Size of this preview: 450 × 600 pixels. Other resolutions: 180 × 240 pixels | 360 × 480 pixels | 576 × 768 pixels | 768 × 1,024 pixels.
Full resolution (1,944 × 2,592 pixels, file size: 468 KB,
Line Insulator and
their Specifications
Transmission and distribution system leak overhead line of the by chance current can not flow, so that the line from the Earth, the Insulator is used for the line. Insulator important role in system operation.
Electricity Production and Distribution of the angular spread of the line biscuit, location, sag, span, etc., depending on the line of tension Insulator is used.
Insulator types:
A. Pin Insulator
B. Suspension Insulator
C. Strain Insulator
D. Shackle Insulator
E. Post Insulator
I. Egg or Guy Insulator
Insulator factors:
- Porcelain soil
- Glass
- Steatite
- Pyrex
Insulator material is better than the best in Porcelain soil. It is di-electric strength
Transmission and distribution system leak overhead line of the by chance current can not flow, so that the line from the Earth, the Insulator is used for the line. Insulator important role in system operation.
Electricity Production and Distribution of the angular spread of the line biscuit, location, sag, span, etc., depending on the line of tension Insulator is used.
Insulator types:
A. Pin Insulator
B. Suspension Insulator
C. Strain Insulator
D. Shackle Insulator
E. Post Insulator
I. Egg or Guy Insulator
Insulator factors:
- Porcelain soil
- Glass
- Steatite
- Pyrex
Insulator material is better than the best in Porcelain soil. It is di-electric strength
60 Kv /cm and the
compressive & tensile strength 7000kg/cm² -
500kg/cm².
Properties of insulator materials:-
1. Cable should be strong enough to pull and weight labara.
2. High to provide the di-electric strength must be greater than the Relative permittivity.
3.Current flow may leak into the Earth, so it requires much more insulation resistance.
4.Flash over voltage, puncture voltage and high voltage ratio will be.
5. Insulator materials smooth, compact and flexible temperature must be uninfluenced.
6.Insulator must be authentic and have a good internal cresses.
7. It should be solid and impermeable, so that no one can enter inside the gas or fluid.
Use of different types of insulator:-
•. Pin Type Insulator: - It is usually LT Tangent line of the poll and the poll is a complete point angle. Distribution and transport of 33Kv.
•. Suspension Type Insulator: - usually 33Kv - to 230Kv, or it is used on a tangent Tower.
•. Shackle Type Insulator: - LT 400/30 V line to the terminal, and the more relevant point angular poll section is used.
•. Strain type Insulator: - All the high pressure line, terminal, and the angular section is used to poll or Tower. The river crossing, railway crossing, the highway crossing, the drag of the Insulator is used.
•.Post Type Insulator: - It is much like a pin insulator. This Insulator create a massy shell. The outdoor sub-station HT Insulator Busber used.
•. Egg or Guy Insulator: - Porcelain soil and the Insulator used this type of overhead lines. Line of the guy or the Sten - Sten was used so that when the cables were pulled poll is added over the ground so suddenly that the current leakage him may not come.
Insulator to test various methods of description: -
Insulator accuracy, consistency, and efficiency to be aware that test is run, the Test of Insulator. Three of the test. Namely: -
2. High to provide the di-electric strength must be greater than the Relative permittivity.
3.Current flow may leak into the Earth, so it requires much more insulation resistance.
4.Flash over voltage, puncture voltage and high voltage ratio will be.
5. Insulator materials smooth, compact and flexible temperature must be uninfluenced.
6.Insulator must be authentic and have a good internal cresses.
7. It should be solid and impermeable, so that no one can enter inside the gas or fluid.
Use of different types of insulator:-
•. Pin Type Insulator: - It is usually LT Tangent line of the poll and the poll is a complete point angle. Distribution and transport of 33Kv.
•. Suspension Type Insulator: - usually 33Kv - to 230Kv, or it is used on a tangent Tower.
•. Shackle Type Insulator: - LT 400/30 V line to the terminal, and the more relevant point angular poll section is used.
•. Strain type Insulator: - All the high pressure line, terminal, and the angular section is used to poll or Tower. The river crossing, railway crossing, the highway crossing, the drag of the Insulator is used.
•.Post Type Insulator: - It is much like a pin insulator. This Insulator create a massy shell. The outdoor sub-station HT Insulator Busber used.
•. Egg or Guy Insulator: - Porcelain soil and the Insulator used this type of overhead lines. Line of the guy or the Sten - Sten was used so that when the cables were pulled poll is added over the ground so suddenly that the current leakage him may not come.
Insulator to test various methods of description: -
Insulator accuracy, consistency, and efficiency to be aware that test is run, the Test of Insulator. Three of the test. Namely: -
1. Flash-over
Tests
i. 50-Cycle dry flash-over test.
ii. 50-Cycle wet test for 30 Seconds.
iii. 50-Cycle flash-over test.
iv. Impulse frequency flash-over test.
2. Sample Tests
or Performance Test:
i. Temperature Cycle test.
ii. Mechanical test (for Pin type insulator).
iii. Electromechanical test(for Suspension insulator)
iv. Puncture test.
v. Porosity test..
3. Routine
test.
i. Proof load test.
ii. Corrosion test.
iii. High Voltage test.
কোন মন্তব্য নেই:
একটি মন্তব্য পোস্ট করুন