GF302D1 – Smart Testing with Automated Reporting

GF302D1 is not just a meter tester—it’s a complete testing solution. The device supports automated test sequences, programmable settings, and PC connectivity for advanced control. Test results are recorded and automatically compiled into professional reports, saving engineers valuable time while ensuring traceable, accurate documentation. Perfect for utilities, labs, and industrial clients who need both speed and precision in energy meter verification.

GF211D Voltage Wiring Connection Step-by-Step Demonstration

Every set of GF211D phase meter is supplied with standard voltage connection accessories tailored for multi-scenario voltage measurement demands. The 1.5m extended voltage cables facilitate wiring in deep, narrow control cabinets, and the clip opening size adapts to standard terminal blocks of power equipment. Clear marking on each voltage lead corresponds to U1, U2 and COM terminals of the host, guiding users to finish standard wiring for single-phase voltage detection, two-channel phase comparison and three-phase sequence judgment. The voltage input circuit maintains stable 0.5-class measurement precision after correct wiring, and the ultra-high input impedance design avoids load effect distortion on weak secondary voltage signals. For power factor and load characteristic testing, voltage lines connect U1-COM while current clamps match I channels, realizing synchronous acquisition of voltage and current signals to judge inductive or capacitive loads. All voltage connection accessories are subject to factory withstand voltage testing, matching the whole machine's wide temperature adaptability from -10℃ to +50℃ for long-term outdoor and indoor wiring testing.

Browse complete accessory packing list and wiring tutorials on our official product page:

https://www.gfuvegroup.com/protection-relay-tester/600v-20a-intellignet-digital-phase-angle-meter.html

#PortablePhaseMeter #VoltageConnection #LiveLineTest #IndustrialTestEquipment #GFUVEInstrument

GF312V2 User Information Parameter Input and Data Saving

The GF312V2 User Information Parameter Input and Data Saving function enables operators to conveniently enter customized test parameters and securely store calibration data during energy meter testing procedures. This feature supports efficient configuration of user-specific settings, ensuring that each test session is accurately recorded and traceable. By saving operational data in real time, it helps reduce manual recording errors and improves overall workflow organization. It is particularly useful for field engineers and metrology personnel who require consistent data management and reliable documentation in power measurement applications.

GF302D1 – Fast, Reliable, and Portable Meter Testing

Designed for engineers on the move, the GF302D1 combines portability with professional-grade testing capabilities. It operates independently without the need for an external PC, offering automatic and manual test modes. Whether performing energy meter calibration at substations, industrial sites, or utility networks, the GF302D1 streamlines testing workflows, reduces downtime, and guarantees high accuracy, making field inspections faster, safer, and more reliable.

Calibration of GF312V2 Energy Meter Calibrator | GF333V2 Reference Standard Meter with GF302D1 Three-Phase Power Source

 We used the GF302D1 portable three-phase tester as the standard three-phase power source.

In this test, we used the GF333V2 high-precision three-phase reference standard meter to calibrate the error of the GF312V2 portable field energy meter calibrator.

The GF333V2 high-precision three-phase reference standard meter has an accuracy class of 0.01/0.02. It supports full-range voltage and current measurements, harmonic analysis from the 2nd to the 63rd harmonic, vector diagrams, and waveform display, providing traceable, ultra-precise power data that serves as an authoritative calibration reference.

All equipment complies with IEC, CNAS, and CE standards.

For more details, please visit our official website: https://www.gfuvegroup.com

GF211D Phase Meter Practical Usage & Test Result Display

Watch the all-scenario operation showcase of portable GF211D digital phase angle meter, covering daily maintenance work for power plants, transformer factories and metallurgical enterprises. The simplified operation logic lowers the learning threshold for new technicians — no complex calibration is needed before testing. Two matched large-opening clamps easily clip thin secondary wires in dense terminal boxes, and durable alligator clips guarantee stable voltage signal contact under vibration. Besides core phase measurement, it acts as a standalone leakage tester relying on 0.1mA ultra-fine current resolution to track hidden insulation defects. The built-in lithium battery offers long continuous working hours for all-day outdoor patrols, and the shockproof portable bag protects all accessories during frequent transportation. Every operation step shown in this showcase follows standard power testing specifications to ensure accurate, repeatable measuring outcomes in all field environments.

