For similar characteristics, governors with adjustable speed droop can be adjusted in order to match fixed speed droop governors. When the shutdown faults are overridden, the faults are treated as alarm faults. In order to shut down the engine, the emergency stop push button shuts off the fuel. Be sure that one of the neutral ground circuits is closed. If a fuse becomes open, contact a Caterpillar dealer.
Ensure that all of the warning signs are legible. The voltage regulator senses the generator output voltage. The generator identification and information plate includes the following information: serial number, model number, and the rating of the generator set. The elimination of brushes in the field circuit reduces maintenance and reliability. If a constant frequency from no load to full load is required, one governor can be adjusted for isochronous operation.
Before the engine is operated, tighten all loose electrical wires and repair all frayed electrical wires. The normal functions of the keys are described in the following paragraphs. If the Engine Control Switch is left in the Automatic position, the engine will stop automatically when the remote starting contacts open and the programmed cool down cycle is complete. The third condition of the Initial Startup Requirements has been met. The 172418290 and 52418290 electric governor systems provide precision engine speed control.
Total real power kW The display consists of the upper display and the lower display. Access the parameter value by pressing function key 6. After the generator's temperature has stabilized for one hour, adjust each generator's voltage droop control. Description Caterpillar Operation Manual Sr4B Generator pdf download. Refer to step 2 in order to restart the engine. Carefully matched voltage regulator adjustments will reduce the circulating currents. Standby Electric Sets Most standby units are automatic.
Induction motors usually have a power factor that is no larger than 0. This will allow the engine to run for the preset cool down time before shutdown. Therefore, the service life of an electric machine will largely depend on the serviceability of the insulation systems. The correct phase sequence is indicated when the brilliance of the two lamps changes together. Illustrations guide the operator through the correct procedures of checking, starting, operating and stopping the engine driven generator.
The grounding of both of the Wye neutral connections may result in circulating currents through the neutral connections. Always check with your utility as to the applicable circumstances. Proper care is your responsibility. This will share the reactive load and this will limit the circulating currents. For the most consistent results, repeat Step 2 and Step 3.
However, only one governor of the group can be adjusted for isochronous operation. If the engine is running, the engine is shut down and the engine is not allowed to start. Stay clear of all rotating parts and of all moving parts. Broken down on the trail or site and have a smart phone? If a fault occurs, the engine will be automatically shut down. Voltages in phase Note: If a generator is paralleled with other generators, each generator's voltage droop must be equal in order to satisfactorily divide the reactive load. Keep both the switches in these positions until the engine starts.
To help prevent an accident that is caused by parts in rotation, work around the parts carefully. All ball bearings should be cleaned. The wires and cables must be connected to a fuse or to a circuit breaker, as required. First, the power that is supplied to the generator and the power that is supplied to the load is a function of the engine. When a relay is not activated, the corresponding indicator K1, K2, etc is not shown.
This allows the engine to work at the rated capacity. When the key is pressed again, the power meter functions will continue to scroll. Display Low Coolant Level - The engine coolant level drops below the coolant loss sensor's probe. Oilfield generators are not provided with a voltage regulator. This book is a critical tool for operating and maintaining your machine. Custom Alarm Module or Synchronizing Lights Module 10 - The custom alarm module provides a visual warning and the custom alarm module provides an audible warning.