What is meant by H.R.C fuse?
Answer Posted / dhedhipya
Large power fuses use High Rupture Capacity fuse of fusible elements made of silver, copper or tin to provide stable and predictable performance. High voltage expulsion fuses surround the fusible link with gas-evolving substances, such as boric acid. When the fuse blows, heat from the arc causes the boric acid to evolve large volumes of gases. The associated high pressure and cooling gases rapidly extinguish the resulting arc. The hot gases are then explosively expelled out of the end(s) of the fuse. Other special High Rupturing Capacity (HRC) fuses surround one or more parallel connected fusible links with an energy absorbing material, typically silicon dioxide sand. When the fusible link blows, the sand absorbs energy from the arc, rapidly extinguishing it, creating an artificial fulgurite in the process.
| Is This Answer Correct ? | 12 Yes | 2 No |
Post New Answer View All Answers
wat is the first thing dat is needed, 2 lay a cable in some area??
how to decide choke rating for drive?
HOW CAN YOU CALCULATE PRACTICAL EFFICIENCY OF A ASYNCHRONOUS INDUCTIONMOTOR OF 7.5KW,& MOTOR IS RUNNING WITH AVOLTAGE OF 410 VOLTS,& TAKING CURENT OF 13 AMPS
Why the field rheostat is adjusted such that the voltmeter reads 380V
why we dont prefer ac voltage controller instead dimmerstat [if both have same rating] for conducting experiments in laboratories?
what is the difference between ups & inverter
how to modify DOL control panel into Delta Y connection?
I AM GOING TO ATTEND APTRANSCO ON 26TH OCT 08.PLEASE SEND ME ANY MATERIAL OR TYPE OF QUESTIONS OR EXP QUESTIONS.
What are the symptoms of a bad PG card of a drive (inverter) esp. of Yaskawa Ac Drives (inverters) G7 ?
What the formula for calculating no.of earthings & size of earth strip for 100mX90m shop.
What is the loss of transformer of 220kv/11kv, 63/80 MVA and 18.05% impedance
What is time response of the control system?
Define thermal resistance in the context of power amplifier.
what are the possible reaons & remedies if resistance of NGR getting heat up
In aerodynamic turbines which element is NOT there a.stator b.compressor c. Fuel intake system d.fans