Browse full product introduction and bulk order information on our official page:

https://www.gfuvegroup.com/protection-relay-tester/600v-20a-intellignet-digital-phase-angle-meter.html

#PortablePhaseMeter #LiveLineTesting #PowerCalibrationTool #GFUVEInstrument #MultiFunctionTester

Error Testing of the GF312V2 Three-phase Four-wire Electronic Pay-as-you-go Active Energy Meter

The Error Testing of the GF312V2 Three-phase Four-wire Electronic Pay-as-you-go Active Energy Meter provides a precise method for evaluating meter accuracy under real operating conditions. This function enables technicians to detect measurement deviations, verify calibration compliance, and ensure reliable performance of prepaid energy meters. Designed for both field and laboratory use, it supports detailed analysis of electrical parameters, load response, and billing accuracy. By streamlining the error detection process, this feature helps utilities and metering professionals maintain energy measurement integrity and improve the reliability of pay-as-you-go systems.

GF302D1 Portable Three-phase Energy Meter Test Device | Certified Metrology Standard Source

 GF302D1 meets IEC, ANSI and China JJG/DLT global metering standards with CE & CNAS certification. Available in 0.02%/0.05%/0.1% accuracy grades, stable output ≤0.01%/120s and waveform distortion under 0.3%. It covers full wiring types from 1P2W to 3P4W, ideal for official metrology institute periodic verification and factory meter quality inspection. Wide ambient range -10℃~+50℃ adapts complicated lab & outdoor calibration environment.

TEST-901D PRECISION CURRENT TRANSFORMER CALIBRATION DEVICE

 TEST-901D delivers high-precision calibration and verification for current transformers, combining accurate ratio measurement, polarity detection, and 1000A primary current injection in one compact unit. It uses a 7-inch color touchscreen for clear data display and intuitive operation, with ±0.5% measurement accuracy to ensure reliable calibration results. Built-in thermal printer, USB data output, and complete overload, short-circuit and thermal protection make it ideal for on-site substation calibration, equipment inspection, and power system maintenance.

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

P8S High Harmonic Measurement Current Clamp φ8 Jaw Opening

 GFUVE P8S clamp‑on current transformer is a high‑precision AC current probe built with premium permalloy core, delivering accuracy up to 0.1% for professional measurement scenarios. It supports multiple ranges including 5A, 10A, 20A, 30A AC and offers ratios 1000:1, 2000:1, 2500:1 for flexible matching. With wide frequency response from 10Hz to 2MHz, low phase shift less than 10′, and CAT III 600V safety approval, this current clamp is ideal for on‑site energy meter calibration, power quality analysis, oscilloscope waveform capture, leakage current detection and CT secondary current monitoring. It features 8mm jaw opening, compact size, optional BNC / banana / audio connectors, and strong compatibility with multimeters, data loggers, recorders and power analyzers. CE, UL and CNAS certified, fully compliant with EN 61010 and IEC standards for industrial reliability.

GF312V2 Three Phase Meter Calibrator For Power Grid Inspection & Audit

 The GF312V2 Three Phase Meter Calibrator For Power Grid Inspection & Audit is a professional-grade portable instrument designed to support accurate verification and assessment of energy metering systems within power grid environments. It enables engineers to perform comprehensive inspections, including meter accuracy checks, load evaluation, and electrical parameter analysis under real operating conditions. With its multifunction capabilities and stable performance, the device helps improve the efficiency and reliability of grid auditing and metering supervision tasks. It is widely used in utility companies and inspection teams responsible for maintaining billing accuracy and system compliance.

