a variable frequency drive should not be used for: 1. speed control 2. soft starts 3....
a variable frequency drive should not be used for:
1. speed control
2. soft starts
3. lockout/tagout
4. all of above
Homework Answers
Request Answer!
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
Add Answer to:
a variable frequency drive should not be used for:
1. speed control
2. soft starts
3....
a variable frequency drive can be used on the following industrial devices: a- AC motor b-...
a variable frequency drive can be used on the following industrial devices: a- AC motor b- DC motor c- DC Servo Motor d- All of the above
A 3 phase squirrel cage induction motor is connected to a variable speed drive. The motor...
A 3 phase squirrel cage induction motor is connected to a variable speed drive. The motor should be rated for : A. dc duty B. Brushless operation C. Design E D. Inverter duty
this is a management systems control subject 4. (3 pts) A soft drink manufacturer currently makes...
this is a management systems control subject
4. (3 pts) A soft drink manufacturer currently makes the aluminum cans for its beverages. It has the following costs for making 2,000,000 cans: Direct Material Direct Labor Variable Factory Overhead Fixed Factory Overhead Total $170K $50K $100K $150K $470K or $.235/can An aluminum manufacturing company that specializes in the manufacture of soft drink and beer cans has offered to sell cans al S.18/can. Should the soft drink company make or buy its...
8) A three-phase thyristor controlled converter is used to drive a motor system. What is the...
8) A three-phase thyristor controlled converter is used to drive a motor system. What is the required trigger delay angle a if the required average output DC voltage is 0.5Vm [2 points) a) 90 degrees. b) 45 degrees. c) 58.43 degrees. d) O degrees. 9) A 3-point motor starter arrangement is shown in the diagram below (1 point). Starting Resistence No volt col OFF Soft ron piece Starter handie Spring Over load release Lever Trangular iron Three Point Starter As...
UNIT TEST 1. Which of the following statements is a characteristic of a control transformer? a....
UNIT TEST 1. Which of the following statements is a characteristic of a control transformer? a. b. Permits switching off the load Prevents motor overload c. d. Provides control voltage compatible with relay coils Enables motor phase reversal 2. Which contactor utilization category permits plugging operation? a. AC-1 b. AC-2 с, АС-3 d. AC-4 3. What happens as power returns, in a three-wire motor circuit, following a pow failure? a. The motor restarts automatically b. The motor remains de-energized. c....
2. We wish to control the speed of the tumbler in a clothes dryer. To do...
2. We wish to control the speed of the tumbler in a clothes dryer. To do this we must first find the transfer of the open loop system. A permanent magnet DC motor (armature controlled) is used to drive the tumbler. A power amplifier is used to drive the motor. A voltage proportional to the desired speed of the tumbler is applied at the amplifier input. a. Identify the inputs and outputs of this system. b. Identify the components. c....
1. How is wave speed related to frequency and wavelength? 2. Does the frequency of a...
1. How is wave speed related to frequency and wavelength? 2. Does the frequency of a wave depend on the properties of the medium? 3. What happens to wavelength when speed is decreased? 4. What are two ways to decrease the speed of the wave (you can change the medium here, but how)?
1. A typical motor speed control circuit that is controlled by an analog current loop will...
1. A typical motor speed control circuit that is controlled by an analog current loop will have a current of A. 2-20 mA B. 5-50 mA C. 0-10 mA D. 4-20 mA. 2. What is the purpose of thermostat number 2, IN7, in the mixing vat machine? A. This thermostat is used to prevent an over-temperature condition in the event thermostat one sticks open. B. This thermostat is used to shut off the heater when the chemical mix reaches setpoint...
