INBUILT PROTECTION DEVICES
MCB (Miniature Circuit Breaker)
MCB isolate power supply of unit and the main source power supply, if shutdown
of unit is required. It protects unit in case of electrical short circuit and overload
condition by tripping.
[3 Pole and neutral “TPN”: Siemens /Protec /Schneider make]
Pressure Switch (R-410 A)
Trip the machine when refrigerant pressure go high/low than the setting limits
IN 22 HP ,VMD PCB: VMD is an electronic device which protects against 3 Ph
parameters. There is inbuilt feature of VMD which provides delay for compressor
“ON” after rectification of any mentioned faults in power supply (above) as per
described logic.
Contactor is 3 Pole 40 Ampere Make CHINT, is used to run Drive Power.
Voltage Scanner is an electronic device which gives protection against following
electrical (3-phase) parameters: Single phasing, Under voltage, Over voltage,
Phase unbalance, Phase sequence Error.
To Next Page
Loading...
