https://www.hkvtest.com/ 1.0 daily 2026-07-30 https://www.hkvtest.com/sale-55369597-vlf-ac-hipot-tester.html 0.8 weekly 2026-07-30 https://img.hkvtest.com/photo/pl221540099-vlf_ac_hipot_tester.jpg https://img.hkvtest.com/photo/pl221540098-vlf_ac_hipot_tester.jpg https://img.hkvtest.com/photo/pl221540105-vlf_ac_hipot_tester.jpg https://img.hkvtest.com/photo/pl221540115-vlf_ac_hipot_tester.jpg https://img.hkvtest.com/photo/pl221540279-vlf_ac_hipot_tester.jpg https://img.hkvtest.com/photo/hkvtest/video/vlf-testing-made-portable-498186.jpg VLF AC Hipot Tester VLF Hipot Tester HZG1701 Product Introduction The HZG1701 VLF Hipot Tester (Very Low Frequency High Voltage Generator) is a professional AC withstand voltage test system designed for insulation testing of high-voltage electrical equipment. 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Compared with traditional ratio bridge testing methods, this instrument provides a more convenient and efficient solution with a large color LCD display, intuitive operation interface, and automatic three-phase ratio https://style.hkvtest.com/vodcdn/videos/encoder/1202607/618a26fb74f87e3251da0b71df416f48/playlist-transformer-turns-ratio-tester-for-power-transformer-testing.m3u8 19 2026-07-24T15:08:13+08:00 4 4.7 https://www.hkvtest.com/sale-55568900-six-phase-relay-protection-test-set-for-power-system-testing.html 0.8 weekly 2026-07-30 https://img.hkvtest.com/photo/pl222451394-six_phase_relay_protection_test_set_for_power_system_testing.jpg https://img.hkvtest.com/photo/pl222451400-six_phase_relay_protection_test_set_for_power_system_testing.jpg https://www.hkvtest.com/sale-54980940-prt-iii-microprocessor-relay-protection-test-set-secondary-injection-tester-for-substation-testing.html 0.8 weekly 2026-07-29 https://img.hkvtest.com/photo/pl216671280-prt_iii_microprocessor_relay_protection_test_set_secondary_injection_tester_for_substation_testing.jpg https://img.hkvtest.com/photo/pl222435888-prt_iii_microprocessor_relay_protection_test_set_secondary_injection_tester_for_substation_testing.jpg https://img.hkvtest.com/photo/hkvtest/video/high-voltage-testing-made-easy-443245.jpg PRT-III Microprocessor Relay Protection Test Set | Secondary Injection Tester for Substation Testing Microprocessor Numerical Relay Protection Test Set for Substation Applications The Microprocessor Numerical Relay Protection Device is designed for transformer, feeder, and transmission line protection testing in 10kV 35kV substations. Compliant with IEC 60255 standards, this advanced secondary injection test set provides reliable protection testing, fast response, and intelligent monitoring for modern power systems. It is widely used in substations, power utilities, https://style.hkvtest.com/vodcdn/videos/encoder/1202604/452b5b24e12814cc1ad227654c2c2f05/playlist-prt-iii-microprocessor-relay-protection-test-set-secondary-injection-tester-for-substation-testing.m3u8 20 2026-04-16T10:30:26+08:00 10 4.9 https://www.hkvtest.com/sale-55566394-web-server-type-enabled-high-voltage-testing-instrument-utilizing-http-protocol-for-accurate-electri.html 0.8 weekly 2026-07-30 https://img.hkvtest.com/photo/pl222430811-web_server_type_enabled_high_voltage_testing_instrument_utilizing_http_protocol_for_accurate_electrical_component_testing_and_assurance.jpg https://img.hkvtest.com/photo/pl222430812-web_server_type_enabled_high_voltage_testing_instrument_utilizing_http_protocol_for_accurate_electrical_component_testing_and_assurance.jpg https://img.hkvtest.com/photo/pl222430814-web_server_type_enabled_high_voltage_testing_instrument_utilizing_http_protocol_for_accurate_electrical_component_testing_and_assurance.jpg https://img.hkvtest.com/photo/pl222430813-web_server_type_enabled_high_voltage_testing_instrument_utilizing_http_protocol_for_accurate_electrical_component_testing_and_assurance.jpg https://www.hkvtest.com/sale-54746847-oil-immersed-ac-withstand-voltage-test-transformer-power-frequency-high-voltage-tester.html 0.8 weekly 2026-07-30 