why do we measure VIBRATION in -24vdc and why we adjust gap voltage -9vdc to 10-vdc? i am trying to get this information since 5 years, yet i haven't get reliable answer, i hope i can get from you.

1818

how we can calculate 2 phase welding transformer rating or total power?

1819

We are designer please help me calculate the size of 11kv cables from step up transformer to M.V panel, total load is 5 mega watt distance 900 feet (used aluminum type cables) please provided formula for calculate the cable with example.

1617

how does an encoder work???

2469

What is inductance?

1125

A 2083kva AVR was tested, phase to ground shows continuity, what is the implications

986

If Polarization index of motor 8.75 at 500volts of medium voltage 4.16 KV motor what this mean winding good or bad pl answer if any reffrence book give me the link

2084

Usually in the L & T make MCC feeders' power circuit,we have BMR after the MAIN CONTACTOR.,can we interchange their position, keeping the control logic same???

2070

earth also having a gravitational force (magnetic field of north and south)but it attracts any object compare to this theartifical magnetic cant perform same as earth why?

1928

what is the circutor?why we use it ?

2279

What is UPS and How do you maintain the UPS Maintenance? Brief Description on UPS maintenance.

2554

What are the differences between single phase and three phase?

1998

what is difference between window type and wound type transformers?where we will use window type and wound type transformers?

2140

What are the specifications for conducting earth leakage test as per IEC standard?

2009

a 230v transformer with step down ratio 19:1.it has 2000turns on primary and rated 25va calculate max primary current no of secondary turns volts/turn

1504