EM Test Variac NX 1-260-16

Description

The single phase motor variacs of the NX 1-260-XX series allow to steplessly adjust the EUT supply voltage from 0V to 260 V (280 V) when supplied by a 230 V mains supply voltage. By means of the variac NX 1-260-xx series tests as required in the standard IEC / EN 61000-4-11 (voltage dips and short interruptions as well as the optional voltage variation) can be performed adjusting the voltage to any voltage level. Apart from this the motor variac is used for power-frequency magnetic field tests as per IEC / EN 61000-4-8.

Benefits:

Controlled by a DC driver the output of the variac NX 1-260-xx motor variac is steplessly adjustable to meet various purposes of testing. Performing voltage dips the voltage level can be adjusted to any level and therefore covers a wider range of standard requirements apart from the classic 40%/70%/80% dips levels known from IEC/EN 61000-4-11. Moreover, by means of the variac NX 1-260-xx series the option voltage variation test specified by IEC/EN 61000-4-11 can be performed as well.

Magnetic field testing at power-frequency as per IEC/EN 61000-4-8 require to adjust the current flowing through the magnetic field coil. The variac NX 1-260-xx series supplies the primary voltage to the current transformer (additional option for power-frequency magnetic fields) and the magnetic field can be adjusted precisely.