#GF312V2 #PowerGridInspection #MeterCalibration #EnergyMeterTester #FieldAudit #ThreePhaseMeter #PowerSystemTesting #ElectricalMeasurement #UtilityInspection #GridMaintenance

T-3630 Insulation Resistance Tester for Transformer and Motor Testing

 The T-3630 Insulation Resistance Tester is a professional dedicated test instrument for insulation condition assessment of transformers and motors. It provides multiple high-voltage output levels from 250V up to 15kV, supports an ultra-wide insulation resistance range up to 50TΩ, and automatically calculates PI (Polarization Index) and DAR (Dielectric Absorption Ratio) to accurately identify insulation defects, moisture, and aging issues. With 3% high accuracy, strong anti-interference performance, and large output short-circuit current, it fully meets the strict test requirements of large transformers and high-voltage motors. This portable tester features IP65 rugged protection, backlight LCD display, 500-group data storage, USB communication, and rechargeable battery power, making it ideal for factory inspection, on-site maintenance, routine testing, and acceptance of transformers and motors in power systems, industrial plants, and electromechanical facilities.

For more information about our products, please visit our official website: https://www.gfuvegroup.com/electrical-test-tool/hv-insulation-resistance-tester.html

GF302D1 Portable Meter Tester | Compact Solution for Power Field Troubleshooting

Tailored for power grid field patrol, GF302D1 minimum weight only 8kg up to max 22kg with multi-range options:0~6A/12A/20A/50A/120A current,0~300/380/500/600V voltage. Real-time vector diagram identifies wrong wiring instantly, 2~63rd harmonic spectrum checks grid distortion. Built-in 500-group data storage plus USB export, no external PC needed for standalone auto test, drastically shorten field meter checking cycle.

GF2018 Power Load Recorder Ideal for Power Plant Daily Current Monitoring & Load Analysis

Tailored for power plants, the GF2018 wireless current recorder accurately collects real-time primary current data of power lines. It supports load profile collection and professional load characteristic analysis, helping power plant technicians grasp the operating status of power equipment in real time. The reliable performance and convenient operation make it a standard testing tool for daily operation and maintenance of power plants. https://www.gfuvegroup.com/ammeter-recorder/high-voltage-power-load-recorder-with-wireless-current-sensor.html

#PowerPlantEquipment #PlantCurrentMonitor #LoadProfileAnalysis #PowerStationTool #PlantMaintenance

GF333V2 Reference Meter – Check Equipment Firmware & Version Details

 Designed for full lifecycle equipment maintenance, the GF333V2 allows operators to view historical version records alongside current firmware information. With clear version data, users can trace equipment upgrades and judge whether the device meets the current test standard requirements. Paired with its durable metal casing and stable measuring performance, it serves as a reliable long-term working unit for metrology centers and electricity meter manufacturers.

For full product information, please visit our official website: https://www.gfuvegroup.com/power-&-energy-reference-standard/three-phase-multifunction-reference-standard-meter.html

#GF333V2 #EquipmentMaintenance #FirmwareRecord #MetrologyTool #ThreePhaseMeter

Quick Lookup of Hardware & Software Version on GF333V2 Standard Meter

 When performing phase vector calibration, the GF333V2 integrates visual display and precise measurement into one streamlined workflow. Operators can adjust test settings and monitor vector changes on the touch screen without extra auxiliary equipment. Its advanced temperature compensation technology prevents measurement drift caused by environmental shifts, guaranteeing the authenticity of phase vector results. Combined with the wide voltage and current measurement range, it adapts to diverse three-phase working conditions and serves as a trusted reference for R&D and routine calibration of electrical equipment.

