What is Automatic Voltage regulator (AVR)?

What is Automatic Voltage regulator (AVR)?
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Answer :

AVR is an abbreviation for Automatic Voltage Regulator. It is important part in Synchronous Generators; it controls the output voltage of the generator by controlling its excitation current. Thus it can control the output Reactive Power of the Generator.
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What Is Automatic Voltage Regulator(avr)?

Description : What Is Automatic Voltage Regulator(avr)?

Last Answer : AVR is an abbreviation for Automatic Voltage Regulator. It is important part in Synchronous Generators, it controls the output voltage of the generator by controlling its excitation current. Thus it can control the output Reactive Power of the Generator.

What is Automatic Voltage regulator (AVR)?

Description : What is Automatic Voltage regulator (AVR)?

Last Answer :  AVR is an abbreviation for Automatic Voltage Regulator.  It is important part in Synchronous Generators; it controls the output voltage of the generator by controlling its excitation current. Thus it can control the output Reactive Power of the Generator.

When paralleling two AC generators, the frequency of the incoming machine immediately prior to closing its breaker should be ____________. A. controlled by placing the governor switch in the automatic position B. adjusted with the voltage regulator C. slightly greater than the bus frequency D. slightly less than the bus frequency

Description : When paralleling two AC generators, the frequency of the incoming machine immediately prior to closing its breaker should be ____________. A. controlled by placing the governor switch in the automatic ... regulator C. slightly greater than the bus frequency D. slightly less than the bus frequency

Last Answer : Answer: C

The device labeled 'REG SW' in the illustration is used to ___________. EL-0003 A. shift from the automatic voltage regulator to the manual voltage regulator B. shift the governor control from manual to automatic/zero droop C. enable the operator to read the field voltage on device 'REG ADJ' or device 'MAN ADJ' D. supply regulated control power to the switchboard

Description : The device labeled 'REG SW' in the illustration is used to ___________. EL-0003 A. shift from the automatic voltage regulator to the manual voltage regulator B. shift the governor control from manual to ... device 'REG ADJ' or device 'MAN ADJ' D. supply regulated control power to the switchboard

Last Answer : Answer: A

Equal power factors on paralleled AC generators are maintained by an automatic _____________. A. voltage regulator B. reverse power relay C. reverse current relay D. governor control switch

Description : Equal power factors on paralleled AC generators are maintained by an automatic _____________. A. voltage regulator B. reverse power relay C. reverse current relay D. governor control switch

Last Answer : Answer: A

The instantaneous reduction in voltage of an AC generator, resulting from an increase in load, and prior to the automatic voltage regulator correcting the situation, is called voltage ____________. A. droop B. drop C. dip D. regulation

Description : The instantaneous reduction in voltage of an AC generator, resulting from an increase in load, and prior to the automatic voltage regulator correcting the situation, is called voltage ____________. A. droop B. drop C. dip D. regulation

Last Answer : Answer: C

Why AVR changes over to manual on AVR PT fuse failure?

Description : Why AVR changes over to manual on AVR PT fuse failure? 

Last Answer : Because loss of feedback to voltage corrector.  

What are the protective parameters to changeover AVR auto to manual?

Description : What are the protective parameters to changeover AVR auto to manual? 

Last Answer : a. PT supply fail. b. Auto pulse fail. c. Supply of limiter fail. d. Supply of auto channel fail. e. Regulated supply fail. f. High auto reference. 

The illustrated device is a _______. EL-0064 A. full wave bridge rectifier B. half wave bridge rectifier C. solid state voltage regulator D. direct current (DC) filter

Description : The illustrated device is a _______. EL-0064 A. full wave bridge rectifier B. half wave bridge rectifier C. solid state voltage regulator D. direct current (DC) filter

Last Answer : Answer: A

The voltage developed by an AC generator is controlled by varying the ____________. A. speed of the prime mover B. AC excitation to the field C. DC excitation to the field D. DC excitation of the voltage regulator

Description : The voltage developed by an AC generator is controlled by varying the ____________. A. speed of the prime mover B. AC excitation to the field C. DC excitation to the field D. DC excitation of the voltage regulator

Last Answer : Answer: C

In the illustration, the component labeled 'EXC' is _______. EL-0003 A. a separate class II regulated DC generator for critical direct current loads B. a generator feeding the FLD winding through the voltage regulator. C. the controller to drive the governor for turbogenerator speed. D. the electronic driver for the switchboard metering circuits

Description : In the illustration, the component labeled 'EXC' is _______. EL-0003 A. a separate class II regulated DC generator for critical direct current loads B. a generator feeding the FLD ... to drive the governor for turbogenerator speed. D. the electronic driver for the switchboard metering circuits

