Answer / varun

The main difference between normal motor and flameproof motor is the construction of the frame of the motor. Electrically the 2 motors are identical (depending on the manufacturer and money)

The flameproof motor's frame is more robust with larger spigots and end caps on the bearing housing. This more robust frame is needed if a gas explosion (not electrical explosion) occurs inside the frame of the motor, the explosion needs to be contained inside the frame and the flame need to be cooled down by the time it reaches the outside.The larger spigots on the frame is acting same as a cooler for the flames (this is called the flame path).

The sizes of the spigots are determined by the volumetric capacity of the frame, in other words the larger the frame size the larger the spigots. This effectively is needed because the more gas that will be able to gather in the frame of the motor, the bigger the explosion will be, the bigger the spigots needs to be to create a longer flame-path to cool the flame down.

At which time Synchronous generator act as a Synchronous Condenser?

1 Answers  

---

Why PT burnts?

2 Answers  

---

how manyunits consumed by 25 kvar capacitor bank

2 Answers   MRF, Suzuki,

---

for 4 MVA , 33K.V/6.6K.V transformer. secondary side the connected load is 3000H.P. What is the rating of capacitor bank to be insttaled.

0 Answers   SCCL,

---

explain different losses in a transformer.

0 Answers  

---

---

I would like to install the largest KW alternator to a 200 amp aluminum bus box in my home. Is it possible to install a 250 KW 400v 251amp synchronous alternator to my home?

2 Answers  

---

what is the ohmic value of transformers

1 Answers  

---

Why we use RYB phase sequence?

3 Answers  

---

what are the breakdown voltage rating of mini- curcuit'transfarmer!

0 Answers  

---

what is the difference between neutral

10 Answers  

---

How to calculate the load loss and no load losses of the power Transformer? i am having the following details : full load ct : in AMP HV :1676 ; LV:31.5 1800 KVA ;33KV/620 V for wind mill applications

2 Answers   ReasonSoft,

---

Types of 132KV and 222 KV protection.

1 Answers  

---