Answer / uditparashar

star delta starter : it is a set of electrical equipments used to control the current during the starting of induction motor as the starter operates the motor in star configuration in starting and then in delta configuration.

soft starter : it is a set of electronic components which control the nominal voltage of induction motor in order to control high current and torque during starting resulting in prevention of voltage dips and mechanical stress over the machinery .

what is the function of open delta System?

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how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec.

1 Answers   Bhel, Indorama, Power Grid,

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what is ups Paralleling? how is load sharing at that time ? what are the things we have to note that time?

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Why battery is always operate on dc supply?

1 Answers   Vikram Ispat Industries,

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Is it required to lay 2 runs of GI wires along with armoured cables from one power DB Machines of higher rating?

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why not feeling shock while touching rotor shaft of induction motor during running condition? during running condition emf induced in rotor.

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Why generating voltage is limited up to 22kV?

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To make a basic instrumentation amplifier, it takes A One op-amp with a certain feedback arrangement B Two op-amp and seven resistors C Three op-amps and seven capacitors D Three op-amps and seven resistors

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I have a transformer 3phase 11kv/410v and its name plate missing. now how can I judge its rated kva?

2 Answers   Coca Cola,

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What is the latest generation of circuit breakers called?

2 Answers   Focus, Oil India,

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Multimeter show phase to neutral volt 230 the per phase but phase to phase 415 not show 460 why.

1 Answers   Intas,

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wow to calculate the transformer rating(KVA)

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