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- DC to 300kHz bandwidth – up to 30kV
- High transient voltage resistivity
- Protection class IP65 for outdoor application
- Insulation diagnostics by tan δ measuring
- Negligible phase error, best suited for wideband power measuring
The wide band precision high voltage divider HST 30 expand the voltage measuring range of ZES ZIMMER precision power meter LMG for use at power grid of nominal voltage up to 30kV. The high voltage input is equipped with 2.5m cable. The outdoor termination of this cable is attached to the voltage measured against earth. The HST 30 divides DC, AC or any distorted voltages with very high accuracy by the factor 10000. The divided voltage is available at the buffered low impedance TNC output. To avoid noise interference it is recommended to useshielded cables to the measuring input of the LMG.
Application at
- medium voltage power grids up to 30kV
- railway contact lines up to 25kV
- test voltages for insulation diagnostics up to 40kV
- converter feed medium voltage motors
e.g. to make
- precise high bandwidth power measurements
- analyse of voltage harmonics
- precise measurement of dielectric losses
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- Precise measurement of high voltages up to 20kV, DC to 300kHz
- High transient voltage resistivity
- One-, two- and three-phase version
- Line to line voltage as difference at outputs
- Negligible phase error, therefore very suitable for wideband power measuring
Optimum for Inverters at Medium Voltage.
The wide band precision high voltage divider of series HST expand the voltage measuring range of ZES ZIMMER precision power meter LMG for use at power grid of nominal voltage over 1000V. The high voltage inputs are equipped with 2m leads that is attached to the voltage measured against earth. The open leads can be aligned by the customer. The HST 3 (resp. HST6/9/12) divides DC, AC or any distorted voltages with very high accuracy
by the factor 1000 (resp. 2000/3000/4000). The divided voltage is available at the buffered low impedance BNC output. To avoid noise interference it is
recommended to use shielded cables to the measuring input of the LMG.
The HST can be delivered in one, two or three channel version as to match the particular measuring task. The single phase HST is used in single ended systems (e.g. overhead traction line, ultrasonic applications). Line to line voltages can be measured as difference between the output signals of the channels. For floating (difference) voltage measuring therewith the 2-phase HST is best suitable. Typical application fields for the 3-channel HSTx-3 are frequency inverter fed medium voltage drives and power quality analysis
at the distribution network.
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