Blue Bird M380 2003, Руководство пользователя

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M380 Owner’s Manual___________________________Interior and Exterior Systems Operation – 12kW Generator – 4-3
Rev. “F” 4-3-3
4-3.6.1.1 Very Low Voltage Output or No Voltage Build-Up:
Cause: Loose or broken lead wires.
Solution: Check lead wires and connections; tighten securely.
Cause: Defective voltage regulator
Solution: See Section 4-3.7 Bypass Regulator
Cause:
Exciter Stator opened or shorted.
Solution: Measure the resistance at 77°F ( See 4-3.5 Resistance Chart for OHM Ratings ).
Cause: Main Rotor opened or shorted.
Solution: Measure resistance between commutator rings ( See 4-3.5 Resistance Chart for OHM
Ratings ).
Cause: Main Stator grounded or shorted.
Solution: Run the generator for 5 minutes. (Stop immediately if there is smoke or a hot smell) . If
voltage does not build up and the generator is hot, there is a short circuit in the main stator windings.
Be sure main breaker is
OFF when checking voltage. Examine the main stator for burned insulation.
Do Not Remove from frame. Disconnect leads at control box to measure main stator resistance; V-1
and U-1 and V-2 and U-2 each should have equal resistance. If one voltage reading is lower than
another. The low voltage winding is shorted; replace main stator.
4-3.6.1.2 Full Voltage At No Load – Voltage Drops at Full Load:
Check Amp Draw at Genset
Cause: Defective voltage regulator.
Solution: See Section 4-3.7 Bypass Regulator .
Cause: Exciter Stator opened or shorted.
Solution: Measure resistance ratings ( See 4-3.5 Resistance Chart for OHM Ratings ).
Cause: Loose or broken lead wires.
Solution: Check lead wires and connections for broken wires and loose connections. Compare
connections with the wiring diagram supplied with generator.
Cause: Main stator grounded or shorted.
Solution: Replace main stator.
4-3.6.1.3 Low Voltage:
Cause: Low engine speed.
Solution: Check engine speed and generator ratings 1800 RPM/60 HZ or 1500 RPM/50 HZ.
Cause: Defective voltage regulator or needs adjusted.
Solution: See 4-3.7 Bypass Regulator .
Cause: Defective circuit breaker.
Solution: Use an Ohmmeter at R1 Scale, you should have continuity when closed and no continuity
when open, if reading differs, replace the circuit breaker.
4-3.6.1.4 Voltage Too High:
Cause: Fast engine speed.
Solution: Check generator ratings for proper rpm.
Cause: Defective voltage regulator or needs adjusted.
Solution: Replace.