how can we rotate a single phase motor (without cap.)in reverse direction?

2 Answers  

---

what is distribution board and panel board

3 Answers  

---

What is the comparision (advantages / disadvantages) of 110V, 60 Hz system to 230 V, 50 Hz system.

2 Answers  

---

how can we change the phase angle b/w two phase?

2 Answers  

---

How many earthings are required for commissioning the Transformer?

14 Answers   Dalmia Group, HSL,

---

---

can we use metering current transformer as protection current transformer if not why? & if yes why?

5 Answers   Wartsila,

---

what is the difference b/w winding insulation class and winding temperature class?

6 Answers   Bhel, NDPL, NTPC,

---

Operation of isolators.

0 Answers   KSEB, L&T, Siemens,

---

What are the protections required in the main lt panel which is connected to the transformer.

1 Answers   Ispat,

---

how to select short circuit current while selecting a MCCB? how to calculate current for a given KVA and KW load?

2 Answers   GE, PnU Engineering,

---

If the positive terminal of batteries in 125 v dc system is connected to earth what will happen ?

4 Answers  

---

what is PI value and its significance for insulation testing?

3 Answers  

---