Answer Posted / moti rgpv

1-:STAR -DELTA STARTOR
2-:COUPLING WITH INDUCTION MOTOR AND REMOVE THE MOTOR
AFTER GETING 80% TO 90% OF SYNCHRONOUS SPEED
3-:USING DAMPER BARS

What is line resistance of cable & how it can be measured ?

1593

---

detailed procedure how we calculate cost for pcc m10 and rcc m20 including centering and labour excluding steel/ iron

3176

---

i am trying to PSUs/govermeant jobs since last 2 years but still i m not success, plz help me.

1992

---

can I improve the furnace power factor (10 mva transformer) by adding a capacitor bank before the transformer.Does system power factor vary a lot with the furnace PF?

2097

---

- two pumps must work with them at the same time but if the first pump start the second pump  must delayed for some time to start  also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it

2801

---

Difference between megger test equipment and contact resistance meter test instruments?

1369

---

Why generation voltage in thermal power plant is between 11kv to 33kv?

1078

---

1.why we are using blocks in withoutgaplightning arrester 2.why we ar using bushing in withoutgap lightning arrestor

2089

---

draw vector diagram and +ve,zero sequence diagram of symmetrical three phase fault.

2088

---

how to calculate the surge level of surge suppressors related to the SF6 cicuit breakers?

2010

---

What is open loop and control loop systems?

1181

---

why ct's&pt'S out put called as burden,why compelsary short ckt the secondary of ct's while removing the burden?

2369

---

What is the tube exial fan?

2266

---

What is the requirement of grounding the neutral of single phase generators on load? If the neutral is not grounded, what will be the effect?

2157

---

What is the Designing & Selection Procedure for a DG/Transormer of rated capacity?

2232

---