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33kV Polymeric Air Break Switch

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33kV Polymeric Air Break Switch Specification

Rated Voltage
33 kV

Temperature Range
-10C to +55C

Finish Type
Hot-dip galvanized

Circuit Type
Outdoor, Three Phase

Response Time
Instantaneous mechanical operation

Number of Module
Single module, triple pole

Max. Current
800A or 1250A (as per application)

Automation Grade
Manual or Motorized

Mechanical Life
>2000 operations

Protection Level
IP55

Product Type
Polymeric Air Break Switch

Material
High quality polymeric insulator, galvanized steel, copper contacts

Insulation Resistance
>1000 M at 2.5kV DC

Contact Resistance
< 60

Max. Voltage
36 kV

Operating Temperature
-10C to +55C

Stoke
Manual/ Motorized

Size
Standard for 33kV outdoor line mounting

Color
Grey

Weight
Approx. 30-45 kg (Depending on configuration)

Mounting Type
Pole Mounted

Current Rating
800A / 1250A

No Of Poles
3 Pole

Operation
Horizontal / vertical mounting options

Creepage Distance
900 mm minimum

Auxiliary Switch Provision
Available on request

Interlocking Mechanism
Provided for safety during operation

Earthing Terminal
Provided for operator safety

Wind Load Withstand
Up to 150 km/h

Arcing Horn
Included for arc extinction

Operating Mechanism
Manual handle or motor actuator

Terminal Connector
Bimetallic clamp for ACSR conductor

About 33kV Polymeric Air Break Switch

33kv 400 Amps Polymeric Air Break Switch (With Handle, Lever & Connecting Rod)

Specification:-

Rated Voltage: 33kV.
Current Rating: Commonly 400A, but higher amperages like 630A or 800A are also available.
Insulator Material: Polymer (Polymeric).
Frequency: 50 Hz or 60 Hz.
Mounting Type: Horizontal or Vertical.
Standards: Conforms to standards like IS/IEC:62271 and IS:9920.
Application: Used for isolation and switching in high-voltage distribution and transmission networks, substations, and industrial applications To Earth (Min.) --- 75kvp

Enhanced Safety with Interlocking Mechanism

The integrated interlocking mechanism of this 33kV Polymeric Air Break Switch prevents accidental or improper operation, ensuring operator and maintenance crew safety. Earthing terminals further provide a grounded path for stray currents, minimizing the risk of electrical hazards during routine switching or maintenance operations.

Versatile and Reliable Construction

Fabricated from high-grade polymeric insulators and galvanized steel, this air break switch is engineered for durability and longevity. It can be mounted either horizontally or vertically, adapting to different pole configurations. The bimetallic clamp ensures strong connectivity with ACSR conductors, and the arcing horn is included for effective arc extinction during switching.

Performance for Demanding Outdoor Environments

With an ability to withstand wind loads up to 150 km/h, IP55 ingress protection, and high insulation resistance, this switch guarantees dependable performance in harsh climates. Thanks to a mechanical life exceeding 2,000 cycles and a sturdy, weather-resistant finish, the device remains reliable in India's varied outdoor service conditions.

FAQ's of 33kV Polymeric Air Break Switch:

Q: How does the interlocking mechanism enhance operational safety?

A: The interlocking mechanism ensures that the 33kV air break switch can only be operated under correct and designated conditions, preventing unintentional or unsafe switching. This reduces the risk of accidental electrical faults or operator injury during routine maintenance and operation.

Q: What are the mounting options available for this Polymeric Air Break Switch?

A: This air break switch offers both horizontal and vertical mounting configurations, providing flexibility to suit different pole arrangements commonly found in outdoor power distribution networks.

Q: When should I request the auxiliary switch provision?

A: The auxiliary switch provision should be requested at the time of ordering if you need remote status monitoring or integration with automated control systems. It's an optional feature that can be added for advanced operational feedback or automation needs.

Q: Where is the ideal installation location for this switch?

A: This switch is designed for outdoor installation on 33kV distribution lines, typically mounted on utility poles. Its design and protective features make it well-suited for use across a diverse range of environmental conditions in India.

Q: What is the process of operating this switch during maintenance or emergency?

A: The switch operates through a manual handle or an optional motor actuator. Before operating, the interlocking system must be properly disengaged. The arcing horn assists in safe arc extinction during switching, and the earthing terminal must be used to ensure operator safety throughout the process.

Q: How does the product benefit power distribution systems?

A: The robust build, reliable insulation, low contact resistance, and substantial mechanical life minimize downtime and maintenance. These attributes make it a dependable choice for utilities and service providers, contributing to efficient and safe power distribution.

Q: What levels of current and voltage can this switch accommodate?

A: The switch supports rated voltages up to 33kV (with a maximum of 36kV) and comes in configurations for either 800A or 1250A maximum current, making it suitable for use in medium-voltage, high-load outdoor circuits.

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