For complete product details and technical parameters, please visit our official website: https://www.gfuvegroup.com/power-&-energy-reference-standard/three-phase-multifunction-reference-standard-meter.html

#GF333V2 #TouchOperation #PhaseDetection #WideRangeMeter #CalibrationInstrument

GF302D1 Three-phase Tester | PC Programmable Automatic Batch Calibration Equipment

 All-in-one integrated source & reference standard supports full auto batch meter testing via optional PC control software. Pre-set standard test points for start, creep, balance/unbalance error detection; configurable PF parameters from 0.25L to 0.8C automatically. Dual RS232+USB communication, pulse input up to 200KHz supports electronic & mechanical dual-type meters. Complete protective design against overload/short/open circuit for long-time continuous factory batch production testing.

GF312V2 Settings Guide – Changing the Unit of the Pulse Constant

 GF312V2 Settings Guide – Changing the Unit of the Pulse Constant

The GF312V2 Settings Guide – Changing the Unit of the Pulse Constant provides clear instructions for configuring the pulse constant parameters to ensure accurate energy measurement and calibration results. This function allows users to adjust the unit settings according to different metering standards and testing requirements, improving flexibility in field and laboratory applications. By correctly setting the pulse constant unit, technicians can achieve more precise synchronization between the calibrator and the energy meter under test. It helps enhance testing consistency, reduce configuration errors, and support efficient operation of the GF312V2 in various power metering scenarios.

GF106T6 One-Key Operation CT Testing Equipment

 The GF106T6 features intuitive one-key operation to simplify complex current transformer testing for all users. It automatically performs ratio, polarity, excitation, error, demagnetization, and winding resistance tests with minimal manual setup, greatly improving on-site efficiency. Designed with a 7-inch touch LCD for clear operation and display, it also supports 6-channel simultaneous testing, 10,000 groups of data storage, USB data export, and built-in printing. This easy-to-use, high-efficiency tester fully meets IEC, IEEE, and GB standards, making it ideal for substation commissioning, factory inspection, laboratory calibration, and daily power equipment maintenance.

Disassembling the GF2018 Current Logger with Insulated Rod Connector

Disassembling the GF2018 Current Logger with Insulated Rod Connector

This demonstration illustrates the standard disassembly procedure for the GF2018 logger equipped with an insulated rod connector. First, slowly rotate the rod body clockwise to loosen the connector, then gently lift the sensor away from the power cable. During normal disassembly, the sensor's electronic seal remains intact. The device can be connected to a computer via a 433 MHz wireless signal to download and view historical load data, and export it to Excel or PDF files. This is an indispensable operational guide for electrical maintenance teams and anti-theft inspectors. https://www.gfuvegroup.com/ammeter-recorder/high-voltage-power-load-recorder-with-wireless-current-sensor.html

#DismantlingGuide #LiveWork #433MHzWirelessTransmission #CurrentDataLogger #PowerTestingTools

TEST-901D INDUSTRIAL GRADE PRIMARY CURRENT INJECTION SYSTEM

TEST-901D INDUSTRIAL GRADE PRIMARY CURRENT INJECTION SYSTEM

TEST-901D is a robust, industrial-grade integrated test system designed for long-term, high-reliability operation in substation commissioning and power equipment verification. It provides stable 1000A high current output for primary injection tests, and supports high-precision CT ratio measurement, polarity detection, circuit breaker timing test and protective relay verification. Equipped with a 7-inch touch LCD, intelligent control system, built-in thermal printer and full dual protection, it features strong anti-interference ability, stable output and long service life, making it a professional solution for industrial power system testing and maintenance.

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 LC-100KV Portable Transformer Oil Dielectric Strength Tester

The GFUVE LC-100KV is a fully automatic, portable, and high-precision insulating oil breakdown voltage tester designed for mineral, ester, and silicon-based insulating liquids. Engineered for both laboratory accuracy and on-site durability, it delivers consistent and repeatable results under rigorous working conditions. Built on a digital microcomputer control system, the LC-100KV combines high measurement accuracy, strong anti-interference capability, and comprehensive safety protection—making it a reliable choice for power utilities, heavy industry, and mining operations worldwide.

