page_331

< previous page | page_331 | next page >

Page 331

TABLE 16-1 Troubleshooting Reactors, Capacitors, and Rectifiers

Condition

Possible Cause

Suggested Remedy

Reactors

Overheating of coils

Overloads
High ambient
Dirt or dust
Short circuit

Reduce load or replace.

| Relocate or provide forced ventilation. Clean. Locate and repair. |

Capacitors

Overheating of unit | Overload High ambient Short circuit | Reduce load or add units. Relocate. Replace unit.

Fuse blown

Short circuit
Overcurrent
Excessive temperature

Replace unit.

| Check voltage and protective devices. High ambient; relocate. |

| Short circuit; replace and improve ventilation. |

Bushing flashover

Lightning

| Dirt and atmospheric pollution |

| Clean or replace unit if necessary. |

| Clean or replace unit if necessary. |

Rectifiers

| High operating temperature |

| Defective water cooling; system plugged |

| Water regulator not functioning |

| Water pump not functioning Insufficient water |

| Remove rectifier from service. Check strainer, cooling coil, and jacket. Clean with chemicals as specified. Replace with clean, distilled water. |

| Remove, clean, and repair. Replace if necessary. |

| Check fuses, motor, and impeller. Repair or replace. |

| Check water gauges. Check for leaks. Add water in surge tank. |

Poor vacuum

Faulty vacuum regulator

| Failure of mercury pump (from overheating, too little mercury, or faulty water cooling) |

| Check motor, copper-oxide supply rectifier, circuit, connections, broken wire. Repair or replace. Repair or replace. |

(Table continued on next page)

< previous page | page_331 | next page >