Last Answer : Answer: B

The frequency of an alternator is controlled from the main switchboard by adjusting the _____________. A. frequency meter B. voltage regulator C. governor control D. sychroscope switch

Description : The frequency of an alternator is controlled from the main switchboard by adjusting the _____________. A. frequency meter B. voltage regulator C. governor control D. sychroscope switch

Last Answer : Answer: C

The cycles per second developed by the alternator aboard your vessel is determined by _____________. A. the speed of the engine driving the alternator B. the resistance applied to the field rheostat C. the synchronous speed of induction D. the adjustments made to the voltage regulator

Description : The cycles per second developed by the alternator aboard your vessel is determined by _____________. A. the speed of the engine driving the alternator B. the resistance applied to the field rheostat C. the synchronous speed of induction D. the adjustments made to the voltage regulator

Last Answer : Answer: A

When securing an AC generator, you should FIRST ___________. A. open the generator circuit breaker B. switch the voltage regulator to 'manual' C. decrease the field excitation to minimum D. reduce the load on the unit

Description : When securing an AC generator, you should FIRST ___________. A. open the generator circuit breaker B. switch the voltage regulator to 'manual' C. decrease the field excitation to minimum D. reduce the load on the unit

Last Answer : Answer: D

Prior to starting an AC generator prime mover, the voltage regulator cutout switch should be placed in the __________. A. manual position B. bus neutral position C. raise voltage position D. transfer position

Description : Prior to starting an AC generator prime mover, the voltage regulator cutout switch should be placed in the __________. A. manual position B. bus neutral position C. raise voltage position D. transfer position

Last Answer : Answer: A

Section II of the circuit shown in the illustration is the ____________. EL-0085 A. voltage regulator B. filter C. rectifier D. voltage transformer

Description : Section II of the circuit shown in the illustration is the ____________. EL-0085 A. voltage regulator B. filter C. rectifier D. voltage transformer

Last Answer : Answer: C

Section IV of the circuit shown in the illustration is the _____________. EL-0085 A. voltage regulator B. filter C. rectifier D. voltage transformer

Description : Section IV of the circuit shown in the illustration is the _____________. EL-0085 A. voltage regulator B. filter C. rectifier D. voltage transformer

Last Answer : Answer: A

Section III of the circuit shown in the illustration is a _____________. EL-0085 A. voltage regulator B. filter C. rectifier D. voltage transformer

Description : Section III of the circuit shown in the illustration is a _____________. EL-0085 A. voltage regulator B. filter C. rectifier D. voltage transformer

Last Answer : Answer: B

A switchboard for an AC electrical system requires the use of which of the following devices? A. Frequency meter. B. Ohmmeter. C. Induction voltage regulator. D. Current transformer governor.

Description : A switchboard for an AC electrical system requires the use of which of the following devices? A. Frequency meter. B. Ohmmeter. C. Induction voltage regulator. D. Current transformer governor.

Last Answer : Answer: A

The simplest method of controlling the terminal voltage of compound-wound DC generator is with a _____________. A. hand-operated field rheostat connected in series with the shunt field circuit B. separate exciter in a series with the shunt field C. carbon pile regulator in series with the load D. balance coil diverting neutral current through the shunt field

Description : The simplest method of controlling the terminal voltage of compound-wound DC generator is with a _____________. A. hand-operated field rheostat connected in series with the shunt field circuit B. ... in series with the load D. balance coil diverting neutral current through the shunt field

Last Answer : Answer: A

Silicon diodes designed for a specific reverse breakdown voltage, become useful as an electronic power supply voltage regulator, called _____________. A. tunnel diodes B. hot-carrier diodes C. compensating diodes D. Zener diodes

Description : Silicon diodes designed for a specific reverse breakdown voltage, become useful as an electronic power supply voltage regulator, called _____________. A. tunnel diodes B. hot-carrier diodes C. compensating diodes D. Zener diodes

Last Answer : Answer: D

A constant output voltage from an AC generator is maintained by the _____________. A. prime mover governor B. exciter generator C. voltage regulator D. reverse power relay

Description : A constant output voltage from an AC generator is maintained by the _____________. A. prime mover governor B. exciter generator C. voltage regulator D. reverse power relay

Last Answer : Answer: C

Regarding an AC generator connected to the main electrical bus; as the electric load and power factor vary, a corresponding change is reflected in the generator armature reaction. These changes in armature reaction are compensated for by the __________ A. governor speed droop setting B. voltage regulator C. balance coil D. phase-balance relay

Description : Regarding an AC generator connected to the main electrical bus; as the electric load and power factor vary, a corresponding change is reflected in the generator armature reaction. These changes in ... . governor speed droop setting B. voltage regulator C. balance coil D. phase-balance relay

