SVERKER is synonymous with the very best in relay and substation testing and the new SVERKER900 now lifts this success to a higher level.

• The toolbox for substation 3-phase testing
• Three currents and four voltages
• Stand-alone functionality
• Rugged and reliable for field use
• Generation of 900 V and 105 A in single phase mode
• Secondary and primary testing

The SVERKER 900 Relay and Substation Test System is the 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 SVERKER 900 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 105A AC 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. Transformers are a marvel of physics and engineering. 

They allow one continuous energy path to meet the needs of many different segments; they provide a link, for example, between transmission circuits that operate most efficiently at high voltages and distribution circuits that necessarily operate at medium voltage. Transformers do this within an impressively small footprint and with remarkably low intrinsic losses. Megger, a true pioneer in dielectric testing, has been associated with transformers from almost the very beginning.

Screening and diagnostic tests provide information about all three of the transformer’s health indices:

• Dielectric – the ability of the transformer’s insulating materials to support an electric field and thereby provide electrical isolation of energized parts from other parts that are operating at different voltages or that are maintained at ground potential
• Mechanical – this relates to the ability of a transformer to carry current, and therefore also encompasses magnetic health
• Thermal – the ability of the transformer to dissipate heat safely and effectively