Download ANSI-IEEE 1010-1987 Guide for Control of Hydroelectric Power PDF

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Additional resources for ANSI-IEEE 1010-1987 Guide for Control of Hydroelectric Power Plants

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Oil pump control switch Auto C GV Grease system control switch Auto C TB Cooling water control switch Auto C OT Phase reversing control switch Gen/Cond C SB; Reversible units only. Thrust bearing oil pump control switch Auto C GN Turbine bearing oil pump control switch Auto C TB Unit breaker Tripped C OT Exciter supply breaker Tripped C EX Field breaker Tripped C EX If used. Turbine vent valve Closed C TB Runner band drain valve Closed C TB Air Maint. seal, below headcover Closed C TB If used. K.

Its connection would be similar to the motor operated switch shown in Fig 3L-1. Phase reversal can be accomplished either on the low side or the high side of the unit step-up transformer. Several arrangements are illustrated in Fig 3L-3. The method chosen will depend on the usual constraints of cost, space, size of unit, maintainability, etc. When specifying phase reversing equipment, major consideration should be given to the severe duty usually imposed on it by the change of modes at most pumped storage projects.

Voltage reg Pre-start C EX Auto voltage reg Pre-start C EX Thrust bearing oil press Normal C GN Cooling water flow Normal C OT Penstock shut-off valve 100% open C OT If used. 3 Unit Run After the auxiliaries start sequence is completed, the unit run sequence begins. At this time, the following events occur: · · · · The gates are unlocked Both the complete and the partial (if used) governor shutdown solenoids are energized, allowing the gates to start opening Energizing the partial shutdown solenoid may be delayed until after breaker closure The exciter voltage regulators are enabled Copyright © 1988 IEEE All Rights Reserved 53 IEEE Std 1010-1987 IEEE GUIDE FOR CONTROL OF As the gates open, the unit accelerates until approximately 95% speed is attained.

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