Last Answer : Answer: B

Where automatic restart does not present a hazard after a power failure, Coast Guard Regulations (46 CFR) require motor controllers for auxiliaries vital to the propelling equipment to be provided with ________________. A. overload protection B. low voltage protection C. low voltage release D. reverse current protection

Description : Where automatic restart does not present a hazard after a power failure, Coast Guard Regulations (46 CFR) require motor controllers for auxiliaries vital to the propelling equipment to be provided ... overload protection B. low voltage protection C. low voltage release D. reverse current protection

Last Answer : Answer: C

The purpose of the automatic bus transfer shown in the illustration is to ___________. EL-0014 A. stepdown voltage to the lighting distribution panel B. provide emergency power to the lighting distribution panel C. energize the emergency switchboard from the main switchboard D. provide overcurrent protection to the lighting distribution panel

Description : The purpose of the automatic bus transfer shown in the illustration is to ___________. EL-0014 A. stepdown voltage to the lighting distribution panel B. provide emergency power to ... emergency switchboard from the main switchboard D. provide overcurrent protection to the lighting distribution panel

Last Answer : Answer: B

Equalization of the power factors of two alternators operating in parallel is accomplished _____________. A. manually, by adjusting the governor controls B. automatically, by automatic voltage regulators C. manually, adjusting the output of current transformers D. automatically, by the designed action of the governors

Description : Equalization of the power factors of two alternators operating in parallel is accomplished _____________. A. manually, by adjusting the governor controls B. automatically, by automatic voltage regulators ... the output of current transformers D. automatically, by the designed action of the governors

Last Answer : Answer: B

The kilowatt load can be adjusted on a paralleled generator by using the _____________. A. field rheostat B. governor control C. automatic voltage regulators D. hand tachometer

Description : The kilowatt load can be adjusted on a paralleled generator by using the _____________. A. field rheostat B. governor control C. automatic voltage regulators D. hand tachometer

Last Answer : Answer: B

Automatic voltage regulators provided on switchboards function to _____________. A. regulate the AC load on the generator B. protect the switchboard from high voltage C. govern prime mover speed to control voltage D. vary the field excitation to the generators

Description : Automatic voltage regulators provided on switchboards function to _____________. A. regulate the AC load on the generator B. protect the switchboard from high voltage C. govern prime mover speed to control voltage D. vary the field excitation to the generators

Last Answer : Answer: D

The type of control circuit that will not permit automatic restarting after power is restored, following a power failure is called _____________. A. low voltage protection B. low voltage release C. overload lockout D. reduced voltage restart

Description : The type of control circuit that will not permit automatic restarting after power is restored, following a power failure is called _____________. A. low voltage protection B. low voltage release C. overload lockout D. reduced voltage restart

Last Answer : Answer: A

The type of feature afforded auxiliaries vital to the operation of propelling equipment, where automatic restart after a voltage failure would not create a hazard, is termed _____________. A. low voltage protection B. high amperage protection C. low voltage release D. high amperage release

Description : The type of feature afforded auxiliaries vital to the operation of propelling equipment, where automatic restart after a voltage failure would not create a hazard, is termed _____________. A. low voltage protection B. high amperage protection C. low voltage release D. high amperage release

Last Answer : Answer: C

which is the best kardon avr?

Description : which is the best kardon avr?

Last Answer : It all depends on what you're looking for in your AVR. I'd go with a basic one if you don't need some of the more advanced features.

A database of information that is maintained by human editors and lists websites by category and subcategory with categorization is known as: 1. A search directory 2. Automated voice response (AVR) 3. Apps 4. Search Engine Optimization (SEO

Description : A database of information that is maintained by human editors and lists websites by category and subcategory with categorization is known as: 1. A search directory 2. Automated voice response (AVR) 3. Apps 4. Search Engine Optimization (SEO

Last Answer : A search directory

If the AVR, is defective, when additional loads come on will the generator be able to take it?

Description : If the AVR, is defective, when additional loads come on will the generator be able to take it?

Last Answer : No. Ask E/O and refer to Dennis T Hall.

Which instruction set architecture is used in Raspberry Pi? A. X86 B. MSP C. AVR D. ARM

Description : Which instruction set architecture is used in Raspberry Pi? A. X86 B. MSP C. AVR D. ARM

Last Answer : D. ARM 

AVR microcontroller executes most of the instruction in _________________. A. Single execution cycle. B. Double execution cycle. C. Both A& B D. None of the above.

Description : AVR microcontroller executes most of the instruction in _________________. A. Single execution cycle. B. Double execution cycle. C. Both A& B D. None of the above.

