What are HRC fuses and where it is used?

What are HRC fuses and where it is used?
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2 Answers

Answer :

If the voltage between the two phases is equal to the lamp voltage then the lamp will glow.
 When the voltage difference is big it will damage the lamp and when the difference is smaller the lamp will glow depending on the type
of lamp.
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Answer :

HRC stand for "high rupturing capacity" fuse and it is used in distribution system for electrical transformers.
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Related questions

How the required conductor size can be reduced by use of HRC fuses?

Description : How the required conductor size can be reduced by use of HRC fuses?

Last Answer : HRC fuse limits the peak amplitude of fault current. HRC fuse melts at prospective current but not allows circuit to pass their high rupturing capacity that is it’s kA. 

What is the advantage of HRC fuses when compared with rewireable fuses?

Description : What is the advantage of HRC fuses when compared with rewireable fuses?

Last Answer : Ans.HRC fuses have high rupturing capacity, high speed of operation and no aging effect.

What are the characteristics of CB, OLR and HRC Fuse?

Description : What are the characteristics of CB, OLR and HRC Fuse?

Last Answer : When CB is used the CB characteristics should be below the fuse, because the CB should operate first and then fuse. Not vice-versa. Because CB is the main protection or main breaking device.  

Coast Guard Regulations (46 CFR) require that each alternating current generator arranged for parallel operation shall be provided with _____________. A. more than one means of excitation B. individual circuit fuses C. a high back-pressure trip D. a reverse-power trip

Description : Coast Guard Regulations (46 CFR) require that each alternating current generator arranged for parallel operation shall be provided with _____________. A. more than one means of excitation B. individual circuit fuses C. a high back-pressure trip D. a reverse-power trip

Last Answer : Answer: D

When changing fuses, you should always _____________. A. wear rubber boots B. use a fuse puller C. stand on a rubber mat D. wear safety glasses

Description : When changing fuses, you should always _____________. A. wear rubber boots B. use a fuse puller C. stand on a rubber mat D. wear safety glasses

Last Answer : Answer: B

Which of the following precautions should be taken when a blown fuse, rated at 10 amperes, is replaced? A. Short out the fuse before removing it from the circuit. B. Use needle-nose pliers to remove fuse from the circuit. C. Replace blown fuse with one of equal voltage and ampere capacity. D. Fuses of 10 ampere rating and less are virtually harmless when energized and may be handled freely.

Description : Which of the following precautions should be taken when a blown fuse, rated at 10 amperes, is replaced? A. Short out the fuse before removing it from the circuit. B. Use needle-nose pliers to ... D. Fuses of 10 ampere rating and less are virtually harmless when energized and may be handled freely.

Last Answer : Answer: C

If a voltage tester is being used to check for defective fuses in the circuit, shown in the illustration, which of the readings will indicate that fuse #2 is open? EL-0062 A. C-B full voltage B. A-D full voltage C. A-D no voltage D. C-B no voltage

Description : If a voltage tester is being used to check for defective fuses in the circuit, shown in the illustration, which of the readings will indicate that fuse #2 is open? EL-0062 A. C-B full voltage B. A-D full voltage C. A-D no voltage D. C-B no voltage

Last Answer : Answer: C

If the motor shown in the illustration will not start when 'Q' is depressed, which of the listed components should be checked FIRST? EL-0017 A. Fuses 'F-1' and 'F-2'. B. Operating coil 'C'. C. Contacts 'H-1', 'H-2', and 'H-3'. D. Contact 'H-4'.

Description : If the motor shown in the illustration will not start when 'Q' is depressed, which of the listed components should be checked FIRST? EL-0017 A. Fuses 'F-1' and 'F-2'. B. Operating coil 'C'. C. Contacts 'H-1', 'H-2', and 'H-3'. D. Contact 'H-4'.

Last Answer : Answer: A

When testing for blown fuses in a three-phase supply circuit to a motor, you should first ___________________. A. apply the megger across the tops of the line fuses B. apply an ammeter diagonally across the top of the first line fuse and the bottom of the third line fuse C. apply the voltage tester across the bottoms of the line fuses D. ensure the circuit is de-energized, and then use a continuity tester

Description : When testing for blown fuses in a three-phase supply circuit to a motor, you should first ___________________. A. apply the megger across the tops of the line fuses B. apply an ammeter diagonally across ... of the line fuses D. ensure the circuit is de-energized, and then use a continuity tester

Last Answer : Answer: D

In addition to short circuits and sustained overloads, fuses are likely to blow due to _____________. A. loose fuse clips B. low ambient temperatures C. low contact resistance D. all of the above

Description : In addition to short circuits and sustained overloads, fuses are likely to blow due to _____________. A. loose fuse clips B. low ambient temperatures C. low contact resistance D. all of the above

Last Answer : Answer: A

Fuses are usually rated in _____________. A. watts B. amps only C. volts only D. amps and volts

Description : Fuses are usually rated in _____________. A. watts B. amps only C. volts only D. amps and volts

Last Answer : Answer: D

To check the three line fuses of a three-phase system consisting of a three-phase motor, you must _____________. A. place the starter in the 'stop' position B. make sure the motor is operating at full load to guard against a false reading C. place the leads across the 'hot' ends of the fuses D. place the leads across the bottom ends of the fuses

Description : To check the three line fuses of a three-phase system consisting of a three-phase motor, you must _____________. A. place the starter in the 'stop' position B. make sure the motor is operating at full ... leads across the 'hot' ends of the fuses D. place the leads across the bottom ends of the fuses

Last Answer : Answer: A

If a circuit breaker that utilizes built-in, current limiting fuses (CLF's) cannot be closed, the problem may be traced to __________. A. a blown CLF plunger holding the trip bar in the open position B. a missing CLF C. a misaligned limiter housing assembly D. all of the above

Description : If a circuit breaker that utilizes built-in, current limiting fuses (CLF's) cannot be closed, the problem may be traced to __________. A. a blown CLF plunger holding the trip bar in the open position B. a missing CLF C. a misaligned limiter housing assembly D. all of the above

Last Answer : Answer: D

When troubleshooting a console circuit card suspected of being faulty, the last step would be to _______________. A. check the fuses and voltage levels of all power supplies in the console B. clean dust and debris from the card and burnish the sliding connections C. make sure all connections are tight including wire wrappings and push-on types D. substitute a new or repaired spare card and check the operation of the circuit

Description : When troubleshooting a console circuit card suspected of being faulty, the last step would be to _______________. A. check the fuses and voltage levels of all power supplies in the console B. clean dust ... -on types D. substitute a new or repaired spare card and check the operation of the circuit

Last Answer : Answer: D

When changing fuses and the spring clips are found to have lost their grip, they should be replaced or _____________. A. tightened firmly with insulated pliers B. clip clamps should be used C. wired closed with uninsulated, varnished copper wire D. carefully bent back to their original shapes

Description : When changing fuses and the spring clips are found to have lost their grip, they should be replaced or _____________. A. tightened firmly with insulated pliers B. clip clamps should be used C. wired closed with uninsulated, varnished copper wire D. carefully bent back to their original shapes

Last Answer : Answer: B

When replacing fuses, always make sure _______________. A. to stand on a rubber mat and use rubber gloves B. to use insulated pliers or screwdriver C. the fuse clips are straight, tight, and in good contact D. to increase the fuse rating 10% to guard against 'nuisance blowing'

Description : When replacing fuses, always make sure _______________. A. to stand on a rubber mat and use rubber gloves B. to use insulated pliers or screwdriver C. the fuse clips are straight, tight, and in good contact D. to increase the fuse rating 10% to guard against 'nuisance blowing'

Last Answer : Answer: C

You are using a mechanical voltage tester to check the fuses in a three-phase circuit supplying an electric motor. For which of the following reasons must the motor be stopped during the test? A. Testing an energized circuit presents a hazard to the testing personnel. B. A faulty fuse could go undetected with the motor energized. C. Reversed polarity of the circuit would be indicated by the voltage tester with the circuit energized. D. All of the above.

Description : You are using a mechanical voltage tester to check the fuses in a three-phase circuit supplying an electric motor. For which of the following reasons must the motor be stopped during the test? A. ... circuit would be indicated by the voltage tester with the circuit energized. D. All of the above.

Last Answer : Answer: B

Due to the operating characteristics of the system, time lag fuses (or dual-element fuses) are necessary for use in _____________. A. main lighting circuits B. motor starting circuit C. emergency lighting circuits D. general alarm circuits

Description : Due to the operating characteristics of the system, time lag fuses (or dual-element fuses) are necessary for use in _____________. A. main lighting circuits B. motor starting circuit C. emergency lighting circuits D. general alarm circuits

Last Answer : Answer: B

Which of the following actions must be carried out before a voltage tester can be used to test the three line fuses to a three-phase motor? A. The fuses must be removed from the circuit. B. The starter must be placed in the STOP position to stop the motor. C. The three line connections in the motor terminal box must be disconnected and tagged. D. Nothing need be done as long as the motor is running under a light load.

Description : Which of the following actions must be carried out before a voltage tester can be used to test the three line fuses to a three-phase motor? A. The fuses must be removed from the circuit. B. The ... disconnected and tagged. D. Nothing need be done as long as the motor is running under a light load.

