Medium voltage switchgear and circuit breaker life extension.

CIM Bulletin, Vol. 91, No. 1024, 1998

K.J. Boser, Magna Group of Companies, Saskatoon, Saskatchewan

edium Voltage (MV) metal clad switchgear is referred to as the voltage class from 2.4 kV to 38 kV. Technological advances in circuit breaker designs over the last 20 years have given rise to retrofit options in lieu of complete replacement for older outdated circuit breaker technology. This paper examines the four MV breaking techniques that exist in industry and investigates various retrofit versus refurbish options for switchgear modernization and life extension.
Keywords: Equipment, MV breaking mediums, MV distribution equipment, Switchgear modernization.