Interested to Buy Any Domain ? << Click Here >> for more details...
I have 200 KVA Isolation Transformer for UPS input side. &
ups was having 48% load, suddenly got short what will be the
reason.
- 1 Answers
- 2992 Views
- Mukand, I also Faced
- E-Mail Answers
Answer Posted / m.b.parthasarathy
1. You've not mentioned clearly that the short occurred either in transformer or control board.
2. There my be many reasons.
3. In rush voltage may be higher.
4. The device(IGBT) used in the UPS, would be lower value. say 150A/400/600V
5. for ex, the above said UPS, 200kva/480v dc, due to improper maintenance of battery, weakness or prone to ageing the DC may be very low. Instead of 480V Dc it works only in 444V dc. Two or Three batteries may be getting weak.
6. Insulation of the transformer may be worn out
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
how to calculate transformer load?
WHAT IS MEANT BY DERATING OF THYRISTOR?
hi frnds what is meant by harmonics & what is meant by third hormonics,where its will occur ?thank u
Explain thin film resistors and wire-wound resistors
Why AC current leads voltage in capacitor and how?
what is POTT and PUTT explain?
when we gave dc supply to 220v dc motor its rpm is 1200. then we gave 180v. how many rpm of its motor. gave answer with calculation at my ID.... ravizak@ymail.com
Iin ESP why positive is grounded ? why not negative ?
Define the three phase formula fuse.
HOW TO CALCULATE THE VT SIZING?
How generating electric power export to grid from the generating station ?
What are the various types of rotor used in the alternators?
Igfet is a
IF 8255 CONTROL WORD IS 94H,Tell the chip port work mode ?
i need about 10 years of GATE solved papers in pdf format and even mock tests toooo
