The fuse rating is expressed in terms of?

by

1 Answer

Answer :

The fuse rating is expressed in terms of current.

by

Related questions

The rating of transformer may be expressed in ____________.

Description : The rating of transformer may be expressed in ____________.  (A) kVAR (B) kW (C) kVA (D) Horse power

Last Answer : The rating of transformer may be expressed in kVA . 

A fuse wire should have :

Description : A fuse wire should have :  (A) Low specific resistance and high melting point (B) Low specific resistance and low melting point (C) High specific resistance and high melting point (D) High specific resistance and low melting point

Last Answer : A fuse wire should have : High specific resistance and low melting point

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

A fuse in a motor circuit provides protection against?

Last Answer : A fuse in a motor circuit provides protection against short-circuit and overload.

The fuse blows off by?

Last Answer : The fuse blows off by melting.

H.R.C. fuse, as compared to a rewirable fuse, has?

Last Answer : H.R.C. fuse, as compared to a rewirable fuse, has no ageing effect, high speed of operation, high rupturing capacity.

A fuse is connected?

Last Answer : A fuse is connected in series with circuit.

The material used for fuse must have?

Last Answer : The material used for fuse must have low melting point and high specific resistance.

The main function of a fuse is to?

Last Answer : The main function of a fuse is to prevent excessive currents.

Boiler rating is usually defined in terms of

Description : Boiler rating is usually defined in terms of  (1) Maximum temperature of steam in Kelvin (2) Heat transfer rate in KJ/hr (3) Heat transfer area in metre2 (4) Steam output in kg/hr

Last Answer : Boiler rating is usually defined in terms of Steam output in kg/hr

The transformer ratings are usually expressed in terms of?

Last Answer : The transformer ratings are usually expressed in terms of kVA.

How rating of main switch and cable is selected for Industrial Installation.

Description : How rating of main switch and cable is selected for Industrial Installation.

Last Answer : 1. Rating of Main Switch or Fuse Rating is decided in industrial installation: Rating of main switch or fuse is based up the starting current of motor. For calculating starting current is considered 2 ... take 1.5 times the rated current or full load current. & thus cable rating is decided.

Why Transformer rating is given in kVA?

Description : Why Transformer rating is given in kVA?

Last Answer : Because of core losses and iron losses as core losses are measured in amps and cu losses in voltage ....this is definatly reason for the rating Or kVA is the unit for apparent power. Apparent ... shift between voltage and current). So a transformer has to be rated (and selected) by apparent power.

Define kVA rating of transformer.

Description : Define kVA rating of transformer.

Last Answer : kVA rating of transformer is defined as the product of voltage (V) and current (I) on primary side of transformer or secondary side of transformer divided by 1000. On both side the VA rating remains ... Mathematically kVA rating is given by, kVA rating of transformer = V1I1/1000 =V2I2/1000

The kVA rating of Three-phase transformer with Voltage = 200V and Current = 100A will be :

Description : The kVA rating of Three-phase transformer with Voltage = 200V and Current = 100A will be :  (A) 34.64 kVA (B) 75 kVA (C) 20 kVA (D) None of the above

Last Answer : The kVA rating of Three-phase transformer with Voltage = 200V and Current = 100A will be : 34.64 kVA

For the same H.P. rating and full load speed, following motor has poor starting torque?

Last Answer : For the same H.P. rating and full load speed, following motor has poor starting torque differentially compounded.

The wattage rating for a ceiling fan motor will be in the range?

Last Answer : The wattage rating for a ceiling fan motor will be in the range 50 to 150 W .

What is fuse?

Description : What is fuse?

Last Answer : Ans. Fuse is used to protect an electric circuit when the rated current exceeds in the circuit the fuse wire melts and opens the circuit.

State any two advantages of MCB over Fuse. State the standard specifications of MCB available in the market.

Description : State any two advantages of MCB over Fuse. State the standard specifications of MCB available in the market.  

