What is the difference between a torque synchro and a control synchro?

What is the difference between a torque synchro and a  control synchro?
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1 Answer

Answer :

A torque synchro is used for light loads and a control synchro is  used in systems desired to move heavy loads.
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Related questions

What type of indicator is usually placed in the stator circuit of a torque synchro system?

Description : What type of indicator is usually placed in the stator circuit of a torque synchro system?

Last Answer : An overload indicator.

What unit of measurement refers to the torque of a synchro transmitter

Description : What unit of measurement refers to the torque of a synchro transmitter

Last Answer : Ounce-inches.

In a control synchro system, when is the output of the CT reduced to zero?

Description : In a control synchro system, when is the output of the CT reduced to zero?

Last Answer : When the CX and CT rotors are in correspondence.

What is the physical difference between a synchro transmitter and a synchro receiver?

Description : What is the physical difference between a synchro transmitter and a synchro receiver?

Last Answer : A synchro receiver uses some form of damping to retard excessive oscillations or spinning.

What is the reference point for alignment of all synchro units?

Description : What is the reference point for alignment of all synchro units?

Last Answer : The voltmeter method.

. What type of synchro system is used to transmit very large quantities?

Description : . What type of synchro system is used to transmit very large quantities?

Last Answer : A tri-speed synchro system.

In a dual-speed synchro system what determines the two specific speeds at which the data will be transmitted?

Description : In a dual-speed synchro system what determines the two specific speeds at which the data will be transmitted?

Last Answer : The gear ratio between the two transmitters.

What precaution should you take when substituting a synchro tester in a circuit for a transmitter?

Description : What precaution should you take when substituting a synchro tester in a circuit for a transmitter?

Last Answer : Use only one receiver so as not to overload the tester.

What is the most probable cause of trouble in a synchro system that has all of its receivers reading incorrectly?

Description : What is the most probable cause of trouble in a synchro system that has all of its receivers reading incorrectly?

Last Answer : The transmitter or main bus.

Name two types of trouble you would expect to find in a newly installed synchro system.

Description : Name two types of trouble you would expect to find in a newly installed synchro system.

Last Answer : Improper wiring and misalignment.

What should you do with a synchro that has a bad set of bearings?

Description : What should you do with a synchro that has a bad set of bearings?

Last Answer : Replace it.

When you zero a synchro with a synchro tester, what is indicated by a jump in the synchro tester's dial when the S1 and S3 leads are momentarily shorted?

Description : When you zero a synchro with a synchro tester, what is indicated by a jump in the synchro tester's dial when the S1 and S3 leads are momentarily shorted?

Last Answer : The synchro under test is not on electrical zero.

What method of zeroing a synchro is perhaps the fastest but NOT necessarily the most accurate?

Description : What method of zeroing a synchro is perhaps the fastest but NOT necessarily the most accurate?

Last Answer : . The electrical lock method.

When you zero a multispeed synchro system which synchro should you zero first?

Description : When you zero a multispeed synchro system which synchro should you zero first?

Last Answer : The coarse synchro.

Why should a synchro be rechecked for zero after it is clamped down?

Description : Why should a synchro be rechecked for zero after it is clamped down?

Last Answer : To ensure that it did not move off zero while it was being clamped.

When is a synchro receiver (TR) properly zeroed?

Description : When is a synchro receiver (TR) properly zeroed?

Last Answer : A TR is zeroed when electrical zero voltages exist across its stator windings at the same time its rotor is on zero or on its mechanical reference position.

What is the purpose of the coarse setting of a synchro?

Description : What is the purpose of the coarse setting of a synchro?

Last Answer : .It ensures the synchro is on 0º, not 180º.

What is the main reason for using a multispeed synchro system instead of a single-speed synchro system?

Description : What is the main reason for using a multispeed synchro system instead of a single-speed synchro system?

Last Answer : Greater accuracy without the loss of self-synchronous operation.

