Answer / siddikh

1.polarity must be same
2.phase sequence must be same
3.turns transformation ratio must be sane
4.frequency must be same
5.% Impedence must be same
6.Vector group should be identical

Answer / irfan

1.polarity must be same
2.phase sequence must be same
3.equal voltage

Answer / virendra

1.polarity must be same ( Must be full fill )
2.phase sequence must be same (Must be full fill )
3.turns transformation ratio must be sane ( Desired )
4.frequency must be same ( Must be full Fill )
5.% Impedence must be same ( Desired as to ensure equall
load sharing of both the transformer
6.Vector group should be identical ( Desired )

Answer / sanjayjssate

following
1- KVA rating should be same
2- Voltage should be same and
3- frequency should be same

Answer / manoj tyagi

1. same voltage ratio
2. the per unit leakage impedence of the xer r based on
their own kva rating must be equal
3. ratio of eqv. leakage reactance to eqv. resitance should
be same for all the xers
4.transformer must be connected properly

Answer / ashok

1)polarity will be same.
2)phase sequence must be same.
3) turns ratio will be same.
4)impedance will be same.

Answer / dg mobh

1.polarity must be same
2.phase sequence must be same
3.turns transformation ratio must be sane
4.frequency must be same
5.% Impedence must be same load sharing of both the
transformer
6.Vector group should be identical

Answer / vilas

1)Transformer primery voltage rating should be same.
2)phase sequence should be same .
3)polarity should be same.
4) Vector group should be same ,for example :dy11 etc.
These point to be considered while making parallel
operation of the tansformer.

Answer / maneswar

1.polarity must be same
2.phase sequence must be same
3.turns transformation ratio must be sane
4.frequency must be same

Answer / khalander mulla

to manage load at integrated steel plant to recover plant
load

how much capacity(rating) of generator required to operate a load of 100kv.

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For DG set,if the loading is increased,does flue gas temperature increases or not?

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can u tell the difference between star-star transformer and delta to delta transformer.

3 Answers   Videocon,

selection of conductor in different voltage?

1 Answers   TATA,

Briefly define and explain the following different types of Pulse Amplitude Modulation (PAM) with some examples. i) 2-PAM ii) 4-PAM iii) 8-PAM iv) 16-PAM v) Quadrature Amplitude Modulation (QAM)

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i alternator which of genarator used for excitor the what is reason?

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Is Softbitonline HT Transformer Design Software is AutoCAD compatible?

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who & how the notations given as RYB to 3phase power supply.

1 Answers  

why electron flow is opposite to current flow?

3 Answers  

how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING) I O (current operating)?

0 Answers  

10Hp, 3-phase, 415v, 50Hz induction motor. The above motor is to run on Star-Delta connection, so how do i make following hardware selection 1) MCB, 2) Contactor, 3) Wire Gage (Depending on P-P current or Line Current), 4) OLR, Please tell in detail how to do the above, so as to get the ans. of it even if the Hp rating changes.

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what the different between earthing and grounding?

4 Answers