EN 
ES_ES 
DE 
COURSES
THEORETICAL AND PRACTICAL
We offer theoretical and practical courses for engineers and electrical technicians on electrical concepts and testing.
SERVICE OF
LABORATORY
We have a complete laboratory for calibration and repair of test instruments with which we provide after-sales support.
High Voltage Equipment
Why use HAPAM disconnect switches?
- More than 75 years of experience
- Durable and reliable design
- More than 30,000 disconnect switches and grounding blades currently in service in more than 80 countries around the world
- Virtually maintenance-free.
Main blade
The main blade is made of an aluminum tube with silver-plated copper contacts at both ends. When the disconnect switch is closed, the main blade performs a two-step motion: first, the main blade lowers until it reaches a completely horizontal position, and then it rotates so that contact pressure is applied at both ends of the disconnect switch.
The main contacts feature an “inverted loop” design, which makes them suitable for very high short-circuit currents. Anti-corona shields are provided.
Grounding blades
Hapam disconnect switches can be equipped with grounding blades installed on the right and/or left side.
The grounding blade consists of an aluminum tube fitted with silver-plated contacts at both ends.
The grounding blade consists of an aluminum tube fitted with silver-plated contacts at both ends.
Types of disconnect switches:
- SSBII Center-Break Disconnector
- SSBIII Double-Pole Disconnector
- VSSBIII Vertical-Opening Disconnector
- VKSBIII Semi-Pantograph Disconnector
- GSSB Pantograph Disconnector
- TEB-Type Grounding Blades
Ceramic Insulators
- Seves and its substation insulator business were established in 2007 with the acquisition and integration of PPC Insulators and Santana Insulators into the Seves Group. With more than 100 years of experience in its current Substation Division, Seves is the world’s leading supplier of high-voltage insulators. As a result, the group is well-positioned to serve customers worldwide with the broadest product portfolio.
