Science&Technology

 INSULATION RESISTANCE MEASUREMENT TEST To ensure the insulation healthiness of the primary and secondary circuits the measuring insulation ...

Star-delta starter Star-delta starter is a very common type of starter.Star-delta starter are use for reducing the starting high current a...

Transformer  গরম হওয়ার  কারণ  গুলো হল ১. Over load  হওয়ার জন্য হতে পারে। ২. Insulation weak  হওয়ার জন্য হতে পারে। ৩.কোথাও Earthing পেয়ে গ...

When an alternating potential difference is applied across two conductors whose spacing is large as compared to their diameters,exceeds a ce...

Sun-Earth Astronomy: The earth revolves around the sun in a plane called ecliptic plane. The earth’s axis is inclined at 23.45  (constant...

OP-AMP Input & Output Terminals of an OP-AMP An op-amp has two input terminals and one output terminal. The op-amp also ha...

Over Current Relay( OP-AMP) Input & Output Terminals of an OP-AMP An op-amp has two input terminals and one output terminal....

Polarity Test of CT: A DC source is connected with the positive terminal to P1 and the negative terminal to P2. An analog ammeter is c...

Rooppur Nuclear Power Plant  The first phase of the second phase of the Asia-Pacific region and the only two thousand MW MW power pl...

CTs divided by Two type: Ø   Protective CTs connected to lines : they should faithfully produce the secondary current in proportion to ...

 Breaking Capacity:      During fault condition, the current passing through the CB is extremely high. CB must be capable to handle suc...