Sverker 900 Relay and Substation Test System Description

The SVERKER900 Relay and substation test system is the engineer’s ultimate toolbox that addresses the increasing need for three-phase testing capability in electrical distribution substations,
renewable power generation stations and industrial applications. The intuitive user interface is presented on the LCD touch screen. It has a powerful combination of current and voltage sources and a versatility of measurement possibilities.

The SVERKER900 is specifically designed for basic, manual three­ phase secondary testing of protection devices. In addition, various primary testing can be performed, since the current and
voltage sources can be series- and/or parallel connected to allow for up to 10SAAC or 900V AC output. All three current and four voltage sources can be individually adjusted with respect to
amplitude, phase angle and frequency. The fourth voltage source allows for testing of numerical relays that needs a reference voltage simulating the busbar.

Application

• Commissioning and maintenance of distributed and generator power Substation
• Protection relays
• Electromechanical relays
• Static relays
• Numerical relays
• Self-powered relays
• Plotting current transformer excitation curves
• Current and voltage transformer ratio tests
• Burden measurement for CT circuits
• Polarity (direction) tests
• Impedance measurement
• Primary injection in switchgear
• Three phase
• Single phase
• Checking SCADA annunciation and measurement values
• Wiring check
• Relays with current transformer-operated trip release unit