Class 0.5 GF211D Live Line Phase Measuring Device

This Class 0.5 certified live-line tester adopts isolated dual signal acquisition architecture to deliver stable phase readings while circuits stay energized without power shutdown. Its optimized anti-disturbance circuit suppresses electromagnetic interference generated by relays and inverters in dense control cabinets, securing accurate phase offset data for CT vector verification and wiring troubleshooting. The ergonomic handheld body paired with matched insulated clamps enables rapid on-site testing for grid acceptance and routine maintenance, with recorded test data retained permanently inside built-in memory for audit archives.

Full technical specs and live-line operation standards are available on our official page:

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

#GF211D #LiveLineTester #Class0.5PhaseMeter #SecondaryCircuitInspector #PowerCommissionTool

GF6018A AC Current Standard for Clamp Meter Test

 Equipped with built-in large-caliber current coils, the GF6018A serves as a professional AC current standard specially for clamp meter performance inspection. It outputs low-distortion standard AC current with adjustable magnitude and frequency, which can fully test measurement precision, linearity and response performance of different clamp meters. Featuring outstanding long-term output stability, this calibrator can support continuous batch testing for instrument factories and periodic verification tasks in metrology labs, delivering traceable and credible calibration results for all types of clamp meters.

Product page: https://www.gfuvegroup.com/electrical-calibrator/clamp-type-multimeter-calibrator.html

#GF6018A #ACCurrentStandard #ClampMeterTest #ElectricalCalibration #MetrologyEquipment

GF333V2 Reference Meter – Three-Phase Vector Diagram Verification

 Designed for rigorous phase vector calibration work, the GF333V2 covers a full 0° to 360° phase measurement range and pairs high precision with powerful data analysis capabilities. It can synchronously record vector status, waveform data and corresponding power parameters during tests, and supports data export via RS232 and USB ports for post-analysis and archiving. Adhering to IEC and ISO laboratory standards, this robust metal-bodied meter maintains consistent performance in long-duration vector verification, ideal for meter factories and metrology institutions.

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 #VectorCalibrator #ElectricalTesting #DataRecording #LabStandardMeter

GFUVE GF211D Dual Channel Phase Sequence Tester

 This dual-channel phase sequence tester independently collects two groups of line voltage signals to rapidly distinguish positive and reversed three-phase sequences without extra auxiliary testing gear. Its built-in vector rendering function visually presents 120° standard phase intervals, helping technicians avoid motor reverse rotation and transformer wiring faults during commissioning. The dual U1/U2 input ports support simultaneous comparison of primary and secondary side voltage phases of transformers, delivering consistent Class 0.5 precision across 45–65Hz grid frequency range. Compact handheld body and all-insulated test leads support all-day cabinet inspection tasks.

Check full phase sequence test operation tutorials via our official page:

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

#GFUVE #GF211D #PhaseSequenceTester #DualChannelMeter #TransformerWiringChecker

TEST-330B | Three Phase Secondary Current Injection Test Set | 0.1% Accuracy

Precision is the key to reliable protection relay verification. The TEST-330B Three Phase Secondary Current Injection Test Set combines high-accuracy performance, powerful testing functions, and stable signal output to meet the requirements of modern power system testing.

With 0.1% accuracy, TEST-330B provides precise current and voltage injection for relay calibration, protection characteristic analysis, and commissioning applications.

Designed for professional engineers, utilities, and substations, TEST-330B supports comprehensive three phase relay testing with reliable performance across various protection functions, including differential, distance, synchronization, harmonic, and other advanced relay tests.

Delivering accuracy, flexibility, and efficiency in one advanced platform, TEST-330B is the ideal solution for high-precision protection relay testing.

Product Details:

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

#TEST330B #ThreePhaseSecondaryCurrentInjectionTestSet #01Accuracy #HighPrecisionRelayTester #ProtectionRelayTesting #RelayTestingEquipment #SecondaryInjectionTest #ThreePhaseRelayTester #PowerSystemTesting #SubstationTesting #ElectricalTesting #RelayCommissioning

LC-100KVB | Fast & Reliable Transformer Oil Dielectric Strength Testing

 Protect your transformers with confidence using the GFUVE LC-100KVB Portable Transformer Oil Dielectric Strength Tester.

Designed for fast and accurate insulation oil analysis, the LC-100KVB performs automatic dielectric strength testing for transformer oils up to 100kV. Equipped with a 7-inch color touch screen, programmable test sequences, intelligent protection, and high-precision measurement, it delivers reliable results in both laboratory and on-site environments.

Whether you're working in power utilities, transformer manufacturing, maintenance, or testing laboratories, the LC-100KVB helps improve testing efficiency while ensuring equipment safety and compliance with international standards.

🔗 Product Details: https://www.gfuvegroup.com/power-transformer-test/portable-transformer-oil-dielectric-strength-tester.html

#GFUVE #LC100KVB #TransformerOilTester #DielectricStrengthTester #OilBreakdownVoltage #TransformerTesting #ElectricalTesting #HighVoltageTesting #PowerUtility #Substation #TransformerMaintenance #InsulationOil #ElectricalMaintenance #ConditionMonitoring #PowerSystem

TEST-330B | AC Test | Three Phase Relay Tester

 Explore the AC testing performance of the TEST-330B Three Phase Secondary Current Injection Test Set and see how it supports professional relay verification in modern power systems.

This demonstration highlights the AC test process of TEST-330B, showing how engineers can apply controlled three-phase signals to evaluate relay operation and confirm protection system performance.

Designed for commissioning, maintenance, and laboratory testing, TEST-330B provides a practical and efficient testing platform for electrical professionals working with protection relays and power system equipment.

Discover reliable three-phase AC relay testing with TEST-330B.

Product Details:

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

#TEST330B #ACTest #ThreePhaseRelayTester #RelayTesting #ProtectionRelayTesting #SecondaryInjectionTest #PowerSystemTesting #ElectricalTesting #SubstationTesting #RelayProtection #PowerEngineering #TestEquipment