what is the working principle of three point starter of dc motor?

1 Answers   Ashok Leyland, Cap Gemini, Infosys, Just Dial,

---

what is CRGO Transformers?

6 Answers   MSETCL Maharashtra State Electricity Transmission Co Ltd, TATA,

---

Why is shaft current insulation required on large motors & when should it be checked i.e. before or after assembly?

2 Answers   Aramco,

---

How to operate a ac chilar plant?

0 Answers  

---

a)In a 3-phase 4-wire circuit, a circuit breaker is selected to protect the circuit whose highest fault level is 6.6 MVA. Determine the required minimum breaking capacity in kA. (Note: Covert 3-phase power in terms of kA to find answer.) b)Using the below, determine the required minimum making capacity in kA as a “peak value”. Rate breaking capacity (Icn) ka: Icn<= 1.5 Factor = 1.41 1.5

0 Answers  

---

what is the voltage present in the telephone?

10 Answers   Infosys,

---

why i can not use thimble on capacitor duty contactor

0 Answers  

---

what is the working of ups.

7 Answers  

---

sir, i'm preparing for hpcl exam officer trainee pls tell me how the exam ques paper pls pls

0 Answers  

---

How can get C license i am complete I.T.I electrician trade and 10 years experiance this field and i complete the dee from ksou by distance mode of this year.ksou means karnataka south open university but i want Tnelb license

2 Answers   C License,

---

I have a question, I visit 01 site and face a problem, there is 2.5 ton Air Con working, when air con compressor is running at that time rectifier voltages are increasing upto 290-295 v and rectifier is giving main high alarm (rectifier is APC single phase, before starting compressor rectifier voltages was 230v. when air con is going off rectifier voltages are decreasing smoothly at its actual voltages 230v. Load on Genset phases is this: Red-13.5 amp AC (Air Con load), Yellow-1.7 amp AC (BTS lights etc.) and Blew-4 amp AC (telecom system load), Genset phase to phase and neutral to phase voltages are also ok. These are 10 sites having same system and same rectifier APC brand at every site 02 genset are working but the problem is same at all these 10 sites. What will be the reason behind???

1 Answers  

---

what is meaning of bus riser

0 Answers   TeamLease,

---