Key Features          

• 0–100 kV stable output, maximum 100 KV

• ±1% voltage resolution and accuracy, voltage rise time accuracy: 2%

• 7-inch touch colour display for intuitive operation

• Transparent shielded lid for real-time visual observation

• Ultra-fast HV cut-off (<10 μs) for instant protection

• Over current, over voltage and short-circuit protection

• USB & RS232 communication ports

• Built-in 58 mm thermal printer for on-site reports

• Programmable test sequences

• Compliance with GB/T507-2002, DL429.9, IEC60156, ASTM D1816

• Wide operating temperature: -10 °C to 50 °C

 

Market Performance & South African Mining Application 

In South Africa’s mining industry, where operations face extreme heat, dust, humidity, and unstable power grids, the reliability of electrical infrastructure directly determines production efficiency and safety. Transformers are critical assets in mining power distribution, and the quality of insulating oil is essential to prevent breakdowns, fires, and costly unplanned shutdowns.

In this challenging environment, the GFUVE LC-100KV has gained wide recognition and positive feedback from South African gold, platinum, and coal mines. Local maintenance teams report that the LC-100KV performs exceptionally well in remote, dusty, and high-temperature mine sites, where many conventional testers suffer from inaccurate readings, slow response, or frequent failures.

Customer feedback consistently highlights:

• Outstanding stability under harsh complex working conditions

• Rugged build that resists vibration, dust and humidity for long-term on-site operation

• Easy operation for field technicians, reducing training time and operational costs

• Lab-grade accuracy for efficient on-site predictive maintenance

• Fast testing and integrated printing function, perfectly matching diverse shift-based operational workflows

Widely adopted as a standard insulating oil testing device by global power enterprises and industrial manufacturers, the LC-100KV empowers technical teams to efficiently detect insulating oil aging and insulation performance degradation at an early stage, effectively extending transformer service life and reducing overall operational and maintenance risks. Fully compliant with multiple international and industry authoritative standards, the tester delivers traceable, standardized and auditable test data, fully meeting daily quality control, routine detection and official regulatory inspection requirements for various industries.

Core Benefits

• Ensure transformer reliability and prevent sudden failures

• Minimize downtime through fast and accurate on-site testing

• Withstand harsh environments in mining, remote industry, and outdoor utilities

• Improve safety with comprehensive protection and fast fault response

• Simplify workflows with automatic operation and built-in reporting

• Meet global standards for consistent, recognized test results

Applications      

• Power plants & renewable energy stations

• Transformer manufacturers & electrical equipment factories

• Universities, research institutes & ISO17025 laboratories

• Insulating oil production and blending plants

• Electrical testing & calibration centers

• Power utilities, grid companies & electricity bureaus

• Railway electrical departments

• Mining industry (South Africa & Africa)

• Industrial and mining enterprise electrical maintenance

The GFUVE LC-100KV Portable Transformer Oil Dielectric Strength Tester represents a new standard in insulating oil testing—combining advanced technology, rugged reliability, and proven performance in the world’s toughest industrial environments. Trusted by mining operators in South Africa and recognized by clients globally, it delivers the precision, stability, and safety required for modern electrical asset management.

GFUVE OFFICIAL Website: www.gfuvegroup.com

CAT III 600V Clamp On Current Transformer P8S Low Phase Shift

High precision up to 0.1% ensures reliable and stable measurement data for daily and professional use.

Mini 8mm opening jaw, lightweight and portable, easy to operate in narrow working spaces.

Excellent frequency response and low phase deviation, ideal for oscilloscope and power analyzer matching.

Strictly certified to European safety standards, CAT III 600V insulation guarantees user safety.

Multiple connectors and ranges optional, flexible to meet various industrial current testing demands.

Can Your Meter Testing Be Faster and Smarter?

