Safely Measure High Voltages up to 5000 V
Detect Efficiency Improvement Effects on the Order of 0.1%
Key Features
FEATURES
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 |
AC 1000 V (*5) ±2000 V peak |
| Measurement Category |
AC/DC 5000 V (*1) AC/DC 2000 V CAT ll (*2) AC/DC 1500 V CAT lll (*3) |
AC 1000 V CAT ll (*6) AC 600 V CAT lll (*6) |
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.
Active power on the output side of inverters includes not only the fundamental component, but also switching components. In order to measure efficiency with a high degree of precision, you must be able to accurately measure not only the fundamental component, but also switching components.
High-voltage differential probes have a broad frequency band, but measurement error on the order of several percent occurs within that band. Thanks to high accuracy and excellent frequency flatness within its frequency band, the VT1005 makes it possible to detect efficiency improvement effects on the order of 0.1%, a task that has been impossible until now.
The VT1005 is highly resistant to both common-mode and high-frequency noise, allowing it to measure voltage accurately even in noisy environments. Since conversion devices like inverters are sources of noise, noise resistance is important in efficiency evaluation.
| Maximum rated voltage | 5000 V rms, ±7100 V peak (*1) |
|---|---|
| Maximum rated voltage (line-to-ground) |
No measurement category: 5000 V AC/DC (*2) Measurement category II: 2000 V AC/DC (*3) Measurement category III: 1500 V AC/DC (*4) |
| Voltage dividing ratio | 1000：1 |
| Measurement accuracy | ±0.08％(DC), ±0.04％(50/60 Hz), ±0.17% (50 kHz) |
| Frequency flatness |
Band where amplitude falls within ±0.1% range: 200 kHz (typical) Band where phase falls within ±0.1° range: 500 kHz (typical) (*5) |
| Measurement bandwidth | DC to 4 MHz (Amplitude and phase accuracy specified up to 1 MHz) |
| Common-mode voltage rejection ratio (CMRR) |
50 Hz/60 Hz: 90 dB（Typical） 100 kHz: 80 dB (Typical） |
| Measurement method | Differential input |
| Operating temperature and humidity range | -10°C to 50°C (14°F to 122°F), 80% RH or less (non-condensing) |
| Storage temperature and humidity range | −20°C to 60°C (-4°F to 140°F), 80% RH or less (non-condensing) |
| Standards | Safety: EN 61010 EMC: EN 61326 Class A |
| Power supply | 100 V to 240 V AC (50/60 Hz) |
| Dimensions and Weight | Approx. 195.0 mm (7.68 in) W × 83.2 mm (3.28 in) H × 346.0 mm (13.62 in) D mm Approx. 2.2 kg (77.6 oz.) |
| Included accessories | - L1050-01 Voltage Cord ×1 (1.6 m/ 5.25 ft) - L9217 Connection Cord ×1 (insulated BNC, 1.6 m/ 5.25 ft) - 9704 Conversion Adapter ×1 (insulated-female BNC-to-banana plug) - Power cord ×1 |
| Frequency | Amplitude ±（% of reading + % of full scale） |
Phase |
|---|---|---|
| DC | 0.03% + 0.05% | – |
| DC < f < 30 Hz | 0.2% + 0.1% | ±0.1° |
| 30 Hz ≤ f < 45 Hz | 0.1% + 0.1% | ±0.1° |
| 45 Hz ≤ f ≤ 66 Hz | 0.02% + 0.02% | ±0.06° |
| 66 Hz < f ≤ 100 Hz | 0.1% + 0.02% | ±0.12° |
| 100 Hz < f ≤ 1 kHz | 0.1% + 0.02% | ±0.2° |
| 1 kHz < f ≤ 5 kHz | 0.15% + 0.02% | ±0.4° |
| 5 kHz < f ≤ 50 kHz | 0.15% + 0.02% | ±(0.08 × f kHZ)° |
| 50 kHz < f ≤ 100 kHz | 0.5% + 0.02% | ±(0.08 × f kHZ)° |
| 100 kHz < f ≤ 300 kHz | 1.5% + 0.5% | ±(0.08 × f kHZ)° |
| 300 kHz < f ≤ 1 MHz | 5.0% + 0.5% | ±(0.08 × f kHZ)° |
| Frequency band | 4 MHz（-3 dB Typical） | – |
