Electrical Engineering MCQs on Power Transmission Part 28
Contents
- 1 The inductance of transmission line will be small when
- 2 Line resistance and inductive reactance in a transmission line
- 3 ACSR conductor comprising of 70 aluminum conductors and 6 steel conductors is specified as
- 4 Which of following technique is not a static compensation technique
- 5 Wind load on overhead transmission line acts
The inductance of transmission line will be small when
The inductance of transmission line will be small when:
- GMR is high
- GMD is high
- Both GMD and GMR are high
- GMD is low but GMR is high
Correct answer: 4. GMD is low but GMR is high
Line resistance and inductive reactance in a transmission line
The correct relationship between line resistance (R) and inductive reactance XL in a transmission line are related by which of following relationship:
- XL = R
- XL < R
- XL > R
- None of these
Correct answer: 3. XL > R
ACSR conductor comprising of 70 aluminum conductors and 6 steel conductors is specified as
ACSR conductor comprising of 70 aluminum conductors and 6 steel conductors is specified as:
- 6/70
- 70/6
- 6/76
- 70/76
Correct answer: 2. 70/6
Which of following technique is not a static compensation technique
Which of following technique is not a static compensation technique
- Shunt capacitor bank
- VAR compensators
- Series compensation
- Synchronous condensers
Correct answer: 4. Synchronous condensers
Explanation: Synchronous condensers is not a static compensation technique. In this technique a synchronous motor in the no-load condition in an overexcited state is connected across the load in order to improve the power factor.
Wind load on overhead transmission line acts
Wind load on overhead transmission line acts:
- Horizontally
- Vertically upward
- Vertically downward
- None of these
Correct answer: 1. Horizontally