Hioki VT1005 AC/DC High Voltage Divider
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- Safely Measure High Voltages up to 5000 V
- Detect Efficiency Improvement Effects on the Order of 0.1%
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Description
Inverters used in rail and power system applications convert high-voltage power. To measure the efficiency of such conversions, it’s necessary to measure voltages of 1000 V and above. The VT1005 divides voltages of up to 5000 V and outputs them to a power analyzer.In order to measure the efficiency of high-efficiency inverters with a high degree of precision, you need to be able to accurately measure power from DC to high frequencies. Thanks to its excellent frequency flatness, the VT1005 makes possible accurate measurement at frequencies ranging from the fundamental wave to switching-frequency components.
Key Features
- Max. Input 5000 V (*1)
- 2000 V CAT II
- 1500 V CAT III
- Measurement Accuracy:
- ±0.08% (DC)
- ±0.04% (50/60 Hz)
- ±0.17% (50 kHz)
- Frequency Flatness:
- ±0.1% Amplitude Band 200 kHz Typ.
- ±0.1° Phase Band 500 kHz Typ. (*2)
- Measurement Band:
- DC to 4 MHz (-3 dB)
- Noise Resistance:
- CMRR 80 dB Typ. (100 kHz)
- Differential Input Method
Divides High Voltage by 1000:1 and Outputs
- Max. Input 5000 V (*1), 2000 V CAT II , 1500 V CAT III
Generally, a power analyzer alone cannot directly measure voltages above 1000 V (AC). With the VT1005, large voltages of up to 5000 V can be accurately measured with a power analyzer.
PW8001 and VT1005 | PW8001 Standalone (*4) |
|---|---|
| Rated Voltage | AC/DC 5000 V ±7100 V peak |
| Measurement Category | AC/DC 5000 V (*1) AC/DC 2000 V CAT ll (*2) AC/DC 1500 V CAT lll (*3) |
*1: ±7100 Vpeak, no measurement category, anticipated transient overvoltage of 0 V
*2: Anticipated transient overvoltage of 12000 V
*3: Anticipated transient overvoltage of 10000 V
*4: When using the U7001 input unit
*5: DC 1500 V
*6: DC 1500 V CAT II, DC 1000 V CAT III, Anticipated transient overvoltage of 8000 V
Accurate Power Measurement From Fundamental to Switching Frequency Components
- Measurement Accuracy: ±0.08% (DC), ±0.04% (50/60 Hz), ±0.17% (50 kHz)
- Frequency Flatness: ±0.1% Amplitude Band 200 kHz Typical
- Frequency Flatness: ±0.1° Phase Band 500 kHz Typical (*1)
- Measurement Band: DC to 4 MHz (-3 dB)
*1:After phase correction by the power analyzer
The VT1005 can measure voltage with excellent accuracy across a broad band of frequencies. Accuracy is 0.1% or less at DC and commercial frequencies (50/60 Hz). In addition, the device can measure the most commonly used switching frequencies (10 kHz or less) and the switching frequencies of inverters that use SiC power devices (from 10 kHz to 50 kHz) with a high degree of accuracy.
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Inverters used in rail and power system applications convert high-voltage power. To measure the efficiency of such conversions, it’s necessary to measure voltages of 1000 V and above. The VT1005 divides voltages of up to 5000 V and outputs them to a power analyzer.In order to measure the efficiency of high-efficiency inverters with a high degree of precision, you need to be able to accurately measure power from DC to high frequencies. Thanks to its excellent frequency flatness, the VT1005 makes possible accurate measurement at frequencies ranging from the fundamental wave to switching-frequency components.
Key Features
- Max. Input 5000 V (*1)
- 2000 V CAT II
- 1500 V CAT III
- Measurement Accuracy:
- ±0.08% (DC)
- ±0.04% (50/60 Hz)
- ±0.17% (50 kHz)
- Frequency Flatness:
- ±0.1% Amplitude Band 200 kHz Typ.
- ±0.1° Phase Band 500 kHz Typ. (*2)
- Measurement Band:
- DC to 4 MHz (-3 dB)
- Noise Resistance:
- CMRR 80 dB Typ. (100 kHz)
- Differential Input Method
Divides High Voltage by 1000:1 and Outputs
- Max. Input 5000 V (*1), 2000 V CAT II , 1500 V CAT III
Generally, a power analyzer alone cannot directly measure voltages above 1000 V (AC). With the VT1005, large voltages of up to 5000 V can be accurately measured with a power analyzer.
PW8001 and VT1005 | PW8001 Standalone (*4) |
|---|---|
| Rated Voltage | AC/DC 5000 V ±7100 V peak |
| Measurement Category | AC/DC 5000 V (*1) AC/DC 2000 V CAT ll (*2) AC/DC 1500 V CAT lll (*3) |
*1: ±7100 Vpeak, no measurement category, anticipated transient overvoltage of 0 V
*2: Anticipated transient overvoltage of 12000 V
*3: Anticipated transient overvoltage of 10000 V
*4: When using the U7001 input unit
*5: DC 1500 V
*6: DC 1500 V CAT II, DC 1000 V CAT III, Anticipated transient overvoltage of 8000 V
Accurate Power Measurement From Fundamental to Switching Frequency Components
- Measurement Accuracy: ±0.08% (DC), ±0.04% (50/60 Hz), ±0.17% (50 kHz)
- Frequency Flatness: ±0.1% Amplitude Band 200 kHz Typical
- Frequency Flatness: ±0.1° Phase Band 500 kHz Typical (*1)
- Measurement Band: DC to 4 MHz (-3 dB)
*1:After phase correction by the power analyzer
The VT1005 can measure voltage with excellent accuracy across a broad band of frequencies. Accuracy is 0.1% or less at DC and commercial frequencies (50/60 Hz). In addition, the device can measure the most commonly used switching frequencies (10 kHz or less) and the switching frequencies of inverters that use SiC power devices (from 10 kHz to 50 kHz) with a high degree of accuracy.