Draw a relay construction diagram
Course:- Electrical Engineering
Reference No.:- EM13492

Assignment Help
Expertsmind Rated 4.9 / 5 based on 47215 reviews.
Review Site
Assignment Help >> Electrical Engineering

1. Draw a relay construction diagram and briefly explain the operation of a relay.

2. Define the terms normally open and normally closed.

3. Define the terms Set and Reset for relays.

4. Draw a latching circuit and interlocking circuit and briefly explain the operation of those two circuits.

5. Draw an electrical relay diagram rung showing a N/O contact of CR1(coil) in series witha N/C contact of CR2(Coil), operating a lamp L1.

6. A delay-on (TON) relay has a preset of 5.0 seconds. Explain how it reacts If if the coil terminals areenergized for

a) 8 seconds how long will its contacts be actuated.

b) 3 seconds

explain how it reacts

6.7. a. Explain the operation of basic motor STOP/START circuit shown below.

1026_Roller Door Project.png

Figure: Relay Ladder Diagram for Basic STOP/START Circuit

7.8. b. The above figure below shows an OP OR gate combined with an AND gate to duplicate the logic of a ladder diagram that contains a start button, holding contacts, stop button and motor starter. 

a) State the equivalents in the ladder diagram above(figure in Question 7), for A, B and C below

a) b) Compare the logic of the ladder diagram with the logic gate equivalent circuit and

b) c) Complete the truth table below.

1230_Roller Door Project1.png

Figure: Combining an OP OR gate and an AND gate

Truth Table
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1

Put your comment

Ask Question & Get Answers from Experts
Browse some more (Electrical Engineering) Materials
Steam enters an adiabatic nozzle at 3.5Mpa and 300C with a low velocity and leaves at 1.6Mpa and 250C at a rate of 0.4kg/s. If the surrounding is 10 at 100Kpa and 18C, find
Find the characteristics equation and the corresponding roots for the following ODEs and identify its case a) y" + 6Y' + 9y=0 b) 10y" + 18y' +5.6y=0 c) 10y" + 50y' + 65y =0 Sl
[Hint: As you should explain, this is equivalent to showing that the sum of two forward light-like vectors is forward time-like, unless the spatial parts are parallel.]
A unipolar 16 bit ADC measures 0-10 volts full scale. a) What is the minimum resolvable voltage b) What is the percent quantization error c) What is the percent quantization
What is the common-mode rejection ratio (in dB) if the output voltage is measured to be 2.0 Vp-p when the input terminals are connected together and a 0.1 Vp-p voltage is ap
It is desired to run the motor in the previous problem with a power factor of unity. To achieve this, a capacitor C is connected in parallel across the motor, which results
Compact linear actuators are required to compensate for vibration induced by the motion of a robot arm. The dynamic performance of the actuators is very important to ensure
A 120-V source is to be connected to a load by two copper wires. The load is located 500 feet from the source. The maximum voltage drop due to the wire resistance is 10 V, w