Sub Name: Electrical Drive / Faculty Name:Dr. M K Kumawat / Sem: 7th

ASSIGNMENT-1

Q1. What are the advantages of Electrical Drive?

Q2. State essential parts of Electrical Drive?

Q3. Write a brief note on the motors employed in variable speed Drive?

Q4. Write a brief note on the Sources employed in Electrical Drive?

Q5. What are the main factors which decide the choice of Electrical Drive for a given application?

Q.6 Derive the expression for Moment of inertia (J) and Load Torque (TL) when load in Rotational Motion?

Sub Name: Power Apparatus System / Faculty Name:M Biswal / Sem: 7th

ASSIGNMENT-1

Q1. An Overhead transmission line at river crossing is supported from two tower at height of 40 m and 90 m above water level ,the horizontal distance between the tower being 400 m. If the maximum allowable tension is 2000 kg ,Find the clearance between the conductor and water at a point mid way between towers. Weight of conductor is 1 kg/m.

Q2. Each line of three phase system is suspended by a string of 3 identical insulators of self capacitance C farads, The shunt capacitance of metal work of each insulator is 0.26 C to earth and 0.15 C to line .Find string efficiency.

Q.3 Explain different types of Overhead line Insulator.

Q.4 Derive voltage distribution equation for 3 number of suspension insulator in a string

Sub Name: Energy Auditing
& Management / Faculty Name: Prashant Bawaney / Sem: 7th

ASSIGNMENT-1

Q1. What are the different types of energy sources? Write there limitation also.

Q2. Discuss the importance of energy forecasting.

Q3. Write short note on load forecasting

Q4. Explain the importance of energy management.

Q5. Explain the roll of power factor in energy saving.

Sub Name: Switchgear & Protection / Faculty Name: Mr. B. Sridhar / Sem: VII

ASSIGNMENT-1

Q1. What is Impedance relay? Show its Characteristics on R-X diagram. Give the Characteristics of three zone impedance relays with directional unit.

Q2. From generalized torque expression locally design Mho relay. What are the properties of Mho relay as compared to reactance relay.

Q3. Explain Induction type Non directional over-current relay.

Q4. Explain Induction type directional over-current relays and earth fault relays.

Q5. The time-Current (PSM) characteristic of an over current relay for TMS of 1 is given

PSM / 2 / 3 / 5 / 7 / 10 / 13 / 15 / 18 / 20
Operating time in second / 10 / 6.8 / 4.4 / 3.4 / 2.8 / 2.5 / 2.4 / 2.3 / 2.2

If the current Plug setting is adjusted to 50 % and Time multiplier is adjusted to 0.75, calculate the time of operation of the relay when Fault current 3000 amp. and the relay is connected to a CT ratio 400/5 .

Sub Name: MCS / Faculty Name: SALIK RAM DEWANGAN / Sem: 7th

ASSIGNMENT-1

Unit 1

1. Explain limit cycle.

2. What is nonlinear system? State the different type of non-linearities present in the systems.

3.Obtain the describing function for non- linearity shown in fig1 and 2

Unit2

4.Block diagram representation of a linear time invariant system is given in figure 3. Check whether the system is completely observable and controllable.

5.consider the system given by Y(s)/u(s) = (s+3)/(s2+3s+2)

Obtain state space representation in controllable canonical form and observable canonical form.

6. check observability and controllability of system shown in fig where f1=u and f2=2u.


7.Determine wheher system is completely state controllable & observable.

8. Consider the matrix A as Compute by the use of three different methods.

9.Explain CCF.

10.Explain OCF.