![uses for an optical isolator uses for an optical isolator](https://www.rfwireless-world.com/images/Optoisolator.jpg)
![uses for an optical isolator uses for an optical isolator](https://numato.com/wp-content/uploads/2016/10/optoisolatorbreakout_2.jpg)
A feeder is a line that carries power from the Substation to the distribution system.
![uses for an optical isolator uses for an optical isolator](https://ae01.alicdn.com/kf/HTB1BGLvklcHL1JjSZFBq6yiGXXap/1310nm-1550nm-dual-stage-optical-isolator-use-for-Fiber-Amplifier-Polarization-insensitive-optical-isolator.jpg)
In a pantograph type isolator, both terminals at each side connect and disconnect only because of the forces of stress or tension, and usually is no locking mechanism. In a single break isolator, only one terminal connects and disconnects whereas in a double break isolator both terminals at each side connect and disconnect because the central terminal is moveable.
![uses for an optical isolator uses for an optical isolator](https://www.chinacablesbuy.com/wp-content/uploads/2016/07/optical-isolator-operation.png)
And for the reverse process, the first isolator is closed then the circuit breaker is closed and the circuit is reconnected. In high-voltage power systems, isolators are used in conjunction with circuit breakers to provide an extra layer of safety.Ī first circuit breaker is opened which disconnects the circuit then the isolator is also opened. Commonly used isolators are not intended to stop current during a fault to eliminate high voltage arcs, which occur due to disturbance in electric conductors. Isolator switches, in particular, are used in power grids and substations to efficiently isolate very high voltage apparatuses such as transformers and circuit-breakers when they are due for maintenance. And here isolators are particularly useful in eliminating grounding loops, such as lowering the risk of accidental paths for electric current to flow towards the ground. This figure shows isolators being used as insulators in transmission lines to isolate transmission towers from the conductor.