3. ADC motor is used to drive a load as shown below. The torque-speed characteristics is also sho...
3. ADC motor is used to drive a load as shown below. The torque-speed characteristics is also shown for e-5 V 1) Find the motor parameters Kf and Kb. 2) Find the transfer function H(s) 02(5)/E, (s). Find the poles of the system. edt)| Motor -Up: 1 kg-m- Λ= 1 kg-m- N2-20 M=10 2 kg-m? (f) D-: 32 N-m-s., rad N4 20 16 kg-m) T(N-m) RPM 600
3. ADC motor is used to drive a load as shown below. The...
6) The open loop transfer function of a control system is 10-011. Ata frequency of 1...
6) The open loop transfer function of a control system is 10-011. Ata frequency of 1 Hz, the system phase shift is: (1) 0.9 kg (2) 5.7" tag (3) 18 (6) 36"lag (5) none of the above h) The open-loop transfer function of control system is 10 At high frequencies, the gain will: (1) be constant (2) roll off at -20 d/decade (3) roll off at -40 dB/decade (6) roll off at 60 dB/decade The open-loop transfer function of a...
this is a management systems control subject
4. (3 pts) A soft drink manufacturer currently makes the aluminum cans for its beverages. It has the following costs for making 2,000,000 cans: Direct Material Direct Labor Variable Factory Overhead Fixed Factory Overhead Total $170K $50K $100K $150K $470K or $.235/can An aluminum manufacturing company that specializes in the manufacture of soft drink and beer cans has offered to sell cans al S.18/can. Should the soft drink company make or buy its...
8) A three-phase thyristor controlled converter is used to drive a motor system. What is the required trigger delay angle a if the required average output DC voltage is 0.5Vm [2 points) a) 90 degrees. b) 45 degrees. c) 58.43 degrees. d) O degrees. 9) A 3-point motor starter arrangement is shown in the diagram below (1 point). Starting Resistence No volt col OFF Soft ron piece Starter handie Spring Over load release Lever Trangular iron Three Point Starter As...
UNIT TEST 1. Which of the following statements is a characteristic of a control transformer? a. b. Permits switching off the load Prevents motor overload c. d. Provides control voltage compatible with relay coils Enables motor phase reversal 2. Which contactor utilization category permits plugging operation? a. AC-1 b. AC-2 с, АС-3 d. AC-4 3. What happens as power returns, in a three-wire motor circuit, following a pow failure? a. The motor restarts automatically b. The motor remains de-energized. c....
2. We wish to control the speed of the tumbler in a clothes dryer. To do this we must first find the transfer of the open loop system. A permanent magnet DC motor (armature controlled) is used to drive the tumbler. A power amplifier is used to drive the motor. A voltage proportional to the desired speed of the tumbler is applied at the amplifier input. a. Identify the inputs and outputs of this system. b. Identify the components. c....
1. A typical motor speed control circuit that is controlled by an analog current loop will have a current of A. 2-20 mA B. 5-50 mA C. 0-10 mA D. 4-20 mA. 2. What is the purpose of thermostat number 2, IN7, in the mixing vat machine? A. This thermostat is used to prevent an over-temperature condition in the event thermostat one sticks open. B. This thermostat is used to shut off the heater when the chemical mix reaches setpoint...
3. ADC motor is used to drive a load as shown below. The torque-speed characteristics is also shown for e-5 V 1) Find the motor parameters Kf and Kb. 2) Find the transfer function H(s) 02(5)/E, (s). Find the poles of the system. edt)| Motor -Up: 1 kg-m- Λ= 1 kg-m- N2-20 M=10 2 kg-m? (f) D-: 32 N-m-s., rad N4 20 16 kg-m) T(N-m) RPM 600
3. ADC motor is used to drive a load as shown below. The...
6) The open loop transfer function of a control system is 10-011. Ata frequency of 1 Hz, the system phase shift is: (1) 0.9 kg (2) 5.7" tag (3) 18 (6) 36"lag (5) none of the above h) The open-loop transfer function of control system is 10 At high frequencies, the gain will: (1) be constant (2) roll off at -20 d/decade (3) roll off at -40 dB/decade (6) roll off at 60 dB/decade The open-loop transfer function of a...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago