AC test systems

DiTAS

The DiTAS test system is used for type, routine and special tests of distribution transformers in the factory. It meets the requirements of IEC 60076…
+ THD < 5%
+ PD level < 5 pC
+ frequency converter 16 ⅔ … 200 Hz for supply of an entire test run by one power source

WGSBS

The modular design of this high voltage module test set (WGSBS) allows it to be used to test up to 100 kV AC voltage, up to 135 kV DC voltage, and up…
+ Intuitive configuration and operation
+ Modular design allows expansions later on
+ Efficient space usage by combining AC, DC, and impulse voltages in one test system

WR

The AC resonant test systems with variable inductance (WR) use the resonance between the capacitive test object and the inductive HV reactor of the…
+ Low level of partial discharge < 2 pC
+ Higher duty cycle thanks to excellent cooling properties
+ Low power demand due to high quality factor

WRM

The WRM AC resonant test systems with variable inductance use the resonance between the capacitive test object and the inductive HV reactor of the…
+ Low level of partial discharge < 2 pC
+ Extremely high test voltages thanks to the possibility of cascading the high voltage modules
+ High degree of variability of voltage and power parameters thanks to single, series, or parallel operation of high voltage modules

WRU

The WRU AC resonant test systems with variable inductance use the resonance between the capacitive test object and the inductive HV reactor of the…
+ Low level of partial discharge < 2 pC
+ Higher duty cycle thanks to excellent cooling properties
+ Low supply power thanks to high quality of resonance reactor

WRV T

Withstand voltage tests on AC and DC XLPE cables can be performed using the AC test system with variable frequency (WRV T) in the factory or once laid…
+ Pure sinusoidal voltage at the output
+ Low PD background noise level < 10 pC
+ IEC-compliant frequency range from 20 Hz to 300 Hz

WRV M

AC test systems with variable frequency (WRV M) are used for withstand voltage testing on transformers after they are installed on-site and for…
+ Pure sinusoidal voltage at the output
+ Low PD background noise level < 2 pC
+ IEC-compliant frequency range from 40 Hz to 200 Hz

WRV TM

Withstand voltage tests on XLPE cables can be performed using the AC test system with variable frequency once laid on-site. The test system operates…
+ Pure sinusoidal voltage at the output
+ Low PD background noise level < 10 pC
+ IEC-compliant frequency range from 20 Hz to 300 Hz

WRV O

Withstand voltage tests on inter arary cables of offshore wind farms can be performed using the AC test system with variable frequency (WRV T) once…
+ Pure sinusoidal voltage at the output
+ Low PD background noise level < 10 pC
+ IEC-compliant frequency range from 20 Hz to 300 Hz

WRVG G

Testing of withstand voltage at GIS can be performed using the AC voltage test system with variable frequency once installed on-site. The test system…
+ Pure sinusoidal voltage at the output
+ Low PD background noise level < 10 pC
+ Quick and easy setup of test system

WP PEOI

AC test systems with transformer design, type WP, are used to test high voltage products (for example, high voltage cables, power transformers,…
+ Space-saving design in a vertical cascade arrangement thanks to modular design
+ Suitable for PD measurements due to very low internal PD level
+ Suitable for short-lasting loads due to the test system’s short-term overload capacity

WP PEO

AC test systems with transformer design, type WP, are used to test high voltage products (for example, high voltage cables, power transformers,…
+ Saves space in the test bay thanks to earthed metal tank enclosure
+ Very well suited for short-lasting higher loads thanks to the system design allowing continuous operation and high currents (high power)
+ Suitable for PD measurements due to low PD level

WP G

AC test systems with oil colled metal tank test transformer, type WP G, are used to test high voltage products (for example, high voltage cables,…
+ Continuous duty cycle: best suited for continuous production testing
+ highest power ratings
+ overload reserves

WPG G

AC test systems with transformer design, type WP, are used to test high voltage products (for example, high voltage cables, power transformers,…
+ Suitable for short-lasting loads thanks to the test system’s short-term overload capacit
+ Ideal for PD measurements because the system is built entirely in GIS design
+ Compact size/minimal weight

WV for factory testing

The test system for power transformers WV is used for transformer testing in the factory. It enables induced AC voltage tests, measurement of no-load…
+ THD < 5 %
+ PD noise level < 10 pC
+ Free adjustable frequency 40 Hz to 200 Hz

WV for on-site testing

The test system for power transformers WV is used for on-site transformer testing. It enables induced AC voltage tests, measurement of no-load…
+ THD < 5 %
+ PD noise level < 10 pC
+ Free adjustable frequency 40 Hz to 200 Hz

WV 18-18

The WV 18-18/1.4 is a portable three-phase test source for induced voltage testing and partial discharge measuring of distribution transformers. The…
+ powerful three-phase test source for PD measurements on transformers up to 8 MVA rated power
+ time-saving diagnostics options on site and in the factory
+ sturdy and compact design for easy transport and use even in confined space
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