What is the name given to the synchro system that transmits data at two different speeds?

Description : What is the name given to the synchro system that transmits data at two different speeds?

Last Answer : . A dual or double-speed synchro system.

Why are synchro capacitors placed physically close to differentials transmitters and CTs?

Description : Why are synchro capacitors placed physically close to differentials transmitters and CTs?

Last Answer : To keep the connections as short as possible in order to maintain system.

How are synchro capacitors connected in a circuit?

Description : How are synchro capacitors connected in a circuit?

Last Answer : They are delta-connected across the stator windings.

What type of current is eliminated by synchro capacitors?

Description : What type of current is eliminated by synchro capacitors?

Last Answer : Magnetizing current.

What type of synchros usually require the use of synchro capacitors?

Description : What type of synchros usually require the use of synchro capacitors?

Last Answer : TDXs, CDXs, and Cts.

What is the purpose of the synchro capacitor?

Description : What is the purpose of the synchro capacitor?

Last Answer : To improve overall synchro system accuracy by reducing stator currents.

What type of synchro is used in systems requiring large amounts of power and a high degree of accuracy?

Description : What type of synchro is used in systems requiring large amounts of power and a high degree of accuracy?

Last Answer : A control synchro.

What determines whether a differential synchro adds or subtracts?

Description : What determines whether a differential synchro adds or subtracts?

Last Answer : The way the differential synchro is connected in a system is the deciding factor on whether the unit adds or subtracts its inputs.

What leads in a simple synchro system are connected to the ac power line?

Description : What leads in a simple synchro system are connected to the ac power line?

Last Answer : The rotor leads.

What two components make up a simple synchro transmission system?

Description : What two components make up a simple synchro transmission system?

Last Answer : A synchro transmitter and a synchro receiver.

What method is used to prevent oscillations in large synchro units?

Description : What method is used to prevent oscillations in large synchro units?

Last Answer : Mechanical damping.

Describe the zero-position of a synchro transmitter.

Description : Describe the zero-position of a synchro transmitter.

Last Answer : The transmitter is in its zero-position when the rotor is aligned with the S2 stator winding.

When will a synchro generate more heat than it is designed to handle?

Description : When will a synchro generate more heat than it is designed to handle?

Last Answer : Synchros have one primary winding that can be turned through 360º and three secondary windings spaced 120º apart.

In a TDX system with standard synchro connections, the TX rotor is at 120º and the TDX rotor is at 40º. What position will the TR indicate?

Description : In a TDX system with standard synchro connections, the TX rotor is at 120º and the TDX rotor is at 40º. What position will the TR indicate?

Last Answer : . 80º.

What are the two major components of a synchro?

Description : What are the two major components of a synchro?

Last Answer : The rotor and the stator.

On the synchro schematic symbol, what indicates the angular displacement of the rotor?

Description : On the synchro schematic symbol, what indicates the angular displacement of the rotor?

Last Answer : . The position of the arrow.

Which of the two synchro designation codes is indicated by 5DG on a synchro nameplate?

Description : Which of the two synchro designation codes is indicated by 5DG on a synchro nameplate?

Last Answer : The Navy prestandard designation code.

What does the code 26V-11TX4D mean on a synchro nameplate?

Description : What does the code 26V-11TX4D mean on a synchro nameplate?

Last Answer : It is the third modification of a 26-volt 400-hertz (torque) synchro transmitter whose body diameter is between 1.01 and 1.10 inches

Name the two general classifications of synchro systems

Description : Name the two general classifications of synchro systems

Last Answer : Torque and control.

What is the primary purpose of a synchro system?

Description : What is the primary purpose of a synchro system?

Last Answer : Precise and rapid transmission of data between equipment and stations.

Define the term "torque."

Description : Define the term "torque."

Last Answer : A measure of how much load a machine can turn.

