3.6, 7.2, 12
Rated insulation level    1 min power frequency withstand voltage (kV)    42
Lightning impulse withstand voltage (kV)    75
Rated frequency (Hz)    50
Main bus-bar rated current (A)    630, 1250, 1600, 2000, 2500, 3150
Branch bus-bar rated current (A)    630, 1250, 1600, 2000, 2500, 3150
4 s thermal stability current (effective value) (kA)    16, 20, 25, 31.5, 40, 50
Rated dynamic stable current (peak value) (kA)    40, 50, 63, 80, 100, 125
Protection degree    Enclosure: IP4X, opening: IP2X.

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