Last Answer : Following advantages of MCB over Fuse: 1. No need of replacement of fuse wire. 2. Manually restore of supply is simple. 3. Fault understanding by visual inspection 4. More safe than fuse The standard specifications of ... 6A, 10A,16A,20A, 25A, 30A, 32A, 40A, 50A, 60A and 63A 6. 250V and 450 v

State the material used for making (1) Magnetic Core (2) Fuse element

Description : State the material used for making (1) Magnetic Core (2) Fuse element  

Last Answer : The material used for making of:  (1) Magnetic Core : Iron, cobalt, Nickel, CRGO, HRGO , silicon steel  (2) Fuse Element: Tin- lead wire, Tinned copper wire 

Write applications of each of the following:(i) Fuse (ii) MCB (iii) MCCB.

Description : Write applications of each of the following:(i) Fuse (ii) MCB (iii) MCCB.

Last Answer : i) Applications of fuse:  * Used in domestic installations to provide short circuit protection.  * Used in commercial / Industrial installations to provide overload and short circuit protection.  * Used in ...  * Rectifiers panels,  * U.P.S, Electronic equipment,  * Motors,  * Furnaces

Give the function of fuse and switch.

Description : Give the function of fuse and switch.

Last Answer : Functions of fuse:  * To break the circuit under fault condition.  * To provide overcurrent protection to the circuit.  * To provide short circuit protection to the circuit.  * To provide ...  * To make the electric circuit manually.  * To break the electric circuit manually.

What is a fuse ?

Description : What is a fuse ?

Last Answer :  A Fuse is a protective device which prevent overloading of current in a circuit.

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.

Badminton Terms

Description : Badminton Terms

Last Answer : A complete list of badminton terms would be almost impossible to compress onto a single webpage, but here are some of the most important ones: Smash - A strong overheard shot that causes the shuttle ... , and eventually get you in tune with the mechanics to the point where it improves your game.

Define the terms incandescent and incandescent lamp.

Description : Define the terms incandescent and incandescent lamp.

Last Answer : Incandescent is the phenomenon in which the object emits or creates light when it is heated. An incandescent lamp is a lamp in which the filament is heated by electrical current & light is created.

Important Terms in Magnetic Circuit

Description : Important Terms in Magnetic Circuit

Last Answer : Important Terms in Magnetic Circuit

What does the term demonstrably real mean? See detail.

Description : What does the term demonstrably real mean? See detail.

Last Answer : No. Demonstably means it can be demonstrated. So you can show me some fake gold and tell me about it, but to demonstrate you were conned, I'd need some more evidence. After all, I have some ... they were locked in a cell or didn't have physical access to the other potential victims, or something).

Mathematically speaking... what actually is a Matrix?

Description : Mathematically speaking... what actually is a Matrix?

Last Answer : A Matrix is a grid. Good example is a Chess board.

What's another term for cafe?

Description : What's another term for cafe?

Last Answer : Coffee house, espresso bar, java the hut (no that’s Star Wars), ummm, I’ll keep thinking about it. Are you naming a business?

When one person calls another "closed-minded", is he more likely to be making an observation, or saying that his opposite doesn't agree with him?

Description : When one person calls another "closed-minded", is he more likely to be making an observation, or saying that his opposite doesn't agree with him?

Last Answer : It is hard to tell without the context of the conversation. It could be the former, but you refuse to see it, or the latter and the person is just calling you close-minded, because they disagree with you.

Is there a name for the physical directions as I perceive them?

Description : Is there a name for the physical directions as I perceive them?

Last Answer : Relative direction

What is something that bothers you a little, but doesn't necessarily offend?

Description : What is something that bothers you a little, but doesn't necessarily offend?

Last Answer : When people approach me and speak to me in a language other than English, thinking I speak their languages. I’m not offended at all but rather embarrassed that I know only one language and sometimes they give me a look that seems to say, “oh, one of those… poor thing.”

Dharma, Karma and ?

Description : Dharma, Karma and ?

Last Answer : Brahman

Where would you rate Ronald Reagan among US Presidents?

Description : Where would you rate Ronald Reagan among US Presidents?

Last Answer : I think the “fat little dutchman” did good, made me laugh on numerous occasions.

On a scale from 0 to 10, how do you rate the numbers in that scale?

Description : On a scale from 0 to 10, how do you rate the numbers in that scale?

