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## Download Previous year Diploma Question Paper of Electrical Power-II EP-2 6th Semester EEE May 2019 Diploma PSBTE Paper.

Electrical Power-II EP-2 6th Sem EEE May 2019 Diploma PSBTE Paper

`Electrical Power-2 EP-II 6TH SEM DIPLOMA PSBTE MAY 2019 PAPER      `

## SECTION A

#### 1. Fill in the blanks :

a. Arc is extinguished at _____current.
b. A relay is an Electromagnetic  switch.
c. MCB stands for  Mini or Miniature Circuit Breaker .
d. Ground wire is used to protect transmission line against  Lighting
e. HRC stands for High Rupturing Capacity
f. MHO relay is usually employed for the protection of Long lines Only.
g. The electrical power station located in Ropar is Guru Gobind Singh Super Thermal power station.
h. ELCB stands for Earth-Leakage Circuit Breaker .
i. Buchholz relay is used for the protection of Transformer.
j. The size of conductor decreases with the_______ line current.

## SECTION-B

#### Q2. Attempt any five questions.                                                                                              5×6=30

i. Calculate the total units consumed per year by a consumer if its maximum demand is 500kW and annual load factor is 70%
ii. What are the basic methods of arc extinction in air?
iii. What are the common types of generator faults?
iv. Discuss the properties of fuse element.
v. Explain the difference between Earth and Neutral wire.
vi. What are the advantages of SF6 circuit breaker?
vii. What is the purpose of power line carrier communication?
viii. Difference between a circuit breaker and a fuse.

## SECTION-C

#### Q3. Attempt any three questions.                                                                                     3×10=30

a. What is earthing? What is its purpose? Explain system earthing and equipment earthing.
b. What is power tariff? Give its various types.
c. What is the purpose of inserting a resistance between horn gap arrestor and line?
d. Describe construction and operation of H.R.C. cartridge fuse.
e. Explain unbalanced and single phasing protection.

## Electrical Power-II EP-2 6th Sem EEE may 2019 Diploma PSBTE Paper

### Section a FILL IN THE BLANKS Electrical Power-II MAY 2019 paper

Arc is extinguished at _____current.

A relay is an____ switch.

MCB stands for _____

Ground wire is used to protect transmission line against ___

HRC stands for _____

MHO relay is usually employed for the protection of____ lines.

The electrical power station located in Ropar is _____ power station.

ELCB stands for Earth Leakage Circuit Breaker.

Buchholz relay is used for the protection of _____

The size of conductor decreases with the_______ line current

Low

Three

### Section B :Electrical Power-II EP-2 6th Sem EEE May 2019 Diploma Paper

Total units consumed per year by a consumer if its maximum demand is 500kW and annual load factor is 70%

Basic methods of arc extinction in air

Common types of generator faults

Properties of fuse element.

Difference between Earth and Neutral wire.

Purpose of power line carrier communication

Difference between a circuit breaker and a fuse

## Electrical Power-II EP-2 6th Sem EEE MAY 2019 Diploma PSBTE Paper

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### Section c:- Electrical Power-II EP-2 6th Sem EEE MAY 2019 Diploma Paper

Earthing and its purpose

Explain system earthing and equipment earthing.

Power tariff  its various types.

Purpose of inserting a resistance between horn gap arrestor and line

Construction and operation of H.R.C. cartridge Fuse.

Unbalanced and single phasing protection