Home / Electrical Power / HV Circuit Breaker Operating Mechanisms – Hydraulic Systems HV Circuit Breaker Operating Mechanisms – Hydraulic Systems Join Now SKU: EP12 Category: Electrical Power Product ID: 15195 Related products EP09Distribution & Substation Automation (including Comms) for Electrical Power Systems Join Now EP10Electrical Substation Safety for Engineers and Technicians Join Now EP17Motor Protection, Control and Maintenance Technologies Join Now