2. CONTENTS
Introduction
High-voltage circuit breaker
Disconnector or earthing switches
Voltage transformer
Current transformer
Terminals and connection elements
Local control cube
4. High-voltage circuit breaker
At core of our switchgear system is classical puffer
CB with three chamber and an optimized and solid
layout that optimal adapt with the pre-in-section
closing resistor stack.
The KEMA- certified CB is designed to provide
optimal performance and low maintenance.
5. HOW DOES IT WORK ?
High-voltage circuit breaker
6. Disconnector or earthing switches
• Disconnector provide a safe insulating gap to isolator
with different potential.
• The angular Disconnector integrated in the busbar
ensures the highest degree of flexibility in lay outing.
7. Disconnector or earthing switches
• Earthing switches connect isolating section of the
switchgear to the ground to protect personal during
maintenance and assembly work.
8. Voltage Transformer
• The single pole inductive voltage transformer are
connected to the switchgear with a standardized
connecting flange and a partition insulator.
• The primary winding is coiled on top of core and
the secondary windings. The latter are connected
to the terminal in the external terminal box
through a gas-tight multiple bushing.
9. Current Transformer
• The core concentrically enclose the primary
conductor and are located outside the gas
compartment elimination the need for as-tight feed
to the secondary terminals.
12. FURTHER PRESENTATION WORK
Maintenance of GIS sub-station
GIS approach in the GRID
Visit of 400/220KV GIS substation located at DASTAN
, bardoli .
13. REFERENCES
GAS INSULATED SWITCHEAR(R) , 2003.01(09)
2011.08 PRINTED IN KOREA HUMAN POWER.
SHUICHI SUIYAMA ,” EXTRA-HIGH VOLTAGE SF6
AS –INSULATED SWITCHEAR ” , IEEE , VOL.45
NO.3 , FUJI ELECTRICAL .
ABB, ELK-400, 800kV GAS-INSULATED
SUBSTATION .