https://img.hkvtest.com/photo/pl213922926-oil_immersed_ac_withstand_voltage_test_transformer_power_frequency_high_voltage_tester.jpg https://img.hkvtest.com/photo/pl213922925-oil_immersed_ac_withstand_voltage_test_transformer_power_frequency_high_voltage_tester.jpg https://img.hkvtest.com/photo/pl213922924-oil_immersed_ac_withstand_voltage_test_transformer_power_frequency_high_voltage_tester.jpg https://img.hkvtest.com/photo/pl213922923-oil_immersed_ac_withstand_voltage_test_transformer_power_frequency_high_voltage_tester.jpg https://img.hkvtest.com/photo/pl213922922-oil_immersed_ac_withstand_voltage_test_transformer_power_frequency_high_voltage_tester.jpg https://img.hkvtest.com/photo/hkvtest/video/reliable-high-voltage-insulation-testing-507859.jpg Oil Immersed AC Withstand Voltage Test Transformer | Power Frequency High Voltage Tester Oil Immersed AC Withstand Voltage Test Transformer Product Introduction The Oil Immersed AC Withstand Voltage Test Transformer is a professional power frequency high-voltage testing system designed for AC insulation withstand voltage testing of electrical equipment and insulating materials. It is widely used to verify insulation strength, identify insulation defects, and evaluate dielectric performance before equipment is put into service. Built with high-quality oil-immersed https://style.hkvtest.com/vodcdn/videos/encoder/1202607/389d65b6614625a3dc37da596bb96db3/playlist-oil-immersed-ac-withstand-voltage-test-transformer-power-frequency-high-voltage-tester.m3u8 35 2026-07-16T11:00:00+08:00 10 4.7 https://www.hkvtest.com/sale-55276692-hzd1401-intelligent-pipe.html 0.8 weekly 2026-07-25 https://img.hkvtest.com/photo/pl222250964-hzd1401_intelligent_pipe_cable_locator_underground_cable_detection_equipment.jpg https://img.hkvtest.com/photo/pl221198339-hzd1401_intelligent_pipe_cable_locator_underground_cable_detection_equipment.jpg https://img.hkvtest.com/photo/pl221198329-hzd1401_intelligent_pipe_cable_locator_underground_cable_detection_equipment.jpg https://img.hkvtest.com/photo/pl221198335-hzd1401_intelligent_pipe_cable_locator_underground_cable_detection_equipment.jpg https://img.hkvtest.com/photo/hkvtest/video/underground-cable-locator-for-fast-cable-501895.jpg HZD1401 Intelligent Pipe & Cable Locator | Underground Cable Detection Equipment Overview The HZD1401 Intelligent Pipe & Cable Locator is a high-performance underground cable and metallic pipe detection instrument independently developed by Wuhan Hongzhi Gaoce Electrical Technology Co., Ltd. The system consists of a transmitter and a receiver, integrating path tracing, cable identification, and fault pinpointing into one portable solution. It is widely used in power cable route surveying, non contact identification of energised cables, metal pipe (gas, https://style.hkvtest.com/vodcdn/videos/encoder/1202607/f7482f124f6e62f1a48860afcfd920e3/playlist-hzd1401-intelligent-pipe-cable-locator-underground-cable-detection-equipment.m3u8 8 2026-07-02T15:29:00+08:00 7 4.4 https://www.hkvtest.com/sale-55251606-tag-8500-power-off-phase-sequence-meter.html 0.8 weekly 2026-07-25 https://img.hkvtest.com/photo/pl220880173-tag_8500_power_off_phase_sequence_meter.jpg https://img.hkvtest.com/photo/pl220880172-tag_8500_power_off_phase_sequence_meter.jpg https://img.hkvtest.com/photo/pl220880174-tag_8500_power_off_phase_sequence_meter.jpg https://img.hkvtest.com/photo/pl220880171-tag_8500_power_off_phase_sequence_meter.jpg https://img.hkvtest.com/photo/hkvtest/video/fast-accurate-phase-identification-463116.jpg TAG-8500 Power-off Phase Sequence Meter Overview Used for phase identification on de-energized transmission lines, switchgear, and live displays. Ensures consistent phase naming with the main grid and solves future grid-connection issues. Important: Only for use on de-energized cable cores. Always verify power is off before testing. Key Specifications Transmitting Host Display: 3.5 LCD color screen Power: 11.1V Li-ion battery ( 12h operation) Pulse voltage 400V, pulse