Answer / ganesan.n

Softstarter is a Starter setup made by thyristors.
By varying the firing angle we can reduce the starting
current as we do in traditional starters.

Answer / george

soft stater is a kind of motor starter to reduce starting current of a motor. it softly start the motor until the motor operate at his normal RPM.

Answer / prakash gokhale

Because in tradition resistance type starter at the time of
starting the motor jerks produced, while in soft starter
motor startes sfotly without producing jerks. Also the
voltage is lower then the traditional starters.

Answer / jeevan

soft starter is used to reduce the starting current by controlling the applied voltage with the use of thyristors connected in antiparallel. but speed cannot be controlled as of VFD.
once the full voltage applied at certain acceleration period, bypass contactor would be energized to avoid thyristor drop during operation.

Whether amorphous core transformer is available in India?.If available then up to what rating of voltage and KVA?.

0 Answers   DAE, Tata Chemicals,

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What range of speed can you get with the field control method of speed control of d.c. Shunt motor?

0 Answers  

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PLZ EXPLAIN THE INTERLOCKING AND CONTROLLING OF CONTACTORS????HOW CAN I DO THAT?

2 Answers   Siemens, UPL,

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If a three phased motor or not working phased change on poles so how to find which one red yallow & blue

1 Answers  

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How to calculate D.C load current?

3 Answers  

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Discuss about gear cutting machines.

0 Answers   Ashok Leyland,

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What is different type of Electrical curve and how it protects the equipment's while up-normal situation?

0 Answers  

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Why ACB is used in LT why not in HT and why VCB is used in HT why not in LT

1 Answers   GE,

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I have connected 04nos. earthings to a transformer through 04nos. earthing pits seperately. 02nos. earthings are connected to T/F body, and 02nos. earthings are connected to T/F neutral.T/F capacity is 2000KVA, 11KV/415V. But after completing of 02 years successful operation ,we are facing following problems- 1. CT/PT occured blast one time 2. HT cable box occured blast two times 3. One body earthing strip and one neutral earthing strip of transformer are overlapping at some places. Whenever these two strips are pressed at overlapped points, they made spark. What is the reason of spark? Please explain the reason & rectification of above problems

5 Answers  

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What are the possible causes if load is not same on all the three phases

4 Answers  

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How much dc volt applied in cathodic protection system?

0 Answers  

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Describe Non I.S. Earth System and why is it used?

0 Answers   KPJV,

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