Answer Posted / v.raguvaran

THE MOTOR AMP IS 130AMP.THE CABLE(USE COPPER ) SIZE SHOULD BE 45sq.mm (delta connection),35sq.mm(star delta)
OLR RATING IS (125-135) BUT STANDARD SIZE IS (130-175)ABB
CONTACTOR RATING IS 200A(DELTA),100(MAIN)-100(DELTA)-50(STAR)
MCCB RATING IS 250A

what is the use of surge suppresser in 33 KV incoming panel. where it must be installed,inseries with incoming cable surge suppresser must be at incoming of the breaker are outgoing of the breaker

5414

---

Thermal withstand capability under full short circuit conditions, in terms of number of times of occurrence of short circuit and corresponding anticipated percentage reduction in transformer life.

2443

---

What is Anemometer used to measure?

1127

---

what is the id1 & id2 setting in differential protection relay of CSPC?

2793

---

What is a advantage of Self Reset Lockout ? On Fault breaker get trip & fault no longer exist then self reset lockout how inform us?

1875

---

1)Explain why the cradle guard is used on railway crossing in overhead line construction?

5061

---

what is breathing?

1817

---

What are the application of filter?

1067

---

is it necessary to earth the rmu before cutting off the transformer winding?if yes why?

1936

---

in power generator normaly voltagr betwween esth to neutral is 0 but my work place generator show the volatge is 60v any body know why? thanks

1905

---

the site measured knee point voltage of protection class CTs should be greater than rated knee point voltage? what about meetering class CTs. Should it be below the rated knee point voltage?

2282

---

for compensate 315mh inductance ,how many capaciance required?

2057

---

PLEASE TELL ME ABOUT QUESTION PAPER OF UPCL ENTERENCE EXAM.

7975

---

What do you understand by oldham's coupling ?

1068

---

What is critical disruptive voltage?

1321

---