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.

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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.