Answer / amit kumar sharma

Daily routine test for Diesel Generator

Before Starting
1. Check Fuel Level
2. Check Oil level
3. Cooling Water (For water cooled Generator)
4. Battery Volts and terminals
5. Air Filter

After Starting before loads on
1. Oil Pressure gauge
2. Battery charging ampere
3. Water / Oil Temperature
4. Output supply
5. Output frequency

After Loads on
1. Frequency (check if within acceptable limits)
2. Three phase supply volts
3. Load Sharing on each phase
4. Temperature of Water / Oil
5. Exhaust gas color (Should be clear. Not smoky or black)
IF exhaust gas is black, it is overloaded
If its smoky, oil is leak in manifold, or Diesel quality is
poor

Answer / rajendran.m

Battery
Cleaning of terminal and petrolium gelly applied,and to
check a specific gravity of battery.
D.G
To check a battery,water level of radiater, oil level,
diesel level and cleaning of gensets.Will be started a
trail run daily.

why the check zone and main zone are used for Busbar Protn. scheem?

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while running ,synchronous generator is being turned off.what will happen to the current flow??

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what is the principle of dc generators?

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if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer

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importance of reactive power management

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what is busbar and its function/

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what is over frequency protection

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IF I USED VVVF DRIVE IN FAN APPLICATION MOTOR IN 6.6 KV ( 700 KW) MOTOR & DURING NORMAL RUN OPERATION TIME IF RPM SUDDENLY REDUCE IN MOTOR BY DRIVE(E. MOTOR RPM REDUCE SUDENLY 687 TO 550 RPM) WAHT WILL BE HAPPEND IN DRIVE

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what is the difference between multimeter and megger?

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ynchronous M/C with under excitation with reactive power absorption , acts as a) synch. Motor b) synch gen c) synchr capacit

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