Last Answer : Answer: B

To test fuses in an energized circuit, you should use a ____________. A. low voltage light bulb B. megohmmeter C. voltmeter D. resistance meter

Description : To test fuses in an energized circuit, you should use a ____________. A. low voltage light bulb B. megohmmeter C. voltmeter D. resistance meter

Last Answer : Answer: C

Fuses are rated in _____________. A. voltage B. amperage C. interrupting capacity D. all the above

Description : Fuses are rated in _____________. A. voltage B. amperage C. interrupting capacity D. all the above

Last Answer : Answer: D

Fuses placed in series with a thermal trip-type circuit breaker are used for _____________. A. time-delay protection B. short-circuit protection C. short duration surge protection D. sustained overload protection

Description : Fuses placed in series with a thermal trip-type circuit breaker are used for _____________. A. time-delay protection B. short-circuit protection C. short duration surge protection D. sustained overload protection

Last Answer : Answer: B

Time delayed or delayed action-type fuses are designed to _____________. A. prevent grounds in branch circuits B. prevent opens in motor circuits C. permit momentary overloads without melting D. guard lighting and electronic circuits

Description : Time delayed or delayed action-type fuses are designed to _____________. A. prevent grounds in branch circuits B. prevent opens in motor circuits C. permit momentary overloads without melting D. guard lighting and electronic circuits

Last Answer : Answer: C

As a general rule, the first troubleshooting action to be taken in checking faulty electric control devices is to _____________. A. draw a one line diagram of the circuitry B. test all fuses and measure the line voltage C. take megger readings D. insulate the apparatus from ground

Description : As a general rule, the first troubleshooting action to be taken in checking faulty electric control devices is to _____________. A. draw a one line diagram of the circuitry B. test all fuses and measure the line voltage C. take megger readings D. insulate the apparatus from ground

Last Answer : Answer: B

Why fuses with fusing factor more than 1.5 is not allowed in PVC cables?

Description : Why fuses with fusing factor more than 1.5 is not allowed in PVC cables? 

Last Answer : Because PVC cables have low thermal capacity than paper cables. Full loading of PVC only possible if it has close excess current protection (i.e.) Fusing Factor = 1.5 

How two fuses in-series are discriminated?

Description : How two fuses in-series are discriminated? 

Last Answer : Total I2 t of minor fuse should be less than pre-arcing I2 t of major fuse. Major fuse should be greater than 1.5 times the minor fuse. 

Can I adjust the incline on the LifeSpan Fitness TR1000-HRC Treadmill?

Description : Can I adjust the incline on the LifeSpan Fitness TR1000-HRC Treadmill?

Last Answer : The incline is adjustable on this treadmill,as is the time and distance of your workout.

Capacity of battery fuse in AC Coaches a. 315 A & 400 (HRC ) c. 16 A (HRC ) b. 63 A (HRC ) d. 5 A (HRC )

Description : Capacity of battery fuse in AC Coaches a. 315 A & 400 (HRC ) c. 16 A (HRC ) b. 63 A (HRC ) d. 5 A (HRC )

Last Answer : a. 315 A & 400 (HRC )

The first non-transgenic HRC such as triaz ine resistant canola was developed in a). 1995 b). 2000 c). 1997 d). 1984

Description : The first non-transgenic HRC such as triaz ine resistant canola was developed in a). 1995 b). 2000 c). 1997 d). 1984

Last Answer : d). 1984

Describe the working of HRC fuse with neat diagram.

Description : Describe the working of HRC fuse with neat diagram.

Last Answer : Working of HRC Fuse: Under normal conditions, the fuse element is at a temperature below its melting point. Therefore, it carries the normal current without overheating. When a fault ... powder and results in the formation of high resistance substance that helps in quenching the arc. 

Explain construction and characteristics of HRC fuse.

Description : Explain construction and characteristics of HRC fuse.

Last Answer : Construction of H.R.C. Fuse: Figure shows the essential parts of a typical H.R.C. fuse. It mainly consist of a heat resisting ceramic body. Both the ends of the cermaic body consists ... particular circuit and for coordination purpose. A typical Fuse characteristic is shown in figure below. 

ln HRC fuse the time between cut-off and final current zero is called

Description : ln HRC fuse the time between cut-off and final current zero is called

Last Answer : ln HRC fuse the time between cut-off and final current zero is called the arcing time

what is HRC fuse?

Description : what is HRC fuse?

Last Answer : HRC (High Rupturing Capacity) fuse HRC fuse is High Rupturing Capacity fuse. At the time of fault it disconnect the circuit very fast. Filling powder is silica sand. No flashover ... speed response Reliable No maintenance CheaperDisadvantages:- We have to replace it manually after each operation.

Do all red-haired women really have short fuses?

Description : Do all red-haired women really have short fuses?

Last Answer : answer:One of my very favourite childhood friends is a redhead and she is an extremely friendly, sociable, approachable, and easygoing person. I don't remember her ever losing her temper on anyone. If she has a ... them. Even I have wished I was born with red hair at at least one point in my life.

