Manufacturer of Isolators / Stockiest of Over Head Line Materials / Govt Contractors.

Balaji Engineers - Manufacturer of Electrical Equipments and Government Licensed Electrical Contractor in  Maharashtra, Karnataka, Goa, India
  • Behind Kolhapur Axle,

  • M.I.D.C., Shiroli, Kolhapur

Balaji Engineers - Manufacturer of Electrical Equipments and Government Licensed Electrical Contractor in  Maharashtra, Karnataka, Goa, India

Polymer Type Isolator Disconnectors

In this Electrical informative blog, we will dive into what makes polymer isolator disconnectors so unique, their advantages, and why they are becoming a standard in modern electrical systems.


isolator structure

What is an Isolator Disconnector?

An isolator disconnector is an essential component in high-voltage electrical systems, used to safely disconnect parts of the circuit for maintenance or repair. Unlike circuit breakers, isolators are intended to open a circuit when no current is flowing, ensuring safety for workers handling maintenance tasks. In old days only Porcelain Post insulator Isolators been used , but now in modern electrical system polymer insulator type isolators are commonly using of EPC electrical companies .

Why Polymer Isolator ?

Historically, electrical isolators have been made from materials like porcelain or glass due to their insulation properties. However, the use of polymer-based materials has been growing rapidly. These polymers are specially engineered to be lightweight yet durable, making them ideal for electrical applications. Easy to Installation on Isolator mounting structure. Less efforts while alignment of Isolator in substation .

33kv 800 Amp Isolator disconnector Make- Balaji Isolator

Polymers used in isolators are typically composite materials, designed to withstand extreme weather conditions, pollution, and mechanical stress. Their composition includes a combination of glass-reinforced epoxy resin and silicon-based rubber, which offer excellent insulation and resistance to degradation.



33kv vacuum circuit breaker vcb

Key Benefits of Polymer Type Isolator Disconnectors

Polymer isolator disconnectors are widely used in various sectors, including:

Transmission and Distribution Systems: Ensuring safe isolation of circuits during maintenance in high-voltage transmission lines.


Substations : Protecting transformers and other essential equipment by providing reliable circuit isolation.


Renewable Energy : Used in solar farms and wind energy systems, where reliability and weather resistance are key.


Railway Electrification : Ensuring smooth operation of electrified railways by providing stable and reliable electrical isolation.


Industry substation : Industrial Substation Isolators.


11kv 400 Amp Polymer Isolator Disconnector


11kv 800 Amp Polymer Isolator Disconnector


22kv 800 Amp Polymer Isolator Disconnector


33kv 800 Amp Polymer Isolator Disconnector


33kv 1250 Amp Polymer Isolator Disconnector


33kv 2000 Amp Polymer Isolator Disconnector


33kv 3000 Amp Polymer Isolator Disconnector


66kv 800 Amp Polymer Isolator Disconnector


66kv 1250 Amp Polymer Isolator Disconnector


We can provide or Polymer Isolators in

hirsuphal Solar Plant, Baramati, Sakri Solar Plant, Dhule, Rewa Solar Park, Ahmednagar, Ralegan Siddhi Solar Project, Ahmednagar, Osmanabad Solar Project, Osmanabad, Beed Solar Park, Beed, Solapur Solar Power Plant, Solapur, Yavatmal Solar Project, Yavatmal, Chandrapur Solar Plant, Chandrapur, Kolhapur Solar Project, Kolhapur, Satara, Sangli, Ahmednagar, Nashik, Dhule, Kolhapur, Pune, Beed, Osmanabad, Ratnagiri, Bengaluru, Chennai, Ahmedabad, Hyderabad, Pune, Coimbatore, Jaipur, Bhopal, Jaisalmer, Gurugram, Agra, Jaipur, Udaipur, Delhi, Varanasi, Mumbai, Goa, Kochi, Mysore, Rishikesh, Jamshedpur, Bokaro, Rourkela, Durgapur, Bhilai, Visakhapatnam, Salem, Burnpur, Nagpur, Raipur, Ahmednagar, Kutch, Jaisalmer, Tirunelveli, Coimbatore, Nashik, Ratnagiri, Satara, Bhuj, Madhya Pradesh , Bikaner, Pavagada, Kutch, Rewa, Jaisalmer, Neemuch, Khavda, Barmer, Auraiya, Tamil Nadu , Andhra Pradesh, Arunachal Pradesh, Assam, Bihar, Chhattisgarh, Goa, Gujarat, Haryana, Himachal Pradesh, Jharkhand, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Manipur, Meghalaya, Mizoram, Nagaland, Odisha, Punjab, Rajasthan, Sikkim, Tamil Nadu, Telangana, Tripura, Uttar Pradesh, Uttarakhand, West Bengal, Jammu and Kashmir, Ladakh

Frequently Asked Questions on Polymer Isolator

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