Answer / sachin verma

There is no such a transformer like Extended Delta Auto
Transformer. Auto Transformer is only available with star
connection.

Answer / raj kushwah

that type transfore no maked so that time only auto
transformer. with star connecton.

The inventer is a battery, but if lost current at home u will turn on the fan but the is AC and inventer battery is dc . Then how the fan was rotating. What device Or machine in fan converst the Dc power to Ac power

0 Answers  

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In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes

0 Answers  

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What conditions are required for a transformer to operate at low frequencies ?

1 Answers  

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Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . please reply..............

9 Answers   NTPC,

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how moving coil indicator works?

1 Answers  

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How reverse power relay sense the power is reverse in the system.

2 Answers  

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what is different between earthing and grounding for a electrical eqipment ?

2 Answers   BARC, Omega Maritime,

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HOW EFFICIENTLY LOAD IS SHARED BETWEEN ALTERNATORS

1 Answers  

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transformers? power factor? machiences?

3 Answers  

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HOW TO CALCULATE UPS BATTERY BACKUP TIME

3 Answers   HSBC, VRVS,

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wat s the difference between diode and capacitor

20 Answers   TCS,

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What is the minimum value of hfe for the oscillations in transistorized rc phase shift oscillator?

0 Answers  

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