VT1005 - High-Precision 5000 V AC/DC Voltage Divider for Advanced Power Analysis
AC/DC high-voltage divider up to 5 kVrms, bandwidth DC to 4 MHz (–3 dB), 1000:1 division ratio, ±0.08% DC accuracy, ±0.04% accuracy at 50/60 Hz, amplitude flatness ±0.1% to 200 kHz, phase flatness ±0.1° to 500 kHz, CMRR 80 dB at 100 kHz, BNC output
Product number:
VT1005
EAN:
4536036014620
Length:
346 mm
Width:
195 mm
Height:
83.2 mm
Weight:
2.2 kg
Product information VT1005 - High-Precision 5000 V AC/DC Voltage Divider for Advanced Power Analysis
Key Specifications
More than specs – find more details here:
- Maximum input voltage: 5 kVrms
- Bandwidth: DC to 4 MHz (–3 dB)
- Accuracy: ±0.08% (DC), ±0.04% (50/60 Hz)
- Flatness: amplitude ±0.1% to 200 kHz, phase ±0.1° to 500 kHz
- CMRR: 80 dB at 100 kHz
Unique Advantages of the HIOKI VT1005
- Precise high-voltage measurement up to 5 kVrms, ideal for power analysis
- Amplitude and phase accuracy maintained up to 1 MHz
- High common-mode rejection with 80 dB CMRR at 100 kHz ensures stable measurement in noisy environments
Typical Applications
- Loss measurement in high-voltage transformers, inductors, and coils
- Efficiency evaluation of SiC/GaN-based high-voltage inverters and converters
- Performance assessment of wireless power transfer (WPT) systems
- Power analysis in railway traction and large-scale industrial power systems
- Testing and efficiency verification of high-voltage solar inverters
Detailed Product Overview
The HIOKI VT1005 is a high-precision AC/DC high-voltage divider for measuring signals up to 5 kVrms. It scales input voltage by a fixed 1000:1 ratio and outputs a clean, scaled-down signal via BNC for direct connection to power analyzers, memory recorders, oscilloscopes, or any other instrument with a BNC input.
The HIOKI VT1005 is a high-precision AC/DC high-voltage divider for measuring signals up to 5 kVrms. It scales input voltage by a fixed 1000:1 ratio and outputs a clean, scaled-down signal via BNC for direct connection to power analyzers, memory recorders, oscilloscopes, or any other instrument with a BNC input.
The VT1005 delivers outstanding accuracy across a wide frequency range: ±0.08% for DC and ±0.04% at 50/60 Hz, with amplitude flatness of ±0.1% up to 200 kHz and phase accuracy of ±0.1° up to 500 kHz. This wide and flat frequency response enables precise power analysis even in fast-switching systems with significant harmonic content, supporting measurements up to 4 MHz (–3 dB).
Comparison of an AC/DC high voltage divider with differential probes
Compared to traditional high-voltage differential probes, the HIOKI VT1005 High Voltage Divider delivers clear performance advantages. Most differential probes offer around 2% amplitude accuracy and typically do not specify phase accuracy. These features make them unsuitable for precise power measurement, particularly in systems deploying Pulse Width Modulation (PWM), such as high voltage DC/DC converters and traction drive inverters. The VT1005 is engineered for high-accuracy AC/DC voltage measurement with well-defined phase and amplitude specifications, making it the right choice for such demanding applications.
Passive architecture for stable measurement results
The passive architecture of the VT1005 eliminates issues commonly associated with active differential probes, such as probe loading, thermal drift, and active circuit noise. This results in cleaner signals, higher measurement accuracy and long-term stability, even at higher frequencies.
The VT1005 also features a high common-mode rejection ratio of 80 dB at 100 kHz, allowing it to maintain measurement integrity even in electromagnetically noisy environments such as inverter test benches or industrial power systems.
Thanks to its accuracy, frequency response, and noise immunity, the VT1005 is an essential tool for measuring losses in high-voltage transformers and inductors, evaluating the efficiency of SiC/GaN-based power electronics, and qualifying wireless power transfer (WPT) systems.
- VT1005 High Voltage Divider
- L1050-01 High Voltage Cords 1.5 m
- L9217 BNC cable
- 9704 Adapter BNC / banana
- Power cord ×1
- Instruction manual
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The 9704 is a versatile banana to BNC conversion adapter accessory wherever this is required. It is suitable for example for Hioki digital multimeters where current probes can be connected, or where a banana to BNC test lead conversion is required for measurement applications.Dimensions: 63W×33H×13D mmConnector configuration: 2x Banana male, 1x BNC female Distance between banana plugs: 19 mmVoltage protection category: CAT III 600VCompatible AC clamp and flexible probes: 9010-50, 9018-50, 9132-50, CT9667-01, CT9667-02, CT9667-03 Compatible Digital Multimeters: DT4252, DT4253, DT4255, DT4256, DT4261, DT4281, DT4282 Others: Connection Cable L9097