What is the maximum number of circuit breakers in a panel?

What is the maximum number of circuit breakers in a panel?
by

1 Answer

Answer :

It depends on that which type of panel is this.
by

Related questions

Which of the following circuit breakers has high reliability & minimum maintenance?

Description : Which of the following circuit breakers has high reliability & minimum maintenance?  (A) Bulk oil type CB (B) Air blast CB (C) Vacuum CB (D) Sulphur hexafluoride CB 

Last Answer : Which of the following circuit breakers has high reliability & minimum maintenance?  (A) Bulk oil type CB (B) Air blast CB (C) Vacuum CB (D) Sulphur hexafluoride CB 

The following is/are the characteristics of SF6 circuit breakers:

Description : The following is/are the characteristics of SF6 circuit breakers:  (A) It does not need an auxiliary breaking chamber (B) Short break time of 2 to 2.5 cycles (C) All of the above (D) None of the above

Last Answer : The following is/are the characteristics of SF6 circuit breakers:  (A) It does not need an auxiliary breaking chamber (B) Short break time of 2 to 2.5 cycles (C) All of the above (D) None of the above

Magnetic circuit breakers use _________

Description : Magnetic circuit breakers use _________ A) Permanent magnets B) Earth magnets C) Solenoid D) All the above

Last Answer : Magnetic circuit breakers use Solenoid 

Air blast circuit breakers for 400 kV power system are designed to operate in?

Last Answer : Air blast circuit breakers for 400 kV power system are designed to operate in 50 millisecond.

The time of closing the cycle, in modern circuit breakers is?

Last Answer : The time of closing the cycle, in modern circuit breakers is 0.003 sec.

The current zero interruption, in oil and air blast circuit breakers, is achieved by?

Description : The current zero interruption, in oil and air blast circuit breakers, is achieved by?

Last Answer : The current zero interruption, in oil and air blast circuit breakers, is achieved by lengthening of the gap, cooling and blast effect.

Circuit breakers are essentially?

Last Answer : Circuit breakers are essentially current carrying contacts called electrodes.

Circuit breakers usually operate under?

Last Answer : Circuit breakers usually operate under transient state of short-circuit current.

State maximum power transfer theorem for DC circuit.

Description : State maximum power transfer theorem for DC circuit.

Last Answer : Maximum power transfer theorem for DC circuit: The maximum power transfer theorem states that the source or a network transfers maximum power to load only when the load resistance is equal ... removed (disconnected) ii) All internal independent sources are replaced by their internal resistances.

In which fault the maximum short circuit current occurs?

Description : In which fault the maximum short circuit current occurs?

Last Answer : In three phase bolted fault the maximum short circuit occurs.

How can I install an aluminium composite panel?

Description : How can I install an aluminium composite panel?

Last Answer : The old standby’s: duct tape and baling wire. Oh, and self tapping screws.

What is CLS panel. Explain its importance?

Description : What is CLS panel. Explain its importance?

Last Answer : Ans. CLS panel is the abbreviation of colour light signaling panel. It is the equipment which supplies uninterrupted power supply to signaling equipment by providing three power sources Supply, i.e UP ... signaling systems, it will result in detention of trains. Hence CLS panel is very important.

How to Remove a Door Panel

Description : How to Remove a Door Panel

Last Answer : How to Remove a Door Panel Car owners who like to do car repairs themselves often find themselves needing to remove the door panels temporarily from their vehicle. Whether it's because you're installing ... 're doing maintenance or repairs. Follow these steps, and get out your panels the right way.

Panel interview questions

Description : Panel interview questions

Last Answer : This post includes panel interview questions and answers, interview tips and how to face panel interview. In a Panel Interview or Committee interview, there are several interviewers raising questions to a ... the company and the job and keep your proper gesture until you have left the company.

List any four measure knobs on front panel on CRO.

Description : List any four measure knobs on front panel on CRO.

Last Answer : Knobs on front panel of CRO: 1. Power ON- OFF 2. Intensity control 3. Focus control 4. Astigmatism control 5. Volt/Div control 6. Vertical position control 7. Invert 8. Horizontal position control 9. Synchronization. 10. Channel selection.

Why do you need a closed circuit for electricity to flow?

Description : Why do you need a closed circuit for electricity to flow?

Last Answer : When  the  circuit  is  closed  , a potential  diffrence  is  realized  between  the  two  nodes  connected  .This  causes  flow of  electrons  and  convection  current.

What number is your Willpower?

Description : What number is your Willpower?

