Insulation Resistance Readings - Xylem RED JACKET Serie Manual Del Usuario

INSULATION RESISTANCE READINGS

Normal Ohm and Megohm Values between all leads and ground
Condition of Motor and Leads
A new motor (without drop cable).
A used motor which can be reinstalled in well.
Motor in well. Readings are for drop cable plus motor.
New motor.
Motor in good condition.
Insulation damage, locate and repair.
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.
TYPICAL PLUMBING AND INSTALLATION
INFLUENT
SERVICE ALARM LIGHT
POLE
CONTROL
PANEL
INLET HUB
MERCURY SWITCH
HIGH LEVEL ALARM
(OPTIONAL)
MERCURY SWITCH
SIMPLEX
8
HINGED ACCESS DOOR
VENT
GUIDE
RAIL
VALVE
OPERATING
ROD
DISCHARGE
CHECK VALVE
LOWER
PUMP GUIDE
Ohm Value
20,000,000 (or more)
10,000,000 (or more)
2,000,000 (or more)
500,000 - 2,000,000
Less than 500,000
INFLUENT
SERVICE
POLE
CONTROL
PANEL
INLET HUB
MERCURY SWITCH HIGH
LEVEL ALARM (OPTIONAL)
MERCURY SWITCH
Megohm Value
20 (or more)
10 (or more)
2 (or more)
.5 - 2
Less than .5
ALARM LIGHT
HINGED ACCESS DOOR
VENT
GUIDE
VALVE
RAIL
OPERATING
ROD
DISCHARGE
CHECK VALVE
LOWER PUMP
GUIDE
DUPLEX