current 4A Operating temperature: -30 to https://style.hkvtest.com/vodcdn/videos/encoder/1202606/5817cbfbdbd2c9ef0c082791214a6ded/playlist-tag-8500-power-off-phase-sequence-meter.m3u8 58 2026-06-04T11:23:14+08:00 8 4.2 https://www.hkvtest.com/sale-54930996-hz3035-digital-insulation-resistance-tester.html 0.8 weekly 2026-07-25 https://img.hkvtest.com/photo/pl216118761-hz3035_digital_insulation_resistance_tester.jpg https://img.hkvtest.com/photo/pl216118758-hz3035_digital_insulation_resistance_tester.jpg https://img.hkvtest.com/photo/pl216118778-hz3035_digital_insulation_resistance_tester.jpg https://img.hkvtest.com/photo/hkvtest/video/insulation-resistance-tester-on-site-testing-501899.jpg HZ3035 Digital Insulation Resistance Tester Digital Insulation Resistance Tester Product Introduction The Digital Insulation Resistance Tester is a professional high-voltage insulation testing instrument designed for preventive maintenance and insulation diagnostics of electrical equipment. 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Designed to meet the diverse needs of consumers and professionals alike, this product exemplifies the perfect blend of functionality and modern design, making it a pivotal offering in the Unnamed Product Segment. Within the Unnamed Classification Group, this product https://style.hkvtest.com/vodcdn/videos/encoder/1202606/20cc0b1915277ce7baa7540b92c59571/playlist-wireless-digital-non-contact-high-voltage-phasing-tester-for-power-system-testing.m3u8 13 2026-06-16T16:58:47+08:00 7 4.4 https://www.hkvtest.com/sale-55356450-cable-fault-locator.html 0.8 weekly 2026-07-25 https://img.hkvtest.com/photo/pl221486895-cable_fault_locator.jpg https://img.hkvtest.com/photo/pl221486892-cable_fault_locator.jpg https://img.hkvtest.com/photo/pl221486893-cable_fault_locator.jpg https://img.hkvtest.com/photo/pl221486894-cable_fault_locator.jpg https://www.hkvtest.com/sale-55292981-transformer-ratio-tester.html 0.8 weekly 2026-07-25 https://img.hkvtest.com/photo/pl221201249-transformer_ratio_tester.jpg https://www.hkvtest.com/sale-54770925-portable-digital-cable-identifier-for-live-and-de-energized-cable-testing.html 0.8 weekly 2026-07-25 https://img.hkvtest.com/photo/pl216629152-portable_digital_cable_identifier_for_live_and_de_energized_cable_testing.jpg https://img.hkvtest.com/photo/pl216630545-portable_digital_cable_identifier_for_live_and_de_energized_cable_testing.jpg https://img.hkvtest.com/photo/pl216630543-portable_digital_cable_identifier_for_live_and_de_energized_cable_testing.jpg https://img.hkvtest.com/photo/pl216628076-portable_digital_cable_identifier_for_live_and_de_energized_cable_testing.jpg https://www.hkvtest.com/sale-54731667-hzb1202-dc-resistance-tester-for-transformer-testing.html 0.8 weekly 2026-07-25 https://img.hkvtest.com/photo/pl213825180-hzb1202_dc_resistance_tester_for_transformer_testing.jpg https://img.hkvtest.com/photo/pl213826020-hzb1202_dc_resistance_tester_for_transformer_testing.jpg https://img.hkvtest.com/photo/pl213826017-hzb1202_dc_resistance_tester_for_transformer_testing.jpg https://img.hkvtest.com/photo/pl213826019-hzb1202_dc_resistance_tester_for_transformer_testing.jpg https://img.hkvtest.com/photo/pl213826018-hzb1202_dc_resistance_tester_for_transformer_testing.jpg https://img.hkvtest.com/photo/hkvtest/video/dc-resistance-tester-operation-tutorial-460130.jpg HZB1202 DC Resistance Tester for Transformer Testing Overview The DC resistance tester is an essential tool for testing inductive coils such as power transformers, mutual inductors, reactors, and electromagnetic operating mechanisms during manufacturing, factory inspections, installation, major repairs, post-tap-changer adjustments, acceptance tests, and preventive tests in the power sector. It can inspect the welding quality of winding joints, detect inter-turn short circuits, verify the proper contact of tap-changer positions https://style.hkvtest.com/vodcdn/videos/encoder/1202605/6c377de536d04853128eca2c9b60d5ca/playlist-hzb1202-dc-resistance-tester-for-transformer-testing.m3u8 