Generac Power Systems 7 kW NG User Manual

AC GENERATORS
PART 2
Page 45
Section 2.3
Troubleshooting Flow Charts
TEST 4 – PERFORM
FIXED EXCITATION /
ROTOR AMP DRAW
TEST 7 –
TEST STATOR
TEST 10 –
TEST ROTOR
ASSEMBLY
BAD
GOOD
GOOD
GOOD
GOOD
BAD
BAD
RE-TEST
TEST 4
REPLACE
ROTOR
ONLY
GOOD
REPLACE
STATOR
ONLY
REPLACE
ROTOR
AND
STATOR
BAD
REPLACE
ROTOR
AND
STATOR
Problem 1 – Generator Shuts Down for Under Voltage (Continued)
F
E
H
PERFORM STATOR
INSULATION
RESISTANCE TEST
SECTION 1.5
PERFORM ROTOR
INSULATION
RESISTANCE TEST
SECTION 1.5
TEST 7
–
TEST STATOR
TEST 10 –
TEST ROTOR
ASSEMBLY
Problem 2 – Generator Produces High Voltage
TEST 2 - CHECK
AC OUTPUT
VOLTAGE
HIGH HIGH
FREQUENCY AND
VOLTAGE O.K.
STOP
TESTS
VOLTAGE OUTPUT
AT BREAKER IS
BETWEEN
220-270 VAC
VOLTAGE OUTPUT AT
BREAKER IS BELOW
220 OR ABOVE 270
VOLTS AC
TEST 3 -
CALIBRATE
VOLTAGE
REFER TO
PROBLEM 1
FREQUENCY O.K.,
BUT VOLTAGE
INCORRECT
TEST 12 - CHECK
STEPPER MOTOR
CONTROL
TEST 11 - CHECK
AC OUTPUT
FREQUENCY

Generac Power Systems 7 kW NG Specifications

General

Brand	Generac Power Systems
Model	7 kW NG
Category	Portable Generator
Language	English