TEST-901D Primary Current Injection Test Device with High Output

 The TEST-901D is a high-performance all-in-one testing unit, capable of delivering a maximum output current of 1000A. It is professionally developed for primary current injection testing in power system applications.

This instrument supports accurate current measurement, CT ratio and polarity checking, circuit breaker time testing, as well as relay performance verification. It is fitted with a 7-inch color touchscreen, an integrated thermal printer, high-stability output circuitry and comprehensive protection functions.

With a compact footprint, lightweight design and user-friendly operation, the TEST-901D serves as an ideal testing solution for substation commissioning, daily equipment maintenance and factory acceptance tests.

For more information about our products, please visit our official website: https://www.gfuvegroup.com/primary-injection-test-equipment/1000A-primary-current-injection-test-equipment.html

GFUVE Handheld Phase Angle & Voltage Meter – 3.5 Inch Color Screen

 Equipped with a high-brightness 3.5-inch color LCD screen, this GFUVE digital phase angle voltmeter presents sharp and legible measurement data, perfectly visible even in dim outdoor working conditions. It integrates the functions of a voltmeter, ammeter, phase angle meter and power parameter tester into a compact handheld device, enabling 0–360.0° full-range phase measurement among dual voltage, dual current, and voltage-current signals.

It adopts two clamp sensors to realize non-contact current sampling, allowing safe live-line inspection without cutting off any wiring. Built with high-precision circuitry, it achieves an accuracy of 0.5% for voltage, current, phase angle, frequency, active/reactive power and power factor. The large display intuitively shows vector diagrams, real-time measured values and analysis results, while built-in memory for 500 data groups facilitates on-site record keeping and subsequent data review.

Featuring a lightweight portable body, rechargeable battery supply and IEC safety certification, this all-in-one measuring instrument is an optimal choice for substation maintenance, power engineering projects, industrial electrical checks and field fault diagnosis.

GF106T6 0.02% High Accuracy Current Transformer Analyzer

The GF106T6 is a high-accuracy multi-ratio current transformer analyzer developed for professional CT testing. Boasting a precision level as high as 0.02%, it provides stable and highly repeatable test results for CT transformation ratio, polarity, ratio & phase error, excitation properties, knee point voltage, and secondary winding resistance.

The device supports simultaneous testing of up to 6 CT units. Equipped with a 7-inch touch LCD screen, automatic error computation, onboard data storage and integrated printing function, it balances outstanding precision with simple operation. Fully compliant with IEC, IEEE and GB international standards, this professional CT testing instrument is perfectly suited for laboratory calibration, factory routine inspection and substation commissioning projects.

 

GF106T Portable CT/PT Analyzer for Substation Commissioning

 The GF106T is a portable, all-in-one CT and PT analyzer engineered for substation commissioning, on-site verification and acceptance testing of current and voltage transformers. It integrates comprehensive test capabilities, including excitation characteristics, transformation ratio, polarity, error curves, secondary load and winding resistance, allowing engineers to perform full-range CT/PT testing efficiently in the field.

Featuring a 7-inch touchscreen display, an integrated thermal printer, USB data export and storage for up to 3,000 test records, the unit enables quick report generation and reliable data archiving. Its compact portable design, wide measurement range, high accuracy of 0.2%, and compliance with IEC and GB standards make it a dependable and indispensable instrument for substation commissioning, power system maintenance and field engineering projects.

GF312V2S Interface and Communication Configuration

 The GF312V2S is equipped with a practical and site-optimized interface layout, paired with a 7-inch 800×480 color TFT touch screen to deliver straightforward operation and crystal-clear data display.It comes fully built with mainstream communication interfaces such as USB, RS232 and Ethernet, with Bluetooth and Wi-Fi available as optional extras. This enables smooth data transmission, remote control via PC software, and convenient connection with mobile applications.

To accommodate meter calibration requirements, the unit is fitted with an intelligent optical sampling port, 3-channel pulse input and programmable pulse output, realizing precise synchronization with connected energy meters. It can also be easily linked with external printers, external keyboards and a wide range of clamp-on current transformers, allowing highly flexible on-site deployment.

All onboard interfaces adopt high-isolation design and comply with CAT III 600V safety rating, delivering reliable operation and enhanced safety even in complex and harsh field conditions.

Industrial-Grade GF208D AC/DC Clamp Meter for On-site Electrical Testing

 The GF208D is a heavy-duty industrial AC/DC clamp meter built for versatile and reliable on-site electrical measurement. Supporting up to 1000V and 1000A measurement range, this handheld meter integrates abundant practical testing functions to simplify daily electrical maintenance. It is equipped with inrush current capture, non-contact voltage detection (NCV), data hold and auto-ranging functions for efficient one-key operation. Featuring LoZ low-impedance mode and LPF low-pass filtering, it effectively eliminates ghost voltage and filters inverter interference to ensure precise readings in complex power environments. With an intuitive LCD screen and built-in flashlight, the GF208D guarantees clear visibility even in dim working conditions. Additional temperature measurement and data storage further enhance its usability, making it an ideal portable measuring tool for industrial inspection, circuit debugging and field maintenance.

GF211D Dual-Channel Digital Phase Angle Meter – Wiring Instructions

The GF211D digital phase angle meter is engineered for safe, convenient, and high-reliability on-site phase measurement. Designed with dual voltage input terminals (U1, U2) and dual clamp current inputs (I1, I2), the instrument enables live-line testing without cable stripping or power shutdown, ensuring efficient and non-destructive field wiring.

It supports three mainstream wiring measurement modes: voltage-to-voltage phase testing, current-to-current phase testing, and voltage-to-current phase testing, covering most conventional power inspection scenarios. With clearly marked terminals, quick-connect cables, and non-contact current clamps, the device simplifies wiring procedures while lowering operational risks.

Integrated with automatic phase recognition, a high-definition LCD display, and reliable overload protection, the GF211D delivers stable and repeatable test data with minimal manual intervention. Even operators with limited experience can complete accurate phase detection effortlessly. Ideal for substation relay commissioning, transformer wiring verification, and industrial electrical maintenance, this phase angle meter serves as a practical and dependable tool for daily power field testing.