9 2026-05-29T09:58:19+08:00 11 4.9 https://www.hkvtest.com/sale-54977959-tag-8600c-wireless-high-voltage-phase-detector-5v-500kv-phase-sequence-tester-manufacturer.html 0.8 weekly 2026-07-25 https://img.hkvtest.com/photo/pl216638403-tag_8600c_wireless_high_voltage_phase_detector_5v_500kv_phase_sequence_tester_manufacturer.jpg https://img.hkvtest.com/photo/pl216638408-tag_8600c_wireless_high_voltage_phase_detector_5v_500kv_phase_sequence_tester_manufacturer.jpg https://img.hkvtest.com/photo/pl216638274-tag_8600c_wireless_high_voltage_phase_detector_5v_500kv_phase_sequence_tester_manufacturer.jpg https://img.hkvtest.com/photo/pl216637862-tag_8600c_wireless_high_voltage_phase_detector_5v_500kv_phase_sequence_tester_manufacturer.jpg https://img.hkvtest.com/photo/pl216637855-tag_8600c_wireless_high_voltage_phase_detector_5v_500kv_phase_sequence_tester_manufacturer.jpg https://img.hkvtest.com/photo/pl216638044-tag_8600c_wireless_high_voltage_phase_detector_5v_500kv_phase_sequence_tester_manufacturer.jpg https://img.hkvtest.com/photo/pl216637937-tag_8600c_wireless_high_voltage_phase_detector_5v_500kv_phase_sequence_tester_manufacturer.jpg https://img.hkvtest.com/photo/pl216637613-tag_8600c_wireless_high_voltage_phase_detector_5v_500kv_phase_sequence_tester_manufacturer.jpg https://img.hkvtest.com/photo/hkvtest/video/boost-productivity-instantly-today-501973.jpg TAG-8600C Wireless High Voltage Phase Detector 5V 500kV Phase Sequence Tester Manufacturer TAG-8600C Wireless High Voltage Phase Detector The TAG-8600C Wireless High Voltage Phase Detector is designed for phase verification in grid connection and ring network operations of high-voltage transmission lines. It supports phase comparison of AC transmission lines ranging from 5V to 500kV and can also be used for live line detection and phase sequence verification in power systems. With advanced wireless communication technology, the device eliminates the limitations of https://style.hkvtest.com/vodcdn/videos/encoder/1202607/e68ee344d4db95e45cff5c3bf1536fed/playlist-tag-8600c-wireless-high-voltage-phase-detector-5v-500kv-phase-sequence-tester-manufacturer.m3u8 11 2026-07-02T16:52:04+08:00 6 4.5 https://www.hkvtest.com/sale-55338016-tag-8700-wireless-high-voltage-phase-sequence-meter-220kv-phase-detector.html 0.8 weekly 2026-07-25 https://img.hkvtest.com/photo/pl221394446-tag_8700_wireless_high_voltage_phase_sequence_meter_220kv_phase_detector.jpg https://img.hkvtest.com/photo/pl221394246-tag_8700_wireless_high_voltage_phase_sequence_meter_220kv_phase_detector.jpg https://img.hkvtest.com/photo/pl221394648-tag_8700_wireless_high_voltage_phase_sequence_meter_220kv_phase_detector.jpg https://img.hkvtest.com/photo/pl221394644-tag_8700_wireless_high_voltage_phase_sequence_meter_220kv_phase_detector.jpg https://img.hkvtest.com/photo/pl221394645-tag_8700_wireless_high_voltage_phase_sequence_meter_220kv_phase_detector.jpg https://img.hkvtest.com/photo/pl221394439-tag_8700_wireless_high_voltage_phase_sequence_meter_220kv_phase_detector.jpg https://img.hkvtest.com/photo/pl221394444-tag_8700_wireless_high_voltage_phase_sequence_meter_220kv_phase_detector.jpg https://img.hkvtest.com/photo/pl221394451-tag_8700_wireless_high_voltage_phase_sequence_meter_220kv_phase_detector.jpg https://img.hkvtest.com/photo/pl221394450-tag_8700_wireless_high_voltage_phase_sequence_meter_220kv_phase_detector.jpg https://img.hkvtest.com/photo/hkvtest/video/wireless-high-voltage-phase-verification-device-501955.jpg TAG-8700 Wireless High Voltage Phase Sequence Meter 220kV Phase Detector Product Introduction The TAG-8700 Wireless High Voltage Phase Sequence Meter is a professional electrical testing instrument designed for three-phase sequence detection, high voltage phase checking, and circuit synchronization verification . The instrument is suitable for 5V to 220kV AC transmission lines and can be used for phase checking of high-voltage power lines, switchgear live display devices, and power