Choose the GF302D1 for faster, smarter, and more precise testing. With built-in reference sources, automated testing, harmonic analysis, and high-accuracy measurement, ensure every meter test is accurate and reliable.

Wiring Diagram for the GF312V2 Three-phase, Four-wire Electronic Active Energy Meter with Tariff Function

The Wiring Diagram for the GF312V2 Three-phase, Four-wire Electronic Active Energy Meter with Tariff Function provides clear guidance for correct installation and connection during field testing and calibration. It illustrates proper phase sequence, voltage and current input alignment, and terminal configuration to ensure accurate measurement of active energy under tariff-based metering conditions. By following the wiring reference, technicians can minimize connection errors, improve testing efficiency, and ensure reliable operation of the meter under evaluation. This guide is essential for supporting safe and standardized setup in utility and industrial power metering applications.

GF106T6: Professional Solution for Metering & Protection CTs

The GF106T6 delivers a dedicated, professional testing solution for metering‑class and protection‑class current transformers, fully complying with international IEEE and IEC standards. It performs complete verification of excitation characteristics, ratio, polarity, error curves, winding DC resistance and secondary load, while supporting 6‑channel simultaneous testing to boost efficiency. With 0.02% high measurement accuracy, automatic knee point detection, and automatic demagnetization, it ensures stable and reliable test data. The 7‑inch touch screen, large‑capacity data storage, USB report export and built‑in printer further enhance its practicality for power utilities, CT manufacturers, laboratories and on‑site commissioning work.

GF2018 Wireless Current Recorder, Easy Threading Installation & Removal for High Voltage Power Cables

The GF2018 high voltage power load recorder adopts a practical threading design for simple installation and uninstallation on power cables. Its open CT sensor with a maximum 3.3cm opening allows operators to thread the cable through the sensor easily in seconds. The electronic closing structure locks firmly after threading, ensuring stable attachment during long-term monitoring. Both installation and removal can be completed under live-line conditions without power cut, fully adapting to power lines up to 69kV. Made of ABS+PC composite material, the sensor is waterproof, shockproof and flame retardant, working reliably from -40°C to 60°C. After unloading, you can use the matched PC-Link software to download, analyze and export recorded current data to Excel and PDF files. https://www.gfuvegroup.com/ammeter-recorder/high-voltage-power-load-recorder-with-wireless-current-sensor.html

#GF2018 #ThreadingInstallation #CableThreading #OpenCTSensor #LiveLineRecorder

T-3630 HV Insulation Resistance Tester 0–50TΩ 15kV

 The T-3630 HV Insulation Resistance Tester with an exceptional measurement range of 0–50TΩ and an impressive output voltage of 15kV is the ultimate solution for demanding high-voltage insulation testing applications. This professional megohmmeter delivers unparalleled accuracy and stability across its ultra-wide resistance scale, making it suitable for transformers, power cables, generators, motors, and switchgear. Equipped with advanced features including PI (Polarization Index) and DAR (Dielectric Absorption Ratio) calculations, a large backlight LCD, USB data download, and an IP65 ruggedized design, the T-3630 ensures safe, reliable, and efficient insulation diagnostics for power utilities, industrial maintenance, and electrical engineering projects.

For more information about our products, please visit our official website: https://www.gfuvegroup.com/electrical-test-tool/hv-insulation-resistance-tester.html

TEST-901D CT Ratio and Polarity Testing Instrument

 TEST-901D is a portable 1000A primary current injection test set, specially used for CT ratio measurement, polarity test and primary current injection test of current transformers, protection relays and circuit breakers in substation commissioning. It adopts ARM control, equipped with 7-inch TFT color touch LCD, high-precision measurement and built-in thermal printer, can display primary/secondary current, ratio, polarity and action time in real time, with USB communication and complete over-temperature, short-circuit and overload protection. The instrument is compact, light weight 20kg, easy for on-site operation, widely used in power system commissioning and maintenance.

