RC voltage dividers used in common GIS gas compartment
View Patent ↗An arrangement includes a gas insulated switchgear and a RC voltage divider. The gas insulated switchgear includes a switchgear compartment and a voltage divider compartment. The RC voltage divider and the gas insulated switchgear together at least partially form a hermetically sealed common gas compartment. A method for assembling the arrangement is also provided.
1. An arrangement, comprising:
a gas insulated switchgear and a RC voltage divider;
said gas insulated switchgear including a switchgear compartment and a voltage divider compartment;
said RC voltage divider and said gas insulated switchgear together at least partially forming a hermetically sealed common gas compartment; and
said RC voltage divider including an inner compartment being hermetically sealed against said voltage divider compartment, and said inner compartment including an active part of said RC voltage divider.
2. The arrangement according to claim 1 , wherein said voltage divider compartment and said switchgear compartment are not hermetically separated by a resin barrier.
3. The arrangement according to claim 1 , wherein said RC voltage divider includes one phase or three phases.
4. The arrangement according to claim 1 , wherein said inner compartment is filled with an insulating oil or an insulating gas.
5. The arrangement according to claim 1 , wherein said common gas compartment is filled with an insulating gas.
6. A method for assembling an arrangement including a RC voltage divider and a gas insulated switchgear including a switchgear compartment, the method comprising the following steps:
a) providing a RC voltage divider not having at least one of a hermetically sealed outer RC divider housing or a resin barrier adjacent a high voltage connection terminal of the RC voltage divider, and providing the RC voltage divider with a hermetically sealed inner compartment enclosing an active part of the RC voltage divider;
b) testing the RC voltage divider; and
c) mounting the RC voltage divider to the gas insulated switchgear and causing a gas insulated switchgear housing and a terminal cover plate of the RC voltage divider to at least partially together form a hermetically sealed common gas compartment.
7. The method according to claim 6 , wherein:
step a) includes providing the RC voltage divider without a divider compartment; and
step c) includes mounting an outer RC divider housing to the gas insulated switchgear to provide the divider compartment.
8. The method according to claim 6 , wherein the RC voltage divider includes one phase or three phases.
9. The method according to claim 6 , wherein step a) of providing the RC voltage divider includes filling the inner compartment with an insulating oil or an insulating gas.
10. The method according to claim 6 , wherein step c) includes filling an insulating gas into the common gas compartment.