Wednesday, August 31, 2016

Daily Maintenance Check Of Hydroelectric Powerhouse Electromechanical Equipments

Project:   ………………………………………………………………………………………..
Daily Maintenance check for Powerhouse Equipments
Date:
………………………………..
S.No.
Particulars
Check
Remarks
Power Transformer
1
Magnetic Oil Gauge of Main Tank and Conservator Tank

Oil to be filled in the transformer in case of low oil level and checked for oil leakage
2
Colour of Silica Gel in the Breather

If silica gel becomes pinkish, it should be replaced.
3
Leakage of Oil from any point of  the Transformer

If oil leakage is found, required steps need to be taken to plug the leakage
Fire Fighting
4
Check Fire Service Access

Ensure that fire service access are kept clear
Diesel Generator
5
Check and inspect lubrication oil Level


6
Check leakage of Cooling water from Radiator


7
Check vibration and Noise


8
Check leakage of Fuel Line


Hydro Generators
9
Abnormal Noise at Stator Core

check for core looseness especially at frame joints
10
Wound Stator

Check core , winding temperature Cooled air and cooling system
11
Guide and Thrust Bear

Check Bearing Temperature wchich can be due to Abnormal Vibrations, Balancing of rotor, Dirty Oil coolers, Cooling water flow , contaminated oil and bearing clearances
12
Level Gauge on oil level

Check Level Gauge of Oil . The oil level can be high due to water leakage and low due to leakage of oil from housing
13
Water leakage in Cooler Tubes of Air Coolers

Check Water Leakage in Cooler tubes and if leakage found plug the leaking tube
14
Air Pressure in Pressure Gauge

Check air pressure in pressure gauge and check for leakage and pipeline joints
15
Sparking and Mix of Dust/ Oil in Brushes of Collector

Check  sparking and Mix of C Dust/ oil  and clean if dust found
16
Commutation in Commutator Brush Gear of DC Exciter

Check Commutation in commutation Brush Gear
17
External examination of parts of generator which are accessible


18
External inspection of coolers, oil coolers, pipe lines, sealing &control etc. for leakages


19
Ensure Cleanliness of all external accessible parts of the generator &wipe with clean & dry cloth.


Turbine
20
Temperature of bearings of the Pump-motor set


21
Conditions of rubber seal of the pump and see that air is not being sucked from here into the system