what are the colour's and their indications in bucholz
relay?

Answer Posted / ram

If you are asking about the silica gel.

If its blue means its in good condition
If its Pink means it has observe moisture from air and need
to take out dry it and refill it in breather or you can
change it.

Is This Answer Correct ?    20 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the Basic Difference bitween Long Shunt Connection and Short Shunt Connection in DC Generator?

1814


what is negative d.c. voltage, why this voltage is used in base transciever station.

1741


we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.

1492


when ac current flows thru d coil of a contactr,it energizes,magnetic field attracts d contact of the coil...nw wont dt ac current in d contct induce current back on to d coil thru mutual inductance leading to high currnt in d coil

1268


why the active power flow of some line is increased when the active power of out is cut ?

1648






define hysteresis loss, eddy current loss and windage loss

1535


how to calculate slip ring induction motor stator and rotor currents??

1739


Explain the operation of grid connected central solar inverter ?

1035


How to calculate Air conditioning capacity for a telecom BTS shelter?

3046


What happen if we apply square wave or traiangular waveform voltage to the transformer primary winding instead of sinusoidal wave?

1642


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

360


working of diesel generator ?

1362


What are the different types of LT Cables?

628


Why you are switching off arc protection mcb when you are taking shutdown for lv board.

1223


1)we have 1000 cfm Blower,Dia-1Mtr,Velocity of air 94 m/s 2)We have Natural Air velocity 94m/s 3If i Put Wind Mill in natural air ,speed is 94m/s Then it will generate Assume 100kw 4)If i put same wind mill across the Blower,air speed is same 94m/s now the Question is Will it generate 100 kw?

1521