Direct High-Voltage Measurement Simplifies Testing
Yokogawa Test & Measurement announced the launch of the WT1500 power analyzer on July 24. As the first product in the company’s WT series capable of directly measuring 2000V DC voltage, the WT1500 eliminates the need for traditional high-voltage dividers. This advancement simplifies test setups and reduces measurement errors introduced by dividers, making it ideal for the development and validation of electric vehicles, energy storage systems, and renewable energy power conversion equipment.
The WT1500 features two types of input elements: the High Voltage (HV) element, which measures up to 2000V DC and signals up to 300 kHz, is tailored for power conversion systems (PCS) and energy storage systems (ESS). The Wide Bandwidth (WB) element supports voltages up to 1000V and frequencies as high as 2 MHz, specifically designed for modern electric vehicle motors. Both elements share sensor inputs, allowing flexible mixed configurations on a single unit.
Industry-Leading Accuracy and Scalability
The WT1500 delivers a total power accuracy of ±0.038% for DC and 50/60 Hz AC, with a low power factor accuracy of ±0.07% of apparent power. Yokogawa Test & Measurement states that these are the best DC measurement figures in the WT series. The analyzer supports four power measurements and four motor evaluations simultaneously, featuring built-in encoder and resolver signal inputs. This enables engineers to conduct motor efficiency tests without additional equipment, addressing the cumbersome process of synchronizing separate measurements via computer.