Last Answer : architecture of embedded system consists of

AVR stands for_____________________. A. Advanced Virtual RISC. B. Alf-Egil Bogen and Vegard Wollan RISC C. Both A & B D. None of the above

Description : AVR stands for_____________________. A. Advanced Virtual RISC. B. Alf-Egil Bogen and Vegard Wollan RISC C. Both A & B D. None of the above

Last Answer : C. Both A & B 

______________ was developed in the year 1996 by ATMEL Corporation A. PIC B. AVR C. ARM D. ASIC

Description : ______________ was developed in the year 1996 by ATMEL Corporation A. PIC B. AVR C. ARM D. ASIC

Last Answer : B. AVR 

______________ is the smallest microcontrollers which can be programmed to perform a large range of tasks. A. PIC microcontrollers B. ARM microcontrollers C. AVR microcontrollers D. ASIC microcontrollers

Description : ______________ is the smallest microcontrollers which can be programmed to perform a large range of tasks. A. PIC microcontrollers B. ARM microcontrollers C. AVR microcontrollers D. ASIC microcontrollers

Last Answer : A. PIC microcontrollers 

Compare features of PIC and AVR microcontrollers

Description : Compare features of PIC and AVR microcontrollers

Last Answer : Parameters PIC AVR Bus width 8/16/32-bit 8/32-bit Communication Protocols UART, USART, LIN, CAN, Ethernet, SPI, I2C UART, USART, SPI, I2C, (special ... Average Atmel Popular Microcontrollers PIC18fXX8, PIC16f88X, PIC32MXX Atmega8, 16, 32, Arduino Community

What is a voltage regulator in Arduino?

Description : What is a voltage regulator in Arduino?

Last Answer : A voltage regulator in Arduino is an electronic component that regulates the voltage level of a circuit and ensures that it remains constant.

What is voltage voltage regulator IC ?

Description : What is voltage voltage regulator IC ?

Last Answer : : All the ICs that are used to regulate or control the voltage are called voltage regulator ICs. The function of the voltage regulator IC is to regulate the voltage. E.g. IC 7805.

Where is voltage regulator located on 1970 Chevelle?

Description : Where is voltage regulator located on 1970 Chevelle?

Last Answer : It is attached to the inside of the radiator support.

List the important characteristics of a voltage regulator.

Description : List the important characteristics of a voltage regulator.

Last Answer : The output voltage is fixed at a specified value, The unregulated voltage must be at least 2V more than the regulated voltage.

What is a linear voltage regulator?

Description : What is a linear voltage regulator?

Last Answer : Series or linear regulator uses a power transistor connected in series between the unregulated dc input and the load and it conducts in the linear region .The output voltage is controlled by the continous voltage drop taking place across the series pass transistor. 

What is a voltage regulator?

Description : What is a voltage regulator?

Last Answer : A voltage regulator is an electronic circuit that provides a stable dc voltage independent of the load current, temperature, and ac line voltage variations.

What Is Zener Diode? What Is Voltage Regulator?

Description : What Is Zener Diode? What Is Voltage Regulator?

Last Answer : The breakdown region of a p-n diode can be made very sharp and almost vertical diodes with almost vertical breakdown region are known a s zener diodes. A zener diode operating in the ... . Voltage regulator: The output remains constant despite changes in the input voltage due to zener effect.

What Is Zener Diode? What Is Voltage Regulator?

Description : What Is Zener Diode? What Is Voltage Regulator?

Last Answer : The breakdown region of a p-n diode can be made very sharp and almost vertical diodes with almost vertical breakdown region are known a s zener diodes. A zener diode operating in the ... . Voltage regulator: The output remains constant despite changes in the input voltage due to zener effect.

Hat Is Zener Diode? What Is Voltage Regulator?

Description : Hat Is Zener Diode? What Is Voltage Regulator?

Last Answer : The breakdown region of a p-n diode can be made very sharp and almost vertical diodes with almost vertical breakdown region are known a s zener diodes. A zener diode operating in the breakdown ... . It is this constant voltage that has made the zener diode an important device in voltage regulation.

What is Zener Diode ? What is a voltage Regulator ?

Description : What is Zener Diode ? What is a voltage Regulator ?

Last Answer : The breakdown region of a p n diode can be made very sharp and almost vertical Diodes with almost vertical breakdown region are known as Zever Diodes. A Zener diodes operating in the breakdown ... VOLTAGE REGULATOR : The output remains constant despite changes in input voltage due to Zever effect.  

A shunt-type voltage regulator is connected in serial/parallel (which one) with the load resistance.

Description : A shunt-type voltage regulator is connected in serial/parallel (which one) with the load resistance.

Last Answer : In parallel.