Last Answer : 10 but then I cheated so I don’t know… but I’m being honest about it so 10 or am I lying again… so definitely between 1 and 10

What is the choice of size and number of generator units in interconnected power system?

Description : What is the choice of size and number of generator units in interconnected power system?

Last Answer : Choice of Size and Number of Generating Units: 1. The size/rating and number of generating units in such way that they approximately match with the load curve as closely as possible. 2. In ... , if power plant is connected to grid system then generating unit of higher capacity can be installed.

The number of loop equations required to completely analysing a network comprising of 8 independent

Description :  The number of loop equations required to completely analysing a network comprising of 8 independent branches and 6 nodes including the reference node shall be A) 3 B) 2 C) 4 D) 5 

Last Answer :  The number of loop equations required to completely analysing a network comprising of 8 independent branches and 6 nodes including the reference node shall be 3 

A connected graph has ‘5’ number of branches and ‘4’ number of nodes. It's rank is

Description :  A connected graph has ‘5’ number of branches and ‘4’ number of nodes. It's rank is A) 1 B) 2 C) 3 D) 4 

Last Answer :  A connected graph has ‘5’ number of branches and ‘4’ number of nodes. It's rank is 3 

Then number of T-states of the instruction STA in 8085 microprocessor is

Description : Then number of T-states of the instruction STA in 8085 microprocessor is A) 10 B) 12 C) 13 D) 16 

Last Answer : Then number of T-states of the instruction STA in 8085 microprocessor is 13 

The number of terminals present in IGBT is

Description : The number of terminals present in IGBT is A) 2 B) 3 C) 4 D) 5

Last Answer : The number of terminals present in IGBT is 3

Increasing the number of turns of wire on the secondary of a transformer will

Description : Increasing the number of turns of wire on the secondary of a transformer will  (A) Decrease the secondary current (B) Increase the primary current (C) Have no effect on the secondary current (D) Increase the secondary current

Last Answer : Increasing the number of turns of wire on the secondary of a transformer will Decrease the secondary current 

What is the Gray code word for the binary number 101011?

Description : What is the Gray code word for the binary number 101011?  (1) 101011 (2) 110101 (3) 011111 (4) 111110

Last Answer : What is the Gray code word for the binary number 101011?  (1) 101011 (2) 110101 (3) 011111 (4) 111110

The number of poles of 8/6 stepper motor can be :

Description : The number of poles of 8/6 stepper motor can be :

Last Answer : The number of poles of 8/6 stepper motor can be : 4

lt the length, number of turns and area of a coil are doubled, the inductance of the coil

Description : lt the length, number of turns and area of a coil are  doubled, the inductance of the coil

Last Answer : lt the length, number of turns and area of a coil are  doubled, the inductance of the coil is quadrupled

The number of independent equations to solve a network is equal to?

Description : The number of independent equations to solve a network is equal to?

Last Answer : The number of independent equations to solve a network is equal to the number of chords.

The number of electrons in the outer most orbit of carbon atom is?

Description : The number of electrons in the outer most orbit of carbon atom is?

Last Answer : The number of electrons in the outer most orbit of carbon atom is 4.

A number of forces acting at a point will be in equilibrium if?

Description : A number of forces acting at a point will be in equilibrium if?

Last Answer : The sum of the resolved parts in any two perpendicular directions are both zero

Build using minimum number of CMOS gates.

Description : Build using minimum number of CMOS gates. Three input NAND gate. Two input NOR gate Three input NOR gate Two input AND gate Two input OR gate

Last Answer : Three input NAND gate. Two input NOR gate Three input NOR gate Two input AND gate Two input OR gate

The number of brushes in a commutator depends on?

Last Answer : The number of brushes in a commutator depends on amount of current to be collected.

In lap winding, the number of brushes is always?

Last Answer : In lap winding, the number of brushes is always same as the number of poles.

What are the number of valence electrons of atoms in semiconductor?

Description : What are the number of valence electrons of atoms in semiconductor?

Last Answer : There are four valence electrons in the atom of a semiconductor.

Define : i) Maximum Value ii) RMS Value of ac supply

Description : Define : i) Maximum Value ii) RMS Value of ac supply

Last Answer : i) Maximum Value :- The maximum or peak value attained by an alternating quantity during positive or negative half cycle, is called maximum value or peak value.  ii) RMS Value of ac ... as produced by the alternating current when flowing through the same resistance and for the same time. 

Define the following terms: 1) Virtual height 2) Actual height 3) Critical frequency. 4) Maximum usable frequency.

