In modern power systems, reactive power compensation equipment testing requires both laboratory-grade accuracy and field-ready portability. Traditional solutions often struggle to balance precision, usability, and operational flexibility across different environments.
The VS Series Three-Phase Capacitor & Inductor Tester is designed to address these requirements by combining high-accuracy measurement capabilities with portable operation and flexible power options. It is suitable for laboratory calibration, production testing, and field maintenance of capacitor banks and reactors.
The instrument is equipped with a 7-inch high-brightness color touchscreen, providing a graphical and guided user interface for field and laboratory operation.
The interface is designed to simplify multi-step three-phase testing procedures, helping reduce operator training requirements and minimizing configuration errors during complex measurements.
The system supports non-disconnection testing of three-phase capacitor banks, compatible with Y, Δ, and YN configurations.
A single connection setup enables complete three-phase parameter acquisition, reducing rewiring requirements and helping to improve overall testing efficiency in both field and workshop environments.
The instrument uses a 55Hz excitation source to reduce the influence of 50Hz power-frequency interference commonly present in substations and industrial facilities.
Combined with digital control and PID-based regulation, the system provides constant-current and voltage-limited output, improving measurement stability under high electromagnetic interference conditions.
The VS Series supports both wired and wireless communication:
- RS232 serial interface for PC-based control and system integration
- Bluetooth interface for wireless data transfer
- USB storage export for offline data handling
- Internal memory supporting up to 512 test records
These options enable integration with laboratory software systems and enterprise data management platforms.
The instrument supports two operating power modes:
- AC 220V mains supply for laboratory and continuous operation
- Optional built-in lithium battery for field applications
This design allows the same instrument to be used across laboratory calibration environments and field maintenance scenarios.
| Parameter | Range | Accuracy |
|---|---|---|
| Capacitance | 0.1 μF – 6800 μF | ±(1% rdg + 0.01 μF) |
| Inductance | 100 μH – 20 H | ±(2% rdg + 0.01 mH) |
| Current | 10 mA – 60 A | ±(1% rdg + 0.5 mA) |
| Resistance | 50 mΩ – 20 kΩ | ±(2% rdg + 1 mΩ) |
Additional Specifications:
- Resolution: 4-digit display
- Instrument dimensions: 330 × 280 × 150 mm
- Weight: approx. 3.6 kg
- Operating temperature: -10°C to +50°C
The system is suitable for high-precision calibration of standard capacitors and inductors in metrology environments.
It supports stable, repeatable measurements required for calibration workflows, and can interface with calibration software via RS232 for data acquisition and reporting.
Designed for continuous operation under AC power supply, it supports extended testing cycles in laboratory environments.
In manufacturing environments, the instrument supports fast and repeatable testing of capacitor and reactor products.
- Configurable test templates for multiple product types
- Fast measurement cycles for production throughput requirements
- USB and Bluetooth data export for MES integration
- Automatic alarm indication for out-of-tolerance results
These features support standardized quality control and traceability in production workflows.
The VS Series is designed for capacitor bank testing in substations and power distribution systems.
The 55Hz excitation method helps reduce power-frequency interference, while the non-intrusive testing method minimizes the need for disconnection of existing wiring.
Test data can be stored and exported for maintenance documentation and reporting purposes.
The instrument is suitable for commissioning of new power installations and acceptance testing of reactive power compensation systems.
Optional battery operation allows use in environments without mains power supply.
The system can automatically calculate three-phase imbalance and provide threshold alerts during testing.
The VS Series can also be used in electrical engineering laboratories for teaching and research purposes.
The touchscreen interface provides real-time visualization of measurement data, while built-in data export functions support post-processing and analysis.
The device is designed for repeated use in educational environments with enhanced protection against operator errors.
The VS Series Three-Phase Capacitor & Inductor Tester is designed to provide a balance between measurement accuracy, operational flexibility, and system integration capability.
It is suitable for applications ranging from laboratory calibration and industrial quality control to substation maintenance and field commissioning.
By combining multi-parameter measurement, dual power supply options, and flexible communication interfaces, the instrument supports a wide range of reactive power system testing requirements.
Product reference picture
