Bell & Gossett IM179 R02 Single Phase, Single Seal Grinder Pump - Manual (Page 8)

8
TYPICAL PLUMBING AND INSTALLATION
INSULATION RESISTANCE READINGS
Normal Ohm and Megohm Values between all leads and ground
condition of Motor and leads ohm Value Megohm Value
A new motor (without drop cable). 20,000,000 (or more) 20 (or more)
A used motor which can be reinstalled in well. 10,000,000 (or more) 10 (or more)
Motor in well. Readings are for drop cable plus motor.
New motor. 2,000,000 (or more) 2 (or more)
Motor in good condition. 500,000 - 2,000,000 .5 - 2
Insulation damage, locate and repair. Less than 500,000 Less than .5
Insulation resistance varies very little with rating. Motors of all HP, voltage and phase ratings have similar values
of insulation resistance.
Insulation resistance values above are based on readings taken with a megohmmeter with a 500V DC output.
Readings may vary using a lower voltage ohmmeter, consult factory if readings are in question.
SERVICE
POLE
CONTROL
PANEL
INLET HUB
FLOAT SWITCH
HIGH LEVEL ALARM
(OPTIONAL)
FLOAT SWITCH
ALARM LIGHT
HINGED ACCESS DOOR
VENT
VALVE
OPERATING
ROD
DISCHARGE
CHECK VALVE
LOWER
PUMP GUIDE
INFLUENT
GUIDE
RAIL
SIMPLEX
INFLUENT
ALARM LIGHT
HINGED ACCESS DOOR
VENT
VALVE
OPERATING
ROD
CONTROL
PANEL
SERVICE
POLE
CHECK VALVE
INLET HUB
FLOAT SWITCH
HIGH LEVEL ALARM
(OPTIONAL)
FLOAT SWITCH
GUIDE
RAIL
DUPLEX
LOWER
PUMP GUIDE
DISCHARGE