Insulect Disconnectors are designed to accommodate each customer’s needs and the layout of each substation. For over two decades, our disconnector and earthing switches have been 100% locally designed, built and serviced to ensure the best possible solution tailored to the needs of our customers.
Features & Options
Contacts:
All contact surfaces are silver plated copper. Copper components other than the contact surfaces are tin plated as standard.
Flickers:
The moving blades are supplied with a spring-loaded flicker to quickly extinguish residual current arcing when the switch is opened live.
Custom footprint:
Insulect disconnectors can be customised to suit specific substation layouts, configurations and structure types.
Insulators:
A variety of insulator types can be accommodated for each voltage level, including electrical and mechanical ratings and pollution levels.
Each disconnector can be fitted with independent earth switches where required.
Earth switches can be supplied for one or both sides of the switch.
Mechanical or electrical interlocks can be provided
for all disconnector models.
Mechanical interlocks prevent the earth switch
operating when the disconnector is in the ‘closed’
position and vice-versa.
Electrical interlocks can be provided for disconnectors and earth switches that are fitted with a motor drive. It prevents the motor drive from engaging unless it is safe to do so.
The mechanism for each switch can be fitted with Auxiliary Switches to enable a substation control system to monitor the state of the disconnectors and earth switches.
Auxiliary switches can be supplied with more than 12 poles, depending on the control information required
For many applications it is desirable to operate switches remotely.
A motor drive eliminates the need for manual operation of disconnectors and earth switches and will
enable operation when it is not safe to have a man in the switch yard. It also enables disconnectors and earth switches located at remote or unmanned sites to be operated from a remote control room when there are no local personnel available.
- IP65 rated stainless steel cabinet.
- Variable speed DC motor.
- The control voltage can be specified as AC or DC.
- Limit switches coupled with mechanical stops prevent the output shaft over-rotating and damaging the contacts.
- Protection is provided for the motor by fuses and thermal overload devices.
- An anti-condensation heater prevents moisture build-up inside the cabinet.
- Positioning and mounting of motor drive components can be customised to suit user requirements.
Insulect’s switchgear team provide support services for asset management of disconnectors.
We assist customers in maintaining their disconnector fleet with a range of services and expert advice, to keep their fleet performing optimally.
- Site assessments.
- Customer site repair and refurbishment.
- Insulect service centre refurbishment.
The refurbishment services return aged disconnectors to correct operating condition, replacing all corroded, worn or damaged components.
All services are covered by warranty. Available for Insulect and AKPS branded product, as well as other manufacturer brands