The king dies and two men, the true heir and an impostor, both claim to be his long-lost son. Both fit the description of the rightful heir: about the right age, height, coloring and general appearance. Finally, one of the elders proposes a test to identify the true heir. One man agrees to the test while the other flatly re-fuses. The one who agreed is immediately sent on his way, and the one who re-fused is correctly identified as the rightful heir. Can you figure out why? -Riddles

Description : The king dies and two men, the true heir and an impostor, both claim to be his long-lost son. Both fit the description of the rightful heir: about the right age, height, coloring and general ... the one who re-fused is correctly identified as the rightful heir. Can you figure out why? -Riddles

Last Answer : The test was a blood test. The elder remembered that the true prince was a hemophiliac.

Name the areas which were known as 'electrical fuses' of vietnam ? -SST 10th

Description : Name the areas which were known as 'electrical fuses' of vietnam ? -SST 10th

Last Answer : Ans: Ngu an and Ha Tien. They were electrical fuses of Vietnam because they were the first to be adversely affected by any uprisal or protest against the French. hope u find it useful, plz do not hesitate if any doubts . -aasiya

What were ‘electrical fuses’ of Vietnam? -SST 10th

Description : What were ‘electrical fuses’ of Vietnam? -SST 10th

Last Answer : The Great Depression of the 1930s had a profound impact on Vietnam. The prices of rubber and rice fell, leading to rising rural debts, unemployment and rural uprisings, such as in the ... blow. The French put these uprisings down with great severity, even used planes to bomb demonstrators.

Why were Nghe An and Ha Tinh provinces called the electrical fuses of Vietnam ? -SST 10th

Description : Why were Nghe An and Ha Tinh provinces called the electrical fuses of Vietnam ? -SST 10th

Last Answer : The prices of rubber and rice fell, leading to rising rural debts, unemployment and rural uprisings in the provinces of Nghe An and Ha Tinh. Since the provinces of Nghe An and Ha Tinh got ... whenever the colonial system came under pressure, these regions were the first to rise up in rebellion. .

In exocytosis, the membrane package fuses with?

Description : In exocytosis, the membrane package fuses with?

Last Answer : The cell membrane fuses with the membrane package inexocytosis.

How many types of fuses and what are they ?

Description : How many types of fuses and what are they ?

Last Answer : : Three types of fuses according to the structure: 1. Re-wearable 2. Cartridge 3. Two types of fuses according to HRC voltage: 1. Low-voltage 2. High-voltage

How many ampere fuses are used for electric bulbs and fans ?

Description : How many ampere fuses are used for electric bulbs and fans ?

Last Answer : 5 amp fuses are used for electric bulbs and fans.

How many ampere fuses are used for ironing machine ?

Description : How many ampere fuses are used for ironing machine ?

Last Answer : 15 amp fuse is used for ironing machine.

Failure of fuses.

Description : When I turn on the dishwasher in the cottage, it fills the pump, the computer runs and the heater heats the water, so the fuses blow out. You just can't have a few e-mails running. things at the same time. What can you do? It bothers me.

Last Answer : Call an electrician and increase the circuit breaker power. I don't know what it's professionally called. But I have experience with it. It wasn't here but it will be the same everywhere. I just ... . energy and tell them the same thing you told us here. He will definitely explain and advise you.

Assertion : The nucleus of sperm fuses with the nucleus of ovum , before the formation of ootid . Reason : Diploid nuclear status of organism is essen

Description : Assertion : The nucleus of sperm fuses with the nucleus of ovum , before the formation of ootid . Reason : Diploid nuclear status of organism is essen

Last Answer : Assertion : The nucleus of sperm fuses with the nucleus of ovum , before the formation of ootid . ... . D. If both Assertion & Reason are False.

Where is the heater Fuses for grand caravan?

Description : Where is the heater Fuses for grand caravan?

Last Answer : Need answer

What in exocytosis the membrane package fuses with?

Description : What in exocytosis the membrane package fuses with?

Last Answer : The cell membrane fuses with the membrane package inexocytosis.

does this have internal fuses?

Description : does this have internal fuses?

Last Answer : Yes, all this microwave's components are installed inside the casing.

How long would the Suns initial supply of hydrogen last in both seconds and yrs as it fuses 600 bil. k ea. second total H avail. in its lifetime is 1.8x10 to 2nd pwr?

Description : How long would the Suns initial supply of hydrogen last in both seconds and yrs as it fuses 600 bil. k ea. second total H avail. in its lifetime is 1.8x10 to 2nd pwr?

Last Answer : You are supposed to divide the total amount of hydrogen, by the consumption per second. That will give you the time in seconds. You can then convert that to years, by dividing by the number of seconds in a year.

Which of these are alternatives to fuses?

Description : Which of these are alternatives to fuses?

Last Answer : circuit breakers