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 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 SVERKER 900 is specifically designed for basic, manual threephase 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 105 A AC or 900 V 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.
Commissioning and maintenance of distributed and generator power Substation
Plotting current transformer excitation curves
Current and voltage transformer ratio tests
Burden measurement for CT circuits
Polarity (direction) tests
Primary injection in switchgear
Checking SCADA annunciation and measurement values
Examples of what SVERKER 900 can test ANSI® No.Distance protection / under impedance relay 21 Overfluxing relays 24 Synchronising or synchronism-check relays 25 Undervoltage relays 27 Directional Power relays 32 Undercurrent or underpower relays 37 Loss of field relays 40 Negative sequence overcurrent relays 46 Phase sequence voltage relays 47 Thermal relays 49 Overcurrent- / ground fault relays 50 (N) Inverse time overcurrent-/ ground fault relays 51 (N) Power factor relays 55 Overvoltage relays 59 Voltage or current balance relays 60 Directional overcurrent relays / ground fault relay 67 (N) Motor overload protection 66 DC overcurrent relays 76 Phase-angle measuring or out-of-step protection relays 78 Automatic reclosing devices 79 Frequency relays 81 Carrier or pilot wire 85 Differential protection relays (differential circuits) 87 Directional voltage relays 91 Voltage and power directional relays 92 Tripping relays 94