Answer / marques, joão

The heating time constant is the time required for a
electric motor to attain 63.2% of it's final temperature
for a fixed power input.

Answer / shyams

It is the time required for the electric motor to attain 63.2% of the maximum temperature reached by that electric motor

Answer / adeel

It is the time required for the homogeneous thermal model of an electric motor to attain 63.2% of the steady state temperature for a fixed input and fixed load torque.

IN 6.6KV 3 phase switch gear .i will give 6.6kv to R phase only to earth in during H.v testing (through H.v KIT).what happen remaining phases.how much voltage get remaining phases.why? explain.

1 Answers  

---

what is the difference between the electrical and electronic choke?

1 Answers  

---

how to check the 3ph capacitor is good or not.

14 Answers   MacLellan, Yash Technologies,

---

what parameters are should nessary for control technic dc drive(in rolling mills)?

0 Answers   TATA,

---

Dear All, I am new in construction company , my boss ask a question at time of interview , If we have 60MW generation and Single Power Transformer step-up we have. if CMR 50/60MVA , ONAN, ONAF respectively , is it sufficient or not ? for that much power to transfer,

0 Answers  

---

---

3phase lt motor winding how to checking with megger

1 Answers  

---

What is servo lock in CNC how they work and if any parameter for them in CNC machine

0 Answers  

---

What do you mean by reach and reach the point of the relay?

0 Answers  

---

WHY WE USE SIEMENS plC

3 Answers  

---

WHAT CAUSED THRESHOLD VOLTAGE TO EXIST?

0 Answers  

---

what use marshalling kishock in power transformer?

2 Answers  

---

Genreally distribution transformers are having Star/delta connections to provide phase and neutral to the consumers. Is the neutral of the star conncted secondary grounded in these transformers?

1 Answers  

---