Vacuum based diverter switch for tap changer
View Patent ↗A retrofit diverter switch which has a mechanical and electrical interface that is compatible with the existing designs is provided. The diverter switch may include a vacuum switch. The feature where the mechanical and electrical interface is compatible enables a retrofit from traditional On Load Tap Changers to a vacuum based on Load Tap Changers. The diverter switch may be retrofitted into existing tap changer housings. Retrofitting from traditional to vacuum based, traditional to vacuum based and up rating, and vacuum up rating may be possible. Also, the diverter switch may include modular components that allow for easy customization of the diverter switch for different applications.
1. A diverter switch for a tap changer, the diverter switch comprising:
a main contact; transition contacts;
a vacuum switch disposed to quench arcing when switching between the main contacts and the transition contacts; and
a housing for receiving the diverter switch, wherein the housing includes an interface for the diverter switch, wherein the interface includes: guide holes for pins on the diverter switch, a drive disk, bottom plug-in contacts for neutral point, and plug-in contacts for the phases.
2. The diverter switch according to claim 1 , wherein the main contacts and the transition contacts are disposed within the vacuum switch.
3. The diverter switch according to claim 1 , further comprising
an interface adapted to mate with a tap changer housing.
4. The diverter switch according to claim 1 , further comprising
an electrical circuit and a mechanical mechanism for switching taps are separated from each other.
5. A diverter switch comprising,
an interface to mate with an existing tap changer housing to allow retrofitting of the diverter switch;
main contacts;
transition contacts;
a transition resistor mount coupled to the transition contacts;
a transition resistor module having an interface to mate with the transition resistor mount, wherein a plurality of transition resistor modules may be coupled together; and
a housing for receiving the diverter switch, wherein the housing includes an interface for the diverter switch, wherein the interface includes: guide holes for pins on the diverter switch, a drive disk, bottom plug-in contacts for neutral point, and plug-in contacts for the phases.
6. The diverter switch according to claim 5 , further comprising:
a standard mount for a lifting rod;
a lifting rod having an interface compatible with the standard mount, the standard mount being adapted to receive lifting rods of varying length.
7. The diverter switch according to claim 5 , further comprising
a connection configured to connect the resistor modules together, wherein the connection comprises at least one of a star point connection or a single phase connection.
8. The diverter switch according to claim 5 , further comprising
a vacuum switch disposed to quench arcing when switching between the main contacts and the transition contacts.
9. The diverter switch according to claim 8 , wherein the main contacts and the transition contacts are disposed within the vacuum switch.
10. The diverter switch according to claim 5 , wherein each of the plurality of transition resistor modules is connected together differently configured connection.