Patent application number | Description | Published |
20130167675 | SECTOR GEAR AND GAS-INSULATED SWITCHGEAR HAVING THE SAME - Provided is a sector gear including: a drive gear having a drive part that forms a part of a circle and has a plurality of teeth and a non-drive part that forms a remaining part of the circle and provides a non-contact angle of at least approximately 90 degrees; first and second movers forming a disconnector and a grounded breaking switch, respectively; and first and second driven gears engaged with the drive gear and respectively engaged with the first and second movers and configured to make the first mover or the second mover operate in conjunction with the drive part of the drive gear according to a direction of rotation of the drive gear, wherein an intermediate angle between the first and second movers is between approximately 90-135 degrees. The present invention can reduce the size of the gas-insulated switchgear having the sector gear. | 07-04-2013 |
20130168358 | DRIVER FOR SWITCH IN GAS INSULATED SWITCHGEAR AND GAS INSULATED SWITCHGEAR HAVING THE SAME - A driver for a switch in a GIS (Gas Insulation Switchgear) includes a motor, a shaft connected with a moving contact of the switch, a gear connected with one terminal of the shaft and configured to transfer power of the motor to cause the shaft to reciprocate the moving contact through the shaft, a cam spline combined with the shaft and spaced apart from the gear, and a micro-switch connected with the cam spline and configured to control an operation of the motor. | 07-04-2013 |
20140078648 | GAS INSULATED SWITCHGEAR - A gas insulated switchgear includes a support frame, a first fixed conductor being installed on one side of the support frame, a second fixed conductor opposing the first fixed conductor and being installed on another side of the support frame, a screw forming an axis on inner of the support frame and being spaced apart from the first and second fixed conductor, a first movable contact wherein one side of the first movable contact is bent and another side of the first movable contact moves along the axis through a rotation of the screw and a second movable contact wherein one side of the second movable contact is bent and another side of the second movable contact is move along the axis through a rotation of the screw. | 03-20-2014 |
20140083832 | GAS INSULATED SWITCHGEAR - A gas insulated switchgear includes an enclosure, a first fixed conductor, one side of the first fixed conductor being bent at a right angle and another side of the first fixed conductor being fixed on one side of the enclosure, a second fixed conductor configured to be spaced apart from the first fixed conductor and configured to be fixed on another side of the enclosure, a screw configured to form an axis on inner of the enclosure and being spaced apart from the first and second fixed conductors and a movable conductor configured to move along the axis through a rotation of the screw, one side of the movable conductor being in contact with the second fixed conductor. | 03-27-2014 |
20140211378 | GAS INSULATED SWITCHGEAR - A gas insulated switchgear including a circuit breaker, a first through third switches, a voltage transformer, a cable head, a gas insulated busbar unit, and first and second current transformers is provided. The gas insulated busbar unit is connected with the second current transformer and the first and second switches are connected with a bottom of the gas insulated busbar unit. The third switch is connected with the first current transformer, the cable head is connected with the third switch, and the voltage transformer is connected with a top of the cable head. The first and second current transformers are respectively connected with first and second sides of the circuit breaker. | 07-31-2014 |
20150228427 | CIRCUIT BREAKER OF GAS-INSULATED SWITCHGEAR WITH FIXED PART OF DECREASED LENGTH - A circuit breaker of a gas-insulated switchgear includes a movable part conductor, a fixed part conductor, and a movable rod part which is moved between them to be positioned in an inserted state and an interrupting state. The fixed part conductor includes a fixed part conductor pipe which has a cylindrical shape, a fixed part arc contact which is fastened to a center shaft of the fixed part conductor pipe, a support which fastens the fixed part arc contact to the fixed part conductor pipe, and a support shield which covers a surface of the support. | 08-13-2015 |
20150294818 | GAS-INSULATED CIRCUIT BREAKER - A gas-insulated circuit breaker may include: a fixed contact having a hollow formed therein; a fixed arc contact disposed in the hollow of the fixed contact; a fixed-side conductor provided to surround the fixed contact and configuring a gap between the fixed-side conductor and the fixed contact as a discharge path for an insulation. gas; a movable contact having a hollow formed therein; a movable arc contact disposed in the hollow of the movable contact; a movable-side conductor provided to surround the movable contact and configuring gap between the movable-side conductor and the movable contact as a discharge path for an insulation gas; a first extension part formed. on the fixed-side conductor and extending the discharge path for the insulation gas of the fixed-side conductor; and a second extension part formed on the movable-side conductor and extending the discharge path for the insulation gas of the movable-side conductor | 10-15-2015 |
20150294820 | SELF-BLAST CIRCUIT BREAKER REUSING ARC HEAT - The present disclosure relates to a circuit breaker of a gas-insulated switchgear, and more particularly, to a self-blast circuit breaker of a gas-insulated switchgear, which reuses arc heat. A self-blast circuit breaker having a heat expansion chamber and a puffer chamber includes auxiliary intake valves which introduce a hot gas exhausted through an inside of an actuating rod, into the heat expansion chamber. | 10-15-2015 |