Answer / abhi

i think the arc quenching in sf6 is better than vacuum. so for 33kv vacuum is usedc whereas for 132kv sf6 is used...

Answer / sathyamoorthy r

my idea 132kv vacum circuit breaker ,vacum create is most costly & difficult compare sf6 so usely sf6 and low kv use vacum . another difficult arc quencing medium is high for sf6

what are the settings is there for ABB REM543 Generator Protection Relay

1 Answers  

---

What is the difference between earthed & unearthed system?

2 Answers   HCL,

---

Define the three phase formula fuse.

0 Answers   ABC, Gayatri, UPCL,

---

Technical requirement of Copper earthing over GI earthing.

1 Answers  

---

how can we measure rotor current of a 3phase wound rotor induction motor connected to liquid resistance starter

1 Answers  

---

difference between ceiling fan

24 Answers   Altius Technologies, Raisoni, TCS, Uni Deritend,

---

We are preparing another project which involves Waste heat recovery from a 1 MW GE Engine. The Engine in particular gives out flue gas at 487Deg C with a flow rate of 5650 kg/hour and this can be cooled to 180 Deg C. This gives a thermal output of ~ 594 KW that is available for input to VAM via heat exchanger / boiler. Additionally 581 KW will be available from engine jacket water (temperature profile 80/ 80 Deg C and a flow rate of 50m3/hr) Our estimation is that 300 TR of cooling is possible with a suitable VAM machine(s). Please advise what is the most suitable arrangement with maximum TR and min Capital expenditure. plz reply me as early as possible

0 Answers  

---

Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example?

2 Answers  

---

what happens when the supply frequency to the tube light is reduced to 25Hz....?

5 Answers  

---

why in crona effect it give violet colour.

1 Answers  

---

define as synchronous generator

0 Answers   Enercon,

---

how solar power plant energy meter multiplication factor

0 Answers  

---