Megger SVERKER 900 Three-Phase Relay and Substation Test System | 3 current + 4 voltage sources, single-phase mode 105 A / 900 V, DC and 10–600 Hz, operation without a PC

Megger SVERKER 900 Three-Phase Relay and Substation Test System

Overview

The SVERKER 900 is a Megger three-phase relay and substation test system, used mainly for manual three-phase secondary testing of protection equipment; the current and voltage sources can be connected in series or parallel for primary injection. The fourth voltage source can simulate a busbar reference voltage for testing numerical relays. It is operated via a touch screen, with no PC needed on site.

Key Specifications

• Current outputs: 3 × 35 A (AC / DC, 10 s ON / 20 s OFF, at least 15 times); 3 × 20 A continuous; 3 × 277 VA
• Voltage outputs: 4 × 300 V (AC / DC); 4 × 125 VA
• Single-phase mode: Current in parallel up to 105 A (721 VA); voltage in series up to 900 V (450 VA)
• Frequency and phase: DC, 10–600 Hz; phase 0–360°
• Measurement: Built-in voltmeter 0–900 V, ammeter 0–10 A; 6 binary inputs with timing; impedance, power, power factor
• Test functions: Timing, multi-timing (MTT), CT excitation curve, Prefault-Fault, ramp, sequence and impedance tests
• General: 5.7-inch touch screen; 100–240 V AC; 350 × 270 × 220 mm, 15.2 kg

Applications

• Commissioning and maintenance of protection relays in distribution substations, renewable energy plants and industrial power distribution.
• CT excitation curve, CT / VT ratio and polarity tests.

Specifications per the Megger product page and SVERKER 900 datasheet (V19) (retrieved 2026-10-21).