21
respectively.
(10)
Caution
!
When resistor brake occurs, it will cause heat. Installation location must be in a
ventilated place.
(11)
Suggest L, N go through 1:1 isolation transformer to utility 220V/(50Hz or 60Hz).
※
Recommended specifications
(1)
Automatic short circuit brake switch
:
Consists of three relays, each relay stands 30A and above,
coil start voltage 220V.
(2)
Automatic resistor brake switch
:
Consists of three relays, each relay stands 30A and above, coil
start voltage 220V.
(3)
Resistor box
:
Consists of three 3
Ω
/1KW for Y connection.
(4)
Lightning device
:
Capacity of lightning device is related to distance of wind turbine and power
distribution board INVERTER, please refer to electrical engineering regulations.