system commissioning applications. Using advanced digital wireless https://style.hkvtest.com/vodcdn/videos/encoder/1202607/448c91e6cfd5d584c9f87af4571351d2/playlist-tag-8700-wireless-high-voltage-phase-sequence-meter-220kv-phase-detector.m3u8 11 2026-07-02T16:28:56+08:00 4 4.1 https://www.hkvtest.com/sale-54956093-dc-high-voltage-generator-60kv-withstand-voltage.html 0.8 weekly 2026-07-25 https://img.hkvtest.com/photo/pl216395977-dc_high_voltage_generator_60kv_withstand_voltage_leakage_current_tester_manufacturer.jpg https://img.hkvtest.com/photo/pl216396104-dc_high_voltage_generator_60kv_withstand_voltage_leakage_current_tester_manufacturer.jpg https://img.hkvtest.com/photo/pl216396140-dc_high_voltage_generator_60kv_withstand_voltage_leakage_current_tester_manufacturer.jpg https://www.hkvtest.com/sale-54762919-hzb-1202-10a-20a-fast-response-dc-resistance-tester-high-repeatability-full-protection-for-transform.html 0.8 weekly 2026-07-25 https://img.hkvtest.com/photo/pl213825180-hzb_1202_10a_20a_fast_response_dc_resistance_tester_high_repeatability_full_protection_for_transformer_testing.jpg https://img.hkvtest.com/photo/pl213826017-hzb_1202_10a_20a_fast_response_dc_resistance_tester_high_repeatability_full_protection_for_transformer_testing.jpg https://img.hkvtest.com/photo/pl213826018-hzb_1202_10a_20a_fast_response_dc_resistance_tester_high_repeatability_full_protection_for_transformer_testing.jpg https://img.hkvtest.com/photo/pl213826019-hzb_1202_10a_20a_fast_response_dc_resistance_tester_high_repeatability_full_protection_for_transformer_testing.jpg https://img.hkvtest.com/photo/pl213826020-hzb_1202_10a_20a_fast_response_dc_resistance_tester_high_repeatability_full_protection_for_transformer_testing.jpg https://img.hkvtest.com/photo/hkvtest/video/dc-resistance-tester-operation-tutorial-460130.jpg HZB 1202 10A/20A Fast Response DC Resistance Tester High Repeatability Full Protection for Transformer Testing The HZB1202 DC resistance tester is an essential tool for testing inductive coils such as power transformers, mutual inductors, reactors, and electromagnetic operating mechanisms during manufacturing, factory inspections, installation, major repairs, post-tap-changer adjustments, acceptance tests, and preventive tests in the power sector. It can inspect the welding quality of winding joints, detect inter-turn short circuits, verify the proper contact of tap-changer positions, https://style.hkvtest.com/vodcdn/videos/encoder/1202605/6c377de536d04853128eca2c9b60d5ca/playlist-hzb-1202-10a-20a-fast-response-dc-resistance-tester-high-repeatability-full-protection-for-transform.m3u8 9 2026-05-29T09:58:19+08:00 11 4.1 https://www.hkvtest.com/sale-55104242-hz-xfa03-wireless-three-phase-power-analyzer-for-substation-testing-manufacturer.html 0.8 weekly 2026-07-25 https://img.hkvtest.com/photo/pl218201843-hz_xfa03_wireless_three_phase_power_analyzer_for_substation_testing_manufacturer.jpg https://img.hkvtest.com/photo/pl218201845-hz_xfa03_wireless_three_phase_power_analyzer_for_substation_testing_manufacturer.jpg https://img.hkvtest.com/photo/pl218201846-hz_xfa03_wireless_three_phase_power_analyzer_for_substation_testing_manufacturer.jpg https://img.hkvtest.com/photo/pl218201847-hz_xfa03_wireless_three_phase_power_analyzer_for_substation_testing_manufacturer.jpg https://img.hkvtest.com/photo/pl218201848-hz_xfa03_wireless_three_phase_power_analyzer_for_substation_testing_manufacturer.jpg https://www.hkvtest.com/video-420515-handheld-loop-resistance-tester-for-circuit-breakers.html 0.8 weekly 2026-07-30 https://img.hkvtest.com/photo/hkvtest/video/precise-resistance-testing-420515.jpg Handheld Loop Resistance Tester for Circuit Breakers Let s dive in see this solution in action and notice the key moments. In this video, we demonstrate the Handheld Loop Resistance Tester for Circuit Breakers, showing you how to measure contact resistance and loop resistance with precision. Watch as we walk through its 7-inch touchscreen interface, multiple current