Monday, September 21, 2026

GF211D | Dual-Clamp Phase Meter Unboxing & Accessories Overview

Unbox the GFUVE GF211D Dual-Clamp Phase Meter and take a closer look at its standard accessories, all organized in a protective carrying case for convenient storage and transport between job sites.

The package includes the GF211D main unit, two 20A clamp CT sensors, two 1.5m insulated voltage test leads with alligator clips, an operation manual, and a factory calibration test certificate.

Weighing just 0.45kg, the GF211D features a 3.5-inch backlit color LCD, three current ranges (200mA, 2A, and 20A), and dual-channel voltage inputs up to 600V. With Class 0.5 accuracy, data hold, and storage for up to 500 readings, it supports phase measurement, transformer wiring inspection, CT differential protection testing, and leakage current detection.

Designed for field use, the GF211D meets IEC 61010 CAT III 600V safety requirements and supports convenient on-site testing without cutting wires.

Visit our official product page for technical details, operation tutorials, and product inquiries:

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

#GF211DUnboxing #DualClampPhaseTester #PortablePhaseMeter #PowerCommissioningTools #ElectricalTestInstruments #PhaseMeasurement #TransformerTesting #ElectricalTesting #GFUVE


Sunday, September 20, 2026

TEST-630 | Over-Frequency & Under-Frequency Protection Relay Testing

Accurate frequency protection testing is essential for maintaining power system stability, particularly in renewable energy installations. The GFUVE TEST-630 Six-Phase Microcomputer Protection Relay Tester provides dedicated testing functions for evaluating over-frequency and under-frequency relay protection.

In this demonstration, TEST-630 uses synchronized six-phase voltage and current outputs to simulate frequency variations, including frequency rise, frequency drop, and frequency drift. Operators can configure test parameters such as signal frequency, frequency change rate, and holding time through the instrument's front-panel controls.

With 8 binary input channels, the tester can capture relay trip and reset signals to help determine operating frequency thresholds and response times. These measurements support the evaluation of relay sensitivity, timing performance, and protection behavior.

TEST-630 is suitable for frequency protection testing during renewable energy commissioning, substation acceptance, and laboratory relay verification.

Website:

https://www.gfuvegroup.com/protection-relay-tester/six-phase-microcomputer-protection-relay-tester.html

#GFUVE #TEST630 #FrequencyProtectionTest #SixPhaseRelayTester #OverfrequencyTest #UnderfrequencyTest #SecondaryInjection #NewEnergyCommissioning #PowerGridTesting #RelayProtection #ElectricalTesting


TEST-330B | Low Voltage Protection Test | High-Precision Relay Tester

 Precision and reliability are critical when verifying low voltage protection functions in modern power systems. The TEST-330B Three Phase Secondary Current Injection Test Set delivers a professional testing solution for engineers who need accurate evaluation of relay protection performance.

This demonstration highlights the low voltage protection test capability of TEST-330B, showing how the system helps verify relay operating characteristics, analyze protection settings, and evaluate response performance under low voltage conditions.

With stable signal output, precise control, and advanced relay testing functions, TEST-330B supports high-quality protection verification for substations, utilities, and industrial electrical applications.

Experience high-precision low voltage protection testing with TEST-330B and enhance the reliability of your power system testing process.

Product Details:

https://www.gfuvegroup.com/protection-relay-tester/three-phase-secondary-current-injection-test-set.html

#TEST330B #LowVoltageProtectionTest #HighPrecisionRelayTester #RelayTesting #ProtectionRelayTesting #SecondaryInjectionTest #ElectricalTesting #PowerSystemTesting #SubstationTesting #RelayProtection #PowerEngineering #TestEquipment


FU2200A | VA-Key Interface Operation and Testing

This demonstration introduces the VA-Key interface on the FU2200A and shows how to access and operate the related measurement functions.

With a clear interface and straightforward controls, the FU2200A allows users to navigate measurement information and check electrical parameters efficiently. The video provides a practical look at the VA-Key operation, making it easier for technicians to understand the meter's interface during daily testing.

Learn more about FU2200A:

https://www.gfuvegroup.com/ethernet-power-meter/ethernet-digital-power-meter-with-2m-data-logger.html

#FU2200A #VAKey #InterfaceOperation #PowerMeter #ElectricalMeasurement #PowerTesting #ThreePhasePower #ElectricalTesting #PowerMonitoring #GFUVE



Commercial Building Energy Audit Medium Jaw Full Test Set

Shopping mall, office and factory energy efficiency inspection mainly targets medium-diameter cabinet main cables, this matched medium jaw combo covers all mainstream commercial conductor sizes, unified calibration guarantees consistent multi-loop power consumption data. 10Hz–2MHz bandwidth detects air conditioner, lighting harmonic pollution, supports complete energy audit report data collection. Split-core quick clamp realizes live measurement without power cut, avoiding commercial operation losses during inspection. Durable shielded cables fit daily repeated use, lightweight classified carry case convenient cross-building patrol. Full international safety certifications, preferential bulk packages for energy audit service providers.

#BuildingPowerAudit #MediumJawKit #LoadMonitoring #EnergyAudit #CurrentClamp #PowerQuality #HarmonicAnalysis #ElectricalTesting #GFUVE

All medium jaw combo technical specs & custom matching schemes: https://www.gfuvegroup.com/current-probe.html



GF106 | Comprehensive Current Transformer Testing

 The GFUVE GF106 CT & PT Analyzer brings multiple current transformer testing functions together for a more efficient testing workflow.

From ratio and polarity verification to DC resistance, phase error, ratio error, and excitation characteristic testing, GF106 helps engineers examine different aspects of CT performance with one integrated instrument.

For protection CT applications, the analyzer can also support knee point evaluation and excitation curve analysis, providing valuable information about the magnetic characteristics of the transformer.

Whether used during commissioning, routine inspection, maintenance, or field diagnostics, GF106 offers a practical way to perform essential CT tests and review measurement results.

Discover GF106:

https://www.gfuvegroup.com/ct-pt-analyzer/ct-test-equipment-with-knee-point.html

#GF106 #CurrentTransformerTesting #CTTesting #CTAnalyzer #CTTestEquipment #CTRatioTesting #CTPolarityTesting #CTResistanceTest #CTExcitationTest #KneePointTest #TransformerTesting #ProtectionCT #SubstationTesting #PowerEngineering #GFUVE


GF112V2 | Export Test Results with Ease

Testing does not end when the measurement is complete. GF112V2 provides convenient test data export, allowing engineers to transfer recorded results for further analysis, documentation, and reporting.

After completing an energy meter verification task, test records can be exported for easier data review and long-term reference. This helps connect on-site measurement with subsequent reporting and technical evaluation.

A practical workflow for efficient energy meter testing and data management.

🔗 Product Details: https://www.gfuvegroup.com/energy-meter-test-equipment/handheld-single-phase-energy-meter-tester.html

#GF112V2 #TestDataExport #EnergyMeterTesting #MeterTesting #MeterVerification #TestResults #ElectricalTesting #DataManagement #FieldTesting #GFUVE