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11kV Polymeric Air Break Switch

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11kV Polymeric Air Break Switch Specification

Response Time
Instantaneous (manual operation)

Temperature Range
-20C to +60C

Protection Level
IP54

Number of Module
Single

Mechanical Life
> 5000 operations

Rated Voltage
11kV

Automation Grade
Manual

Finish Type
Hot Dip Galvanized

Circuit Type
Outdoor Distribution Line Switch

Max. Current
630A

Product Type
Polymeric Air Break Switch

Material
Epoxy/Polymeric Insulator, Galvanized Iron Parts

Insulation Resistance
>1000 M at 500V DC

Contact Resistance
< 100 micro ohm

Max. Voltage
12kV

Operating Temperature
-20C to +60C

Stoke
Manual/Lever Operated

Size
Standard as per IS/IEC specifications

Color
Grey/Red (as per insulator material)

Weight
Approx. 18-22 kg (per unit)

Mounting Type
Pole Mounted

Current Rating
630A / 800A

No Of Poles
3

Application
Outdoor overhead distribution lines

Dielectric Strength
28kV (ac) for 1 min

Operating Mechanism
Manual with provision for lock

Interlocking
Padlocking facility for safety

Ambient Humidity
Up to 100%

Terminal Connector
Suitable for ACSR/AAAC conductors

Break Type
Single/Both side break

Standards
IS 9921/IEC 62271-103

UV Resistance
Yes

Design
Horizontal/Vertical Mounting

Insulator Type
Silicone/Polymer Composite

Corrosion Resistance
Yes

Rated Short Time Current
16kA for 3 sec

Environmental Category
Outdoor

Operating Handle
Galvanized with rubber grip

Creepage Distance
> 320mm (per phase)

About 11kV Polymeric Air Break Switch

11kv200 Amps Polymeric Air Break Switch (With Handle, Lever & Connecting Rod)

Specification:-

Normal System Voltage-11kv
Highest System Voltage - 12kv
System Frequency - 50Hz
Rated Current - 200A
Power Frequency Withstand Voltage Across The Isolating Distance (Min.) --- 32kv(Rms)
Power Frequency Withstand Voltage To Earth (Min.) --- 28kv(Rms)
Lightning Impulse Voltage Withstand Test Across Isolating Distance (Min.)--- 85kvp
Lightning Impulse Voltage Withstand Test Across Phase To Earth (Min.) --- 75kvp

Rugged Outdoor Performance

This Air Break Switch excels in demanding outdoor environments, with a UV and corrosion-resistant body and a reliable silicone/polymer composite insulator. The product is specifically designed for pole mounting on overhead distribution lines, easily withstanding rapid temperature fluctuations and high humidity up to 100%.

Safety-Driven Design

User safety takes precedence with a manual operating mechanism that includes both mechanical and padlocking provisions. Interlocking features and secure handling grips help prevent accidental re-closure or operation, ensuring safe maintenance and operation on energized lines.

Adherence to Standards

Engineered in compliance with IS 9921 and IEC 62271-103 standards, this switch maintains high insulation resistance and dielectric strength. Its hot-dip galvanized parts, robust connectors for ACSR/AAAC conductors, and meticulous finish assure long-term reliability and industry-approved safety.

FAQ's of 11kV Polymeric Air Break Switch:

Q: How is the 11kV Polymeric Air Break Switch operated and secured?

A: The switch is manually operated using a galvanized handle with a rubber grip, providing robust tactile control. For added security, a padlocking provision enables locking the mechanism in either open or closed positions, minimizing unauthorized access and enhancing safety during maintenance.

Q: What types of distribution lines is this switch suited for?

A: It is intended for outdoor overhead distribution lines, making it suitable for pole-mounted installations in electrical networks. The design accommodates both single and dual side break, offering flexibility for various electrical configurations.

Q: When should the Air Break Switch be used in power distribution systems?

A: This switch is used for isolating segments of outdoor overhead power lines during maintenance, fault handling, or load management. It allows for safe disconnection and reconnection without interrupting the entire network, thus supporting operational efficiency.

Q: Where should the switch be installed for optimal performance?

A: For best results, the switch should be mounted on poles in outdoor settings, as specified in its design. Both horizontal and vertical mounting options provide installation flexibility to cater to site requirements while ensuring safe clearance and accessibility.

Q: What is the process for locking and unlocking the operating mechanism?

A: The manual operating handle is fitted with a padlocking facility, allowing service personnel to securely lock it in the desired position. Unlocking requires authorized access, following standard operating protocols to maintain safety and system integrity.

Q: How does the switch benefit power system operators?

A: Operators benefit from high mechanical reliability (over 5000 operations), robust insulation (greater than 1000 M at 500V DC), and fast manual response. The durable, weatherproof design improves uptime and reduces maintenance cycles in challenging Indian climate conditions.

Q: What materials and protective features ensure the switch's durability?

A: Constructed from silicone/polymer composite insulators and epoxy, with hot-dip galvanized iron parts, the switch resists both UV exposure and corrosion. Its IP54 protection rating and tough finish contribute to a long service life, even under extreme ambient conditions.

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