Variable Speed Drive Characterization: Review of Measurement Techniques and Future Trends

Table 1

Electrical features of Hall effect closed loop voltage transducers.

𝑉1 (range)	500 V	1000 V	1500 V
Accuracy at 25°C	0.7–1.0%	0.2%	0.2%
Accuracy at −40 to + 85°C	0.6%	0.6%	0.6%
Linearity	0.1%	0.1%	0.1%
Offset voltage at 25°C	5.0 mV	5.0 mV	5.0 mV
Offset voltage at −40 to + 85°C	13.0 mV	13.0 mV	13.0 mV
Response time (90% 𝑉1max)	0.4 𝜇s	0.3 𝜇s	0.4 𝜇s
Frequency bandwidth from DC	400 kHz	500 kHz	800 kHz
𝑉1RMS (insulation test)	6 kV	6 kV	6 kV