Verivolt IsoBlock V-3P | Three-Phase Voltage Sensor
Measures three-phase voltages with galvanic isolation and routes the signals to the DAQ in one bundle – reducing wiring in compact test setups.
- ✓ Input Voltage: 150–1000 VAC
- ✓ Bandwidth: up to 100 kHz
- ✓ Accuracy: up to 0.1%
- ✓ Channels: 4
Verivolt IsoBlock V-3P – Galvanically Isolated Differential Voltage Sensor
Four-Channel Three-Phase Voltage Measurement up to 1000 VAC
The Verivolt IsoBlock V-3P Series is designed for galvanically isolated voltage measurements in three-phase systems. Depending on the version, the four-channel differential voltage sensor covers input measurement ranges from 150 VAC to 1000 VAC. The bandwidth is up to 100 kHz, with accuracy of up to 0.1% depending on the version.
Measure Phase-to-Phase and Phase-to-Neutral Voltages
The IsoBlock V-3P measures voltages in three-phase systems including the neutral conductor. In a delta configuration, phase-to-phase voltages can be output; in a star or wye configuration, phase-to-neutral voltages can be output. This makes the three-phase voltage sensor suitable for multi-channel voltage measurement in electrical three-phase systems.
Galvanic Isolation for Differential Voltage Measurements
Each channel provides galvanic isolation between input and output as well as its own isolated reference. This helps decouple high common-mode voltages from the downstream measurement system. Common-mode rejection is 112 dB at 60 Hz. An input protection stage also protects the sensor against transient overvoltages.
Scaled Output Signal for DAQ Systems
The IsoBlock V-3P operates as a differential divider network and generates a 7 VAC scaled version of the input signal. An anti-aliasing filter is integrated into the signal conditioning stage. The differential output signal can then be processed by suitable data acquisition systems and DAQs.
Additional galvanically isolated voltage and current sensors are available in the Transducers product category.
Welche IsoBlock V-3P-Variante passt zu Ihrer Messaufgabe?
Messbereich, Genauigkeit und Einbindung in das Datenerfassungssystem bestimmen die passende Konfiguration. Wir unterstützen Sie bei der Auswahl des geeigneten IsoBlock V-3P für Ihre Dreiphasen- und Differenzspannungsmessung.
Variants
Specifications
| Input Measurement Ranges | ±150 VAC, ±250 VAC, ±500 VAC, ±700 VAC or ±1000 VAC |
|---|---|
| Channels | 4 |
| Galvanic Isolation | 3-way isolation |
| Accuracy | ±(0.2% of reading + 0.005% of range) or ±(0.1% of reading + 0.005% of range) |
| Bandwidth (-3 dB) | DC to 100 kHz |
| Common-Mode Rejection at 60 Hz | 112 dB |
| Primary-to-Secondary Isolation Voltage | > ±1500 V |
| Maximum Common-Mode Transient Voltage | 5000 V for 1 minute |
| Maximum Differential-Mode Transient Voltage | 2000 V at 65 °C |
| Output Voltage | 7 VAC |
| Output | Differential signal pair |
| Differential Divider Network | With anti-aliasing filter at the output and a scaled 7 VAC output signal |
| Isolated Reference | Separate isolated reference for each input channel |
| Differential Input Impedance | 8 MΩ |
| Input-to-Output Non-Linearity | < 0.04% |
| Maximum Phase Shift at 60 Hz | < 0.05° |
| Maximum Through Delay | 3.8 µs |
| Insulation Impedance | > 10 GΩ || 2 pF |
| Output Impedance | 20 Ω |
| Supply Voltage | 12 to 28 V |
| Connection Type | Spring-cage terminals |
| Mounting | DIN rail |
| Operating Temperature | -25 to 70 °C |
| Storage Temperature | -40 to 80 °C |
| Weight | 198 g |
| Plug-and-Play | Easy reconfiguration for different measurement tasks |
Options & Accessories
| NIST calibration for accuracy |
Scope of Delivery
| IsoBlock V-3P Series unit(s) |
Applications
| Three-Phase Power Monitoring | Voltage measurement in three-phase systems |
|---|---|
| Grid-Tied Inverter Testing | Galvanically isolated measurement of three-phase input and output voltages |
| Motor Drive Measurements | Voltage measurement at the inputs and outputs of frequency converters and motor drives |
| Power Quality Analysis | Measurement of three-phase voltages for power quality testing |
| Delta and Wye Systems | Phase-to-phase measurements in delta configurations and phase-to-neutral measurements in wye configurations |
| DAQ-Based Measurement Systems and Test Benches | Transfer of differential output signals to computer-based data acquisition systems |
Links & Downloads
Available Documents (Subject to Change)
Supplier
Verivolt is an American manufacturer of current transformers, voltage transformers, power transformers and filters, with the specialty of very high galvanic isolation of 1kV and above.
Many of the products can be used directly for DIN or top hat rail mounting.
The range of values varies from small currents in the mA range up to 2kA, and isolation of 5kV between input and output with bandwidths >1MHz.
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