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in Contactor opearation Why there is a difference in the values of the operate and release voltage in case AC supply
2115hi frienda We have 750kva cater pillet dg set we are fasing one diffrent proublam in dg we are start dg set after one mint applying load around 450a load but dg was run 3 Or 4 mints after 3 mints dg was shuding down automatic how to face this proublam pls tel any budy
1 3340what is the function of anti pumping relays? what is KVAR? How it is generated in alternator? What is 3rd Harmonics? What is IDMT relay?
2303What will be the change in its efficiency and other parameters of a ONAN transformer if it changed to ONAF transformer ?
3 5305What is a Single Phase and Three phase Power? How it will be converted or transformed into another form?
3 8566Post New Electrical Engineering Questions
iam preparing for rrb section engineer post in electrical branch.suggest the right textbook for my reference.fromwhere i will get the previous q.papers?
An automatic water heater is an example of which type of control system?
harmonics filter
what is transient enclosure vltage , very fast transients, very fast transient over voltages
HOW TO CALCULATE THE REGULATION OF 100 AND 25 KVA TRANSFORMER
which stabilizer is better ? AVR, Servo Stabilizer, Static stabilizer etc & why explain it
Draw a SLD for main panel for school having connected load of 1200kw and emergency generator 200kw.also show the increase of additional load of chiller 225kw in the lv panel indicating meter postion size of transformer ,cables and capacitor bank.
What is q factor?
HOW DO YOU CAN CHECK A 15KV DIODE, WHETHER IT IS OK OR NOT?
Why the field rheostat is adjusted such that the voltmeter reads 380V
If we have use two power cable for incomer, that time how many use cbct for earth leakage protection? 1 or 2 if 1 way? If 2 way?
state the working principle of incondenscent tube?
DRAW ACIRCUIT DIAGRAM OF 100 KVA 415V/55-0-55V DELTA TO STAR TRANSFORMER
A 2083kva AVR was tested, phase to ground shows continuity, what is the implications
when we design electrical schemes of 11/.415kv distribution..wen and were should we show the relays??what is the function of it?for example..we place EFR Relay CT between transformer neutral link and transformer earth.Like this what are the other type of relays we should use?why?where?Explain please..Thank you