Figure 'A' of the diagram shown in the illustration represents a ______________. EL-0092 A. differential transformer B. saturable reactor C. synchro system D. magnetic amplifier

Description : Figure 'A' of the diagram shown in the illustration represents a ______________. EL-0092 A. differential transformer B. saturable reactor C. synchro system D. magnetic amplifier

Last Answer : Answer: C

A synchro has (A) a 3-phase winding on rotor and a single-phase winding on stator. (B) a 3-phase winding on stator and a commutator winding on rotor. (C) a 3-phase winding on stator and a single-phase winding on rotor. (D) a single-phase winding on stator and a commutator winding on rotor.

Description : A synchro has (A) a 3-phase winding on rotor and a single-phase winding on stator. (B) a 3-phase winding on stator and a commutator winding on rotor. (C) a 3-phase winding on stator and a single-phase winding on rotor. (D) a single-phase winding on stator and a commutator winding on rotor.

Last Answer : Ans: C Synchros : The basic synchro unit called a synchro transmitter. It’s construction similar to that of a Three phase alternator.

The rotor of a synchro transmitter: -

Description : The rotor of a synchro transmitter: -  a) uses a salient pole type of construction b) uses a cylindrical pole type of construction c) may use either salient pole or cylindrical type of construction d) none of the above

Last Answer : The rotor of a synchro transmitter: - uses a salient pole type of construction

A synchro has a: ....

Description : A synchro has a:  (A) 3-phase winding on the rotor and a single-phase winding on the stator  (B) 3-phase winding on the stator and a commutator winding on the rotor  (C) 3-phase ... single-phase winding on the rotor  (D) single-phase winding on the stator and a commutator winding on the rotor

Last Answer : A synchro has a: 3 -phase winding on the stator and a single-phase winding on the rotor 

The function of the autotransformers used with the starters of large AC motors is to provide _____________. A. increased voltage for starting B. increased torque for starting C. reduced voltage for starting D. speed control

Description : The function of the autotransformers used with the starters of large AC motors is to provide _____________. A. increased voltage for starting B. increased torque for starting C. reduced voltage for starting D. speed control

Last Answer : Answer: C

Electric propulsion coupling excitation is reduced at slow speeds to ___________. A. increase speed control B. increase shaft torque C. prevent coupling overheating D. prevent coupling slippage

Description : Electric propulsion coupling excitation is reduced at slow speeds to ___________. A. increase speed control B. increase shaft torque C. prevent coupling overheating D. prevent coupling slippage

Last Answer : Answer: C

Which of the following is not recommended by ASME B31.3 when assembling gray cast iron flanges? a) Use high strength bolting at all times. b) Carefully align the flanges. c) Carefully control bolt torque. d) Ensure piping loads transmitted to the flanges are within design conditions.

Description : Which of the following is not recommended by ASME B31.3 when assembling gray cast iron flanges? a) Use high strength bolting at all times. b) Carefully align the flanges. c) Carefully control bolt torque. d) Ensure piping loads transmitted to the flanges are within design conditions.

Last Answer : a) Use high strength bolting at all times.

Describe spring control method of producing controlling torque in measuring instrument. Write any two properties required for spring material.

Description : Describe spring control method of producing controlling torque in measuring instrument. Write any two properties required for spring material.

Last Answer : A)Spring control method: As shown in the figure, the inner ends of the both springs are attahced to the spindle, while outer end of upper spring is attached to the lever and outer ... of spring material: 1.Non Magnetic material 2.Low specific resistance 3.Low temperature coefficient of resistance

The meter which does not have any component in it to provide control torque is

Description : The meter which does not have any component in it to provide control torque is (A) Electrodynamometer for current measurement (B) Electrodynamometer for voltage measurement (C) Electrodynamometer for power measurement. (D) Electrodynamometer for power factor measurement.

Last Answer : The meter which does not have any component in it to provide control torque is Electrodynamometer for power factor measurement.

For constant torque drive which speed control method is preferred ?

Last Answer : For constant torque drive armature voltage control speed control method is preferred.