Product Profile of Isolators With/ Without Earth Switch

Isolators with/ without Earth Switch are able to open or close a circuit if either a negligible current is switched or if no significant change occurs in the voltage between the terminal of the poles. These Isolators are designed for horizontal outdoor application. These Isolators are available in robust construction and are capable of working under constant contact pressure. Isolators with/ without Earth Switch have stationary contacts that are silver plated copper, spring loaded to maintain constant contact pressure.

Key Features of Isolators With/ Without Earth Switch

• Able to open or close a circuit if either a negligible current is switched or if no significant change occurs in the voltage between the terminal of the poles
• The disconnectors can be applied in many of the usual switchyard layouts of high voltage installation
• Designed for horizontal outdoor application
• The moving contact blade is an aluminium or copper tube with special copper profile with a bimetallic strip fitted with silver plated copper contacts.
• The stationary contacts are silver plated copper, spring loaded to maintain constant contact pressure
• The electrical contact system is easily and quickly replaced should it be damaged due to a fault current or damaging event
• Range of Terminal connectors to suit current requirements
• Robust construction
• Encapsulation of rotary pedestals and heads
• No significant changes of contact resistance over many years of services
• Constant contact pressure
• Stable rotary pedestals ensure no insulator deflection even with high static loads