Description : Define the following terms: 1) Virtual height 2) Actual height 3) Critical frequency. 4) Maximum usable frequency.

Last Answer : 1) Virtual height:- The incident and refracted rays follow paths that are exactly the same as they have been if reflection had taken place from a surface located at a greater height, called ... angle of incidence is other than the normal is known as maximum unstable frequency. MUF= fc secθ 

Maximum Power Transfer Theorem 1

Description : Maximum Power Transfer Theorem 1

Last Answer : Maximum Power Transfer Theorem 1

An independent voltage source in series with an impedance ZS=R+jXS delivers a maximum average power to

Description :  An independent voltage source in series with an impedance ZS=R+jXS delivers a maximum average power to a load impedance ZL when A) ZL = R B) ZL = jXS C) ZL = R-jXS D) ZL = R+jXS 

Last Answer :  An independent voltage source in series with an impedance ZS=R+jXS delivers a maximum average power to a load impedance ZL when ZL = R-jXS

A certain power MOSFET has a maximum junction temperature specification of 1500o C, a junction-to-case

Description : A certain power MOSFET has a maximum junction temperature specification of 1500o C, a junction-to-case thermal resistance of 1.00 C/W, and a junction-to ambient thermal resistance of 600 C/W. If the ambient temperature is 300o C ... the device will be A) 1.52 W B) 1.72 W C) 1.92W D) 2.00 W

Last Answer : A certain power MOSFET has a maximum junction temperature specification of 1500o C, a junction-to-case thermal resistance of 1.00 C/W, and a junction-to ambient thermal resistance of  ... 300o C, then the maximum allowable power dissipation in the device will be 2.00 W 

The maximum reluctance power of a salient-pole synchronous motor having direct-axis reactance, 1.0 pu and

Description : The maximum reluctance power of a salient-pole synchronous motor having direct-axis reactance, 1.0 pu and quadrature-axis reactance, 0.5 pu, and input voltage, 1.0 pu is (A) 0.25 pu (B) 0.5 pu (C) 1.0 pu (D) 1.5 pu

Last Answer : The maximum reluctance power of a salient-pole synchronous motor having direct-axis reactance, 1.0 pu and quadrature-axis reactance, 0.5 pu, and input voltage, 1.0 pu is 0.5 pu

The maximum torque of d.c. motors is limited by?

Description : The maximum torque of d.c. motors is limited by?

Last Answer : The maximum torque of d.c. motors is limited by commutation.

For maximum transfer of power, internal resistance of the source should be?

Description : For maximum transfer of power, internal resistance of the source should be?

Last Answer : For maximum transfer of power, internal resistance of the source should be equal to load resistance.

"Maximum power output is obtained from a network when the load resistance...

Description : "Maximum power output is obtained from a network when the load resistance is equal to the output resistance of the network as seen from the terminals of the load". The above statement is associated with?

Last Answer : "Maximum power output is obtained from a network when the load resistance is equal to the output resistance of the network as seen from the terminals of the load". The above statement is associated with Maximum power transfer theorem.

Which D.C. motor has got maximum self relieving property ?

Last Answer : Series motor has got maximum self relieving property.

D.C. generators are normally designed for maximum efficiency around?

Last Answer : D.C. generators are normally designed for maximum efficiency around full-load.

The condition for maximum efficiency for a D.C. generator is?

Last Answer : The condition for maximum efficiency for a D.C. generator is variable losses equal to constant losses.

The condition for maximum power in case of D.C. motor is?

Last Answer : (b) Clostridium butylicum Lipase Removal of oil stains

The mechanical power developed by a shunt motor will be maximum when the ratio of back e.m.f. to applied voltage is?

Last Answer : The mechanical power developed by a shunt motor will be maximum when the ratio of back e.m.f. to applied voltage is 0.5.

In a D.C. shunt motor, under the conditions of maximum power, the current in the armature will be?

Last Answer : In a D.C. shunt motor, under the conditions of maximum power, the current in the armature will be more than full-load current.

In repulsion motor, maximum torque is developed when?

Last Answer : In repulsion motor, maximum torque is developed when brush axis is at 45° electrical to the field axis.

The maximum constant load torque under which a synchronous motor will pull into synchronism...

Description : The maximum constant load torque under which a synchronous motor will pull into synchronism at rated rotor supply voltage and frequency is known as?

Last Answer : The maximum constant load torque under which a synchronous motor will pull into synchronism at rated rotor supply voltage and frequency is known as pull-in torque.