Answer / balu

In star connected motor is used for low torque purpose.

And delta connected motor is used for high torque purpose.

Answer / geetartha

star connection is used for ht motors and delta connection
fot lt motors

Answer / 3nath

from above ans's which one is correct

what is the operating time for LBB and how does the LBB relay realise whether cb is opened or not?

0 Answers  

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why the Parameters : Base Voltage & Maximum Voltage can't be equal in value in a VFD (Variable Frequency Drive) ? How much the base voltage would be lower than the maximum voltage ? If 400 V is the 3 phase output of a VFD ... then what should be the base voltage ? thanks a lot

1 Answers   Yaskawa,

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How to Calculate The Neutral Earth flat design calculation for the Synchronised generator (Gen 1-650Kva, Gen 2-725Kva

0 Answers  

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any body know about lighting arrestor. how to determine the height of lighting rod from top of bulding and how many area it cover.

1 Answers  

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advantage,disadvantage,aplication of sensorless direct torque control of induction motor

0 Answers  

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How can w select the cable size for different rating load & also waht r factors affecting the during selection of cable?

11 Answers   AB Inc, Bosch, BRB Cable, Lucas TVS, Trisome Technical Services,

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5- What is the task (function) of the excitation and isolation transformers in power plant? 6- What is the task (function) of LCI (A), LCI (B) and LCI (COS) in power plant? : LCI (A) and LCI(B) are load commutating inverter for generator turbine starting. , LCI (COS) is load commutating inverter change over switch

0 Answers  

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HOW TO CONNECT THREE PHASE OVER LOAD RELAY FOR SINGLE PHASE

2 Answers   Quest,

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At what factor resistance r of a conductor depends?

0 Answers  

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We have ONLINE UPS 15KvA (3PHASE 440V I/P,3PHASE O/P,440V) I want to step down from 440 to 220 V What to do. Pl. suggest with specification.

1 Answers   ARDE,

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I want to know the 'Test voltage' for Tandelta testing of 3.3 / 6.6 / 11 KV Motors. Please explain

0 Answers  

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why there is a temperature rise at different metal to metal contact at cable lug??suppose cable is aluminium and the lug is copper,than why the temperature rise takes place??

2 Answers   JK Cement,

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