Thursday, June 24, 2010

Four-channel DC high-voltage measurement system up to 1 kV

There's a new four-channel high-voltage DC measurement system called “High Voltage Iso DAQ” for safely and reliably measuring voltage levels in high-voltage DC systems such as those employed in the battery circuits used in electric and hybrid vehicles. This test and measurement system from Ipetronic has four electrically isolated high-voltage dividers that, together with four external HV current limiters, cover a measurement range of up to ±1000 V. Acquired measurement results are digitized using a 16-bit ADC and made available directly on the CAN bus. After that, the data can be evaluated using a notebook/PC with DAQ software or a data logger.

The High-Voltage Iso DAQ’s signal scaling and measurement rate are configurable. The test and measurement system supports channel sampling rates of 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000 and 2000 Hz, as well as a maximum overall sampling rate of 8000 Hz. The maximum permissible input voltage is 1000 V DC for CAT-I applications and 600 V AC for CAT-II applications at 50 Hz. Additional technical specifications include a test insulation voltage (2 s) of 3536 V AC and an input impedance of 21 MΩ//100 pF with the current limiter and HV cable. 

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