Friday, August 14, 2026

TEST-901D PROTECTIVE RELAY PRIMARY INJECTION EQUIPMENT

TEST-901D is a specialized primary injection test instrument designed for the precise testing and validation of protective relay systems. It delivers stable 1000A high-current output to simulate realistic fault conditions, enabling accurate assessment of relay tripping logic, response time, and overall protection performance. Integrated with advanced control technology and a user-friendly interface, it also supports comprehensive CT ratio and polarity verification, ensuring reliable alignment between relay settings and current transformers. Equipped with built-in data logging and safety features, this equipment streamlines relay commissioning and maintenance workflows, making it an essential tool for ensuring power grid safety and reliability.

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


Thursday, August 13, 2026

T-3630 | DC Current Test with GF6018A

The GFUVE T-3630 performs DC current testing as part of its comprehensive electrical measurement capabilities. In this demonstration, the GF6018A Multifunction Calibrator is used as the test power source, providing a controlled DC current input for the T-3630.

This test setup helps verify the T-3630's measurement performance and demonstrates a practical connection method for professional electrical testing. It is suitable for laboratory verification, equipment testing, calibration, and field applications.

🔗 T-3630 Product Details: https://www.gfuvegroup.com/electrical-test-tool/hv-insulation-resistance-tester.html

#T-3630 #DCCurrentTest #GF6018A #InsulationResistanceTester #ElectricalTesting #HighVoltageTester #Megohmmeter #ElectricalTestEquipment #DCVoltage #TestEquipment #ElectricalMeasurement #PowerTesting



Wednesday, August 12, 2026

AC Test Function Operation of TEST-630 Microcomputer Protection Relay Tester

 The GFUVE TEST-630 provides comprehensive AC test operation functions, serving as the core secondary injection testing solution for power system protection relays. It delivers standard and fault-state AC signals to fully verify relay operating performance and protection logic.

Adopting high-precision 6U6I synchronous AC output, the tester supports flexible adjustment of voltage, current, phase angle and frequency. It can simulate normal operating conditions, phase faults, ground faults and unbalanced three-phase states, covering almost all AC fault scenarios in power grids.

With high-sensitivity binary input channels, the device stably captures relay tripping, closing and state switching signals during AC testing. It accurately measures operating time, action thresholds and logical response to ensure consistent and reliable protection behavior under various AC working conditions.

Widely applied in substation commissioning, power system maintenance and laboratory relay calibration, the AC test operation ensures all AC-based protection functions operate accurately, laying a solid foundation for safe and stable power grid operation.

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

#GFUVE #TEST630 #SixPhaseRelayTester #ACTestOperation #ACSignalTesting #SecondaryInjectionTester #PowerGridProtection #SubstationCommissioning


TEST-330B | DC Test | Protection Relay Testing

Discover how the TEST-330B Three Phase Secondary Current Injection Test Set supports reliable DC testing for professional protection relay applications.

This demonstration focuses on the DC test process, showing how TEST-330B provides controlled testing conditions to help engineers verify relay operation, analyze protection characteristics, and improve the accuracy of commissioning procedures.

Designed for power system professionals, TEST-330B offers a practical testing platform for substations, utilities, and industrial electrical networks where dependable protection performance is essential.

Explore DC protection relay testing with TEST-330B and experience a smarter approach to relay verification.

Product Details:

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

#TEST330B #DCTest #ProtectionRelayTesting #RelayTester #SecondaryInjectionTest #ElectricalTesting #PowerSystemTesting #SubstationTesting #RelayProtection #PowerEngineering #ElectricalEquipment #Commissioning


Tuesday, August 11, 2026

GF112D Wireless Printing for On-site Test Data

The GF112D supports Bluetooth wireless printing to output test data instantly at inspection sites. Once single-phase meter verification, harmonic detection and power parameter testing are completed, technicians can connect to a portable printer wirelessly and obtain tangible test reports right on location.

No wired connection is needed, eliminating messy cables and improving mobility during field work. Printed records contain complete test information for filing and on-site communication with customers. Combined with USB data export, wireless printing delivers a full set of data output solutions to boost efficiency for power metrology field crews.

https://www.gfuvegroup.com/energy-meter-test-equipment/single-phase-electricity-meter-tester.html

#GF112D #WirelessPrinting #OnSiteTestReport #SinglePhaseMeterTester #GFUVE



GF112V2 | Visualize & Record Electrical Waveforms

See electrical conditions beyond numerical readings. GF112V2 allows engineers to visualize voltage and current waveforms in real time and record waveform data for further review.

Waveform recording helps identify abnormal fluctuations, distortion, and changes in electrical conditions during field testing. Engineers can capture important waveform information and use the recorded data for troubleshooting and technical analysis.

A practical solution for visual electrical measurement and on-site diagnostics.

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

#GF112V2 #WaveformRecording #WaveformAnalysis #ElectricalWaveform #PowerQuality #ElectricalTesting #EnergyMeterTesting #PowerAnalysis #FieldTesting #GFUVE



Sunday, August 9, 2026

GF112D Voltage & Current Waveform Recording

 The GF112D enables real-time capture and storage of voltage and current waveforms on single-phase power circuits. Technicians can visually observe waveform distortion, abnormal fluctuations and load anomalies directly on the local screen during field inspections. Recorded waveform files can be saved for offline analysis to trace hidden circuit faults and interference issues. Combined with meter verification capabilities, it integrates routine metering testing and power quality diagnosis into one handheld unit, eliminating the need to prepare separate waveform recording devices for field work.

https://www.gfuvegroup.com/energy-meter-test-equipment/single-phase-electricity-meter-tester.html

#GF112D #WaveformRecording #VoltageCurrentAnalysis #PowerQualityTest #GFUVE