Answer / jiten

PRV (Pressure relief valve) is one of the protection
component in the transformer. The main purpose of the PRV
is to protect the expansion of oil during any inside fault
of transformer.

During fault this PRV operate and trip the transformer. So
it can be protected from further damage.

Answer / ladla

pressure relief or pressure safety valve used in any
chemical/Mechanical equipment or Electrical transformer or
generators to maintain inside pressure for the safety
purpose. Its works automatically when inside pressure is
out of limits. Finally safe the equipment

Answer / k.p.sharma

JITEN IS RIGHT AND NORMALLY THE PRESSURE INSIDE THE
TRANSFORMER TANK REACHES TO 0.5KG/CM2 PRV RELASE THE
PRESSURE (SPRING TYPE ACTION ) AND AS THE PRESSURE COMES TO
0.3KG/CM2 IT GOT RESET.

Answer / swapnil pawar

Pressure relief valve is used were air pressure is
maintained .It is pressure relief valve which maintains
pressure.

For e.g.

If in air cylinder 10kg air pressure is maintained, then if
by chance air pressure increases to 11kg the Pressure
relief valve get activates and 1kg pressure release.
This is used for safety reason.

what is self capacitance of inductor

0 Answers   Bhel,

---

Brushed alternator is also called dc generator ? its true or false ?explain it ?

5 Answers  

---

why any centrifugal blower draw more current in starting. consider id fan and fd fan?

0 Answers  

---

If one tertiary phase i.e. R,Y or B is earthed of a loaded type tertiary delta connected (Without load)of a power auto transformer, what is its advantage/disadvantage?

0 Answers   Amara Raja,

---

i have 28/32 MVA power transformer with 11/6.6 KC voltage rating and 12%impedance.it have star connection at both side.but it have another thied winding tertiary winding.what is used of this winding. pl tell me

7 Answers  

---

Alternator couple to diesel engine why, Alternator couple to ac service motor with gear drive for 1500 rpm possible (yes or no) aim to low input power supply give to motor then high output power taken for alternator Please answer this question

1 Answers   Turbo,

---

HOW TO CALCULATE ELECTRICAL, MECHANICAL,& OVERALL EFICIENCY OF GAS ENGINE POWER PLANT

0 Answers  

---

according to faraday's law whether the induced emf is average or rms value?

2 Answers   Power Grid,

---

how many types method in earth testing?

3 Answers   ONGC,

---

what is a universal motor? how it works?

4 Answers  

---

What happened ,If 3 phase clearance not maintained in 33KV Line,11KV LIne etc?

0 Answers  

---

is it possible to minimize the copper loss?

2 Answers   Coal India, TATA,

---