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

Field & Laboratory CT Tester – GF106T6

 The GF106T6 is a versatile current transformer tester designed for both field maintenance and laboratory calibration scenarios. It supports full‑featured testing of measurement, protection and TYP‑class CTs, with 6‑channel simultaneous testing to improve efficiency. It offers wide measurement range, high precision, automatic demagnetization, and complete excitation and error analysis. The portable and rugged design, combined with a 7‑inch touch screen, data storage, USB export and on‑site printing, makes it suitable for outdoor substation work, factory inspection, and laboratory precision verification.

Error Testing of the GF312V2 Single-Phase Electricity Meter

 The Error Testing of the GF312V2 Single-Phase Electricity Meter provides a reliable and efficient solution for evaluating the accuracy performance of single-phase energy meters in field and laboratory environments. Designed to detect measurement deviations with high precision, it enables technicians to quickly identify calibration errors and verify meter compliance with required standards. The system supports stable and repeatable testing procedures, making it suitable for routine inspection, quality control, and maintenance tasks. Its practical design ensures ease of use, helping improve testing efficiency while maintaining measurement integrity in power metering applications.

GF302D1 Energy Meter Calibration Device – Comprehensive Function Display

The GF302D1 is a portable three-phase energy meter calibration device designed to deliver professional-grade testing and calibration for all types of energy meters. Its comprehensive functions allow engineers to perform accurate measurements and verification in both laboratory and field environments.

Key Features & Functions:

1. Three-Phase & Single-Phase Testing: Supports 1P2W, 1P3W, 3P3W, and 3P4W configurations, providing versatile options for various energy meters.

2. High-Precision Calibration: Integrated electronic reference source ensures 0.02 class accuracy, guaranteeing reliable and repeatable results.

3. Standard Voltage & Current Output: Outputs stable, traceable single-phase and three-phase reference signals for meter verification.

4. Harmonic Analysis & Simulation: Supports 2nd to 63rd-order voltage and current harmonic output, enabling performance evaluation under distorted or non-ideal conditions.

5. Automatic & Manual Testing Modes: Flexible operation allows fully automated test sequences or manual adjustments for customized testing.

6. Data Recording & Report Generation: Built-in storage and USB/PC connectivity enable data logging, real-time monitoring, and automatic generation of professional test reports.

7. User-Friendly Interface: Large touchscreen display and dedicated function keys simplify parameter setting, waveform monitoring, and operational guidance.

8. Phase Detection & Load Control: Ensures correct wiring and safe operation while testing under varying load conditions.

The GF302D1 combines precision, versatility, and portability in one device. Its comprehensive functions, from voltage/current output to harmonic analysis and automated reporting, make it ideal for utilities, calibration labs, industrial testing, and field inspection teams who demand reliability and efficiency in energy meter calibration.

P8S AC Current Probe 10Hz-2MHz Wide Bandwidth For Power Analyzer

Adopts high-performance permalloy core, achieves class 0.1 high accuracy with tiny measurement error.

8mm small jaw design, suitable for thin wires, supports non-invasive testing without wire cutting.

Wide frequency range 10Hz to 2MHz and low phase shift, perfect for harmonic and waveform detection.

Complies with European standards & IEC/EN61010, CAT III 600V safety rating for industrial use.

Multiple current ranges and transformation ratios available, widely used for meter calibration and power monitoring.

 

GF302D1 Energy Meter Calibration Device – Single-Phase Electronic Energy Meter Testing

The GF302D1 is a high-precision portable three-phase energy meter calibration device, designed to provide reliable power supply and testing for single-phase electronic energy meters. Its integrated standard voltage and current sources deliver stable, traceable reference signals, enabling engineers to accurately verify energy meters' performance and detect measurement errors.

Key Features for Single-Phase Electronic Meters:

1. Stable Voltage and Current Supply: Provides precise and consistent single-phase output, ensuring accurate calibration of electronic meters under real operating conditions.

