What is meant by H.R.C fuse?
Answer Posted / tai s l
HRC stand for high rupturing capacity, use for
1)very hight overcurrent protection normally on top of
motor overload protection devices, act as standby triping,
remmember this : UPS use for back up power failure, triping
aslo must need back up else primaty protection fails leads
to fire and properties damaged
2)high short circuit current with high KA rating compared
with MCCB
3)no moving mechanism once hit fusing current fast acting
to cut of the high fault current flow.. to prevent damage
to the equipment
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
What is the function of a neutral reactor.
How maesure earth neutral value & how much maximum value value required in between earth & neutral.
How to calculate the no of Ceiling fan (1200mm sweep) per unit area?
What are the different losses In a de mac1une'! t.xplam
How do i right a ladder diagram that has 1 actuator that performs a full stroke followed by a half stroke
What is meant by celling voltage & current in excitor ?
how net resistance islow in star connection and viseversa in delta connection...? if anybody could explain in detail it wud be helpful.
by what factor the starting current is used when comparing star and delta connection for motor starting?
What is I to C?
What is precision of a measurement?
Dear all, I just want to ask an expert on this forum for some insights. For the magnetic balance test, when applied voltage on a Delta-Star transformer e.g. Dyn11, the following relationships apply for HV side: 1. H1-H2 = H2-H3 H3-H1 2. H2-H3 = H3-H1 H1-H2 3. H3-H1 = H1-H2 H2-H3 For the LV side also: 4. X1-X0 = X2-X0 X3-X0 5. X2-X0 = X3-X0 X1-X0 6. X3-X0 = X1-X0 X2-X0 Is there a similar pattern for Y-d, Y-Y, D-d? And how about Y-z, D-z, Z-y transformers? I've tested a YNzn5 transformer and for LV side I don't see the pattern. In this particular case I got for LV side the following (see values below): H1-H0 H2-H0 H3-H0 X0-X1 X0-X2 X0-X3 128.0 119.9 7.2 29.2 13.3 15.8 70.7 128.4 59.2 23.4 22.0 3.6 7.2 120.1 128.1 13.4 29.3 15.8 What is the relationship here for LV? For row 1 I see the relationship, for row 3 I also see but it's shifted, but for row 2 I don't see such relationship. Any suggestions, answers, someone?
What are the different types of transformers?
What is step signal?
I am a possesor of c licence from 1993. I forgot to renew during the year 1998. During that time I was working at TNEB to till date. Is there any possibility to get renewed? or to apply for a new one?
how to test the turn ratio of 3 phase transformer using volt meter shoe the curcit diagram.