Different types of disconnectors are required in power networks around the world, depending upon users' preference, substation configuration and application constraints. There are 6 main types mostly used: horizontal center-break, horizontal double-break, pantograph, semi-pantograph, vertical-break and horizontal knee types. Main characteristics and applications are as follows: - The horizontal center-break is mostly frequently used in substation due to its simplicity and flexibility. - The horizontal double-break is suitable for substations with limited phase distances and installations with low vertical clearances. - Pantograph and semi-pantograph are for applications with busbars arranged at two different levels and suitable for substation with small installation area. - The vertical-break has a minimum clearance between phases, hence suitable for substation having limited space. - The horizontal knee-type requires smallest space in both horizontal and vertical directions due to minimum phase-to-phase distance and reduced overall height of the arm in open position; hence also suitable for substation having limited space.
High Voltage Products
If you want to purchase a product, need any pricing information or need help or support from ABB, please contact your local partner.