2. High-Precision Measurement: 0.02 class accuracy guarantees trustworthy readings for meter verification, including energy, voltage, current, power factor, and phase angle measurements.

3. Automatic and Manual Test Modes: Engineers can choose fully automated sequences or manually adjust parameters for customized tests on different meter types.

4. Harmonic Simulation: Supports 2nd to 63rd order voltage and current harmonics, allowing evaluation of meter performance under distorted electrical conditions.

5. Data Logging and Reporting: Built-in memory and USB/PC connectivity allow easy recording of test results and generation of professional reports.

6. User-Friendly Interface: Large touchscreen combined with function keys simplifies setup, monitoring, and operation, even for field inspections.

Applications:

GF302D1 is ideal for utility companies, calibration labs, and industrial sites requiring precise testing of single-phase electronic energy meters. It ensures that meters operate accurately, safely, and reliably under real-world electrical conditions.

GFUVE Enhances Power Quality Monitoring with Advanced Split Core Current Transformer

BEIJING, China – BEIJING GFUVE ELECTRONICS CO., LTD., a leading manufacturer of electrical measurement devices, has successfully deployed its LZCK-80 Split Core Current Transformer to support industrial power monitoring applications across Southeast Asia. This deployment underscores GFUVE's commitment to delivering cost‑effective, high‑performance solutions for retrofitting and energy management systems.

The LZCK-80 is a split core current transformer designed for easy installation without interrupting existing power lines. Its hinged construction allows rapid attachment around busbars or insulated cables, making it ideal for retrofitting legacy panels and portable monitoring equipment. The transformer provides accurate current sensing over a wide dynamic range, supporting both metering and protection functions.

Key features include a compact housing that fits space‑constrained cabinets, high immunity to external interference, and stable performance under varying load conditions. The LZCK-80 interfaces seamlessly with power analyzers, data loggers, and energy management software via standard analog outputs, enabling real-time current monitoring, demand analysis, and fault detection.

"We selected GFUVE's split core transformer for its ease of use and measurement stability in our retrofit projects," said a technical manager from a regional system integrator. "The LZCK-80 significantly reduces installation downtime while delivering reliable data for our energy efficiency programs."

About BEIJING GFUVE ELECTRONICS CO., LTD.

GFUVE specializes in the design and manufacture of high‑quality power meters, current transformers, and electrical measurement instruments. The company is recognized for offering exceptional functionality, accuracy, and value across its product portfolio.

Media Contact:

GFUVE GROUP

Tel: +0086 10 85782698

Email：sales@gfuve.com  

GF302D1 Energy Meter Tester – Single-Phase Reference Voltage and Current Output

 The GF302D1 is a high-precision, portable three-phase energy meter tester capable of generating single-phase reference voltage and current, providing stable and traceable signals for accurate meter calibration and verification. Equipped with an integrated electronic reference source, it achieves Class 0.02 measurement accuracy, allowing engineers to perform precise calibration, error analysis, and performance assessment for a wide range of energy meters.

Key Features:

1. Stable Reference Output: Provides consistent and accurate single-phase voltage and current signals for reliable meter testing and calibration.

2. Versatile Load Support: Compatible with multiple load scenarios and wiring configurations (1P2W, 1P3W, 3P3W, 3P4W), making it ideal for both lab and field environments.

3. High Accuracy and Reliability: Class 0.02 precision ensures repeatable and trustworthy measurements under various operating conditions.

4. Harmonic Simulation: Capable of generating voltage and current harmonics to evaluate meter performance under non-ideal or distorted electrical conditions.

5. Intuitive User Interface: Large touchscreen display and dedicated function keys allow engineers to quickly set parameters, observe waveforms, and log test data efficiently.

With its ability to supply single-phase reference voltage and current, the GF302D1 is a reliable and professional solution for energy meter calibration, testing, and verification, offering portability, accuracy, and full-featured performance. It is well-suited for utility companies, calibration laboratories, and industrial testing teams.