Answer / j.karthik(cce)

Generator Protections are:

1. over current protection
2. Earth Fault protection
3. under voltage protection
4. pole slipping protection
5. under frequency protection
6. Impedence protection
7. df/dt protection

Transformer Protections are:

1. Differential protection
2. winding temperature protection
3. Oil temperature protection
4. overcurrent protection
5. Earth fault protection
6. undercurrent protection

Note:

The protection relays are increases deponds on the ratings
of the Transformer and Generator...

Answer / parmod kumar

Generators Protection's are

1. over current protection
2. Earth Fault protection
3. under voltage protection
4. under frequency protection
5. Reverse Current Protection
6. High Water Temperature Protection
7. Low Coolent Water Level Protection
8. Over Speed Protection
9. Low Lub Oil Pressure Protection

Transformer Protections are

1. Winding Temprature Protection
2. Oil Temprature Protection
3. Bucholz relay protections
4. overcurrent protection
5. Earth fault protection
6. undercurrent protection

Answer / n k singh

Generator protection means protecting the generator in case
any abnormality occurs on generator and transformer
protection means protection of transformer in case any
abnormality occurs on transformer.
General generator protections are:
1.U/F Protection
2.U/V Protection
3.Excitation failure protection
4.Protection against prime mover failure.
General Transformer protections are:
1.Overload protection
2.Ground /Earth fault protection
3.Restricted earth fault protrection
4.Winding temperature high protection
5.Winding protection.

what is the principle of synchronous motors?

3 Answers   The Grand,

---

Radio Carbon dating is used in a) find diseases b) find the age of relics c) find the carbon content in the atmosphere d) none of these

2 Answers  

---

what is our body resistance value?

11 Answers   Bhel,

---

What is the funstion of buscoplure in LT panel? which propouse using the buscoplre

2 Answers  

---

What is the maximum and minimum rating of UPS?

0 Answers   Indiabulls,

---

What is the use of starter in tube light fitting.how it works.

3 Answers   JSW,

---

what is a speed of rotor when we give supply to stator of 50hz and as well as rotor of 60hz of an induction motor?????

0 Answers  

---

how to calculate the power factor when instantaneous voltage and current has harmonics in it ?

0 Answers   Sandhar,

---

which technique servo motor tested o.k or faulty ?

1 Answers   ABB,

---

how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

0 Answers   SISL,

---

sir i used 3 hp of motor for spraying pump, other home light and other home items which size of allminium pvc wire ix used

0 Answers  

---

Can a transformer designed for a particular voltage and frequency rating be used for different set of mentioned ratings? Assume that the winding does not get burnt because of overheating at higher voltage. If yes, then under which constraint it is possible?

1 Answers  

---