In my company plc based winders are operated. one day there was a data transmission failure alarm shown on pc. as per sir instruction we have reset master plc but winders were not triped and alarm gone. so what master plc do?

1406

how to select overload-relay for perticular motor 1.for D.O.L. starter 2. for Star-delta starter ????

2380

How is work 5/2 sov?

1382

What is difference between Over Current & Earth Fault protection?

1935

Why we cant store an ac power. If we coo store in which device we can?

1640

How does length and initial angle affect the period in a simple pendulum?

722

about basic questions ofpiping engg

1420

Maintenance of transformer???

1802

what is the diffrence between pressure safety valve & pressure relief valve....pls

1724

What is setup time?

531

safety of centeral chiller plant

1493

Explain me what is casing?

1

Difference between software process model and software process.?

1493

1.why we are using blocks in withoutgaplightning arrester 2.why we ar using bushing in withoutgap lightning arrestor

1549

Why does curving the pole faces in a dc machine contributes to a smoother dc output voltage from it?

760