69
PWS Starting features
1. The starting current is around 40% ~ 70% of full-winding Locked Rotor Current. It depends on the design and
motor size.
2.
Low starting torque.
Direct On Line start
A:PTC
B:Pt100Ω / Pt1000Ω
Earth Bolt
W
V
U
(Option)
Y
X
Z
A
B
Besides Y-
Δ and PWS start, if there were any inquiry of Direct on line start
、
Soft start
、
Inverter start or Series
reactance reduced voltage start, please contact Hanbell for further.
5.2 Compressor protection devices
The table below shows the list of protection devices which are essential to protect the compressor and operate
safely. Follow the protection devices listed in the below table to ensure the compressor running under normal
condition.
Protection device
Set point
Remark
Motor wiring temperature protector (PTC sensor)
Cutout 120
℃
, Cut in 75
℃
Standard
Discharge temperature protector (PTC sensor )
Cutout 110
℃
, Cut in 60
℃
Standard
Phase reversal protector (INT69 HBY)
Optional
Phase failure protector (INT69 HBY)
Optional
Oil level switch
Optional
Oil filter pressure differential switch
Cutout 2.5Kg/cm
2
G
Optional
Oil flow switch
Optional
PT100Ω or PT1000Ω for liquid injection to motor chamber. Solenoid valve open 85
℃
, Solenoid valve close 75
℃
Optional
The motor thermister and discharge thermister are the temperature sensors with quick response while the
temperature approach to their set point; the thermisters must be connected in series to a controller (INT69HBY) in
terminal box as a guardian to protect the compressor. Alarm lamp for this protector is required to be embedded on
the control panel as indicator. Any intention to short the controller for startup the compressor is prohibited
especially in Hanbell. It is beyond Hanbell’s responsibility to keep the warrantee of compressor if there is any
above action found.
5.3 Power supply
Summary of Contents for RC2-F Series
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