Last Answer : 1: 1 2: 2 3: 3 4: 4 5: 7 6: 5 7: 6 8: 10 9: 8 10: 9

The rating of fuse wire is always expressed in

Description : The rating of fuse wire is always expressed in   (a) volts (b) amperes (c) ampere-volt (d) ampere-hours 

Last Answer : The rating of fuse wire is always expressed in Amperes 

Define the following terms related to circuit breaker. 1) Breaking Capacity 2) Making Capacity 3) Short time rating and 4) Normal current rating

Description : Define the following terms related to circuit breaker. 1) Breaking Capacity 2) Making Capacity 3) Short time rating and 4) Normal current rating

Last Answer : 1) Breaking Capacity: It is current (r.m.s) that a circuit breaker is capable of breaking at given recovery voltage under specified conditions (e.g. power factor, rate of rise of ... under specified conditions. The only limitation in this case is the temperature rise of current-carrying parts.

The capacity of a battery is expressed in terms of A. Current rating B. Voltage rating C. Ampere hour rating D. None of the above

Description : The capacity of a battery is expressed in terms of A. Current rating B. Voltage rating C. Ampere hour rating D. None of the above

Last Answer : C. Ampere hour rating

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. 

Describe the difference between fuse and MCCB.

Description : Describe the difference between fuse and MCCB.

Last Answer : Sr. No Fuse MCCB 1 Fuse melts / fuses in case of excessive load. MCCB trips off in case of excessive load. 2 Fuse needs to be replaced after every ... Generally protects the load against short-circuit. Generally protects the load against different types of faults.

A relay has a rating of 5 A, 2.2 sec IDMT and a relay setting of 125% TMS = 0.6. It is connected to a supply

Description : A relay has a rating of 5 A, 2.2 sec IDMT and a relay setting of 125% TMS = 0.6. It is connected to a supply circuit through a C.T. 400/5 ratio. The fault current is 4000 A. The operating current of the relay is

Last Answer : A relay has a rating of 5 A, 2.2 sec IDMT and a relay setting of 125% TMS = 0.6. It is connected to a supply circuit through a C.T. 400/5 ratio. The fault current is 4000 A. The operating current of the relay is 6.25A

What is the fuse rating in HT side of 11.4kv500kva transformer?

Description : What is the fuse rating in HT side of 11.4kv500kva transformer?

Last Answer : You need to specify the phase. I assume it is 3 phase system.Then the HT current is 30.3 amps

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

In the illustration if BRANCH NO. 1 is a lighting circuit for crew's berthing, Federal Regulations (46 CFR) require the maximum fuse rating for that branch to be _________. EL-0013 A. 80% of the connected load B. 15 amps C. 20 amps D. 30 amps

Description : In the illustration if BRANCH NO. 1 is a lighting circuit for crew's berthing, Federal Regulations (46 CFR) require the maximum fuse rating for that branch to be _________. EL-0013 A. 80% of the connected load B. 15 amps C. 20 amps D. 30 amps

Last Answer : Answer: C

In the illustration if BRANCH NO. 1 is a lighting circuit for crew's berthing, 46 CFR requires the maximum fuse rating for that branch to be _________. EL-0013 A. 15 amps B. 80% of the connected load C. 20 amps D. 30 amps

Description : In the illustration if BRANCH NO. 1 is a lighting circuit for crew's berthing, 46 CFR requires the maximum fuse rating for that branch to be _________. EL-0013 A. 15 amps B. 80% of the connected load C. 20 amps D. 30 amps

Last Answer : Answer: C

Using a fuse whose rating is higher than necessary ________. A. endangers the apparatus it is supposed to protect B. reduces the possibility of short circuits C. increases the efficiency of the equipment by allowing more current to be used D. wastes money because they are more expensive

Description : Using a fuse whose rating is higher than necessary ________. A. endangers the apparatus it is supposed to protect B. reduces the possibility of short circuits C. increases the efficiency of the equipment by allowing more current to be used D. wastes money because they are more expensive

Last Answer : Answer: A

If a fuse of correct size and type blows frequently, ________________. A. try the next higher amperage rating B. try the next lower amperage rating C. look for trouble within the circuit D. reduce the applied voltage 10%

Description : If a fuse of correct size and type blows frequently, ________________. A. try the next higher amperage rating B. try the next lower amperage rating C. look for trouble within the circuit D. reduce the applied voltage 10%

Last Answer : Answer: C

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