Answer Posted / kiran sule

In any relay Set earth fault to minimum That means If Earth
fault range is 20 to 80 % of secondary current then set it
to 20% . In case of over current calculate rated current
and add 5%for relay & ct error and 5% to over load that
means set it to 110% to full load capacity.
If for 200/1 CT If full load current is 160 that mens 80%
to secondary current of Ct+10% relay CT error and Over load
that means relay ia seted to 180A interms of secondary at
0.9 a that means 90%

Whether it is possible to measure energy at the input of rectifier transformer (12 pulse with very high odd harmonics)

1840

---

i will applied in 1U-1W on 440 volt primary delta side. what is the result of magtic balance test

1737

---

Define thermal resistance in the context of power amplifier.

1073

---

How you give clearance to a spare feeder.

1637

---

Which type of DG need Netral Earthing?

5207

---

Classify drilling machines.

1095

---

How many types of losses occur in a transformer?

1094

---

Does the direction of rotation of d.c. Shunt motor would get reversed if the armature current and field current both are reversed?

1093

---

Explain what is use of lockout relay in ht voltage?

1027

---

(In MEP services) HVAC in AC Plant room what else can we provide if the chiller is not considered?

1997

---

How out of step protection relay works?

2343

---

what are different types of electrical windings? i know the distributed winding ,concentrated winding etc but i want some detailed information, in what condition we will use distributed,concentrated windings what are the difference between them which is best, how induced emf changes by using different types of windings 20 hours ago - 1 week left to answer

1957

---

What is the lockout relay

1478

---

Control wiring of a dol starter for forward and backward

1508

---

In EB metering we face problem kva jump even in no load condition.can any one help to control this

1774

---