settings up to 100A, and practical features like data storage and Bluetooth connectivity. Learn how this portable device ensures accurate, on-site testing for switches and circuit breakers, with insights into its safety protections and battery performance. https://style.hkvtest.com/vodcdn/videos/encoder/1202602/d4095523f6e1c2e8d2ed2d603e8cd447/playlist-handheld-loop-resistance-tester-for-circuit-breakers.m3u8 24 2026-02-25T14:58:44+08:00 11 4.4 https://www.hkvtest.com/video-443245-microprocessor-numerical-relay-protection-device.html 0.8 weekly 2026-07-30 https://img.hkvtest.com/photo/hkvtest/video/high-voltage-testing-made-easy-443245.jpg Microprocessor Numerical Relay Protection Device Display of Relay Protection Device Interface https://style.hkvtest.com/vodcdn/videos/encoder/1202604/452b5b24e12814cc1ad227654c2c2f05/playlist-microprocessor-numerical-relay-protection-device.m3u8 20 2026-04-16T10:30:26+08:00 10 4.6 Relay Protection & Electrical Testing https://www.hkvtest.com/video-460119-video-detail.html 0.8 weekly 2026-07-30 https://img.hkvtest.com/photo/hkvtest/video/contact-resistance-tester-460119.jpg Follow along for a hands-on demonstration that highlights performance points. In this video, we showcase the Portable Salt Deposit Density Tester for insulator contamination detection, explaining how it measures equivalent salt deposit density (ESDD), conductivity, and temperature to assess pollution severity in power systems. You'll see its direct-read capabilities, automatic temperature compensation, and field-ready features in action, helping prevent pollution flashover and ensure grid reliability. https://style.hkvtest.com/vodcdn/videos/encoder/1202605/03695087e347b1b67aea53b9e92bf7ee/playlist-.m3u8 18 2026-05-29T09:49:32+08:00 5 4.4 https://www.hkvtest.com/video-460130-dc-resistance-tester-operation-tutorial.html 0.8 weekly 2026-07-30 https://img.hkvtest.com/photo/hkvtest/video/dc-resistance-tester-operation-tutorial-460130.jpg DC Resistance Tester Operation Tutorial In this practical tutorial, we demonstrate the complete operation of the 10A/20A Fast Response DC Resistance Tester for transformer testing applications. Watch as we walk through the setup process, measurement procedures, and data interpretation steps, showing how this instrument delivers high repeatability and full protection features in real-world scenarios. Learn proper testing techniques for power transformers and inductive coils while understanding the device's intelligent power management and automatic discharge capabilities. https://style.hkvtest.com/vodcdn/videos/encoder/1202605/6c377de536d04853128eca2c9b60d5ca/playlist-dc-resistance-tester-operation-tutorial.m3u8 9 2026-05-29T09:58:19+08:00 11 4.1 Transformer Testing Equipment https://www.hkvtest.com/video-463116-de-energized-phase-identification-instrument-step-by-step-operation-guide.html 0.8 weekly 2026-07-30 https://img.hkvtest.com/photo/hkvtest/video/fast-accurate-phase-identification-463116.jpg De-energized Phase Identification Instrument Step-by-Step Operation Guide In this step-by-step operation guide, we demonstrate how to safely and effectively use the TAG-8500 Power-off Phase Sequence Meter for de-energized phase identification. Watch as we walk through the complete testing process from proper equipment setup and connection verification to interpreting LCD display readings and buzzer signals for successful phase matching. Learn practical techniques for adjusting gain levels, identifying wiring errors, and ensuring consistent phase naming alignment with the main grid. https://style.hkvtest.com/vodcdn/videos/encoder/1202606/5817cbfbdbd2c9ef0c082791214a6ded/playlist-de-energized-phase-identification-instrument-step-by-step-operation-guide.m3u8 58 2026-06-04T11:23:14+08:00 8 4.7 Phasing testing https://www.hkvtest.com/video-493765-phase-tester-speaker.html 0.8 weekly 2026-07-30 https://img.hkvtest.com/photo/hkvtest/video/perfect-speaker-phase-testing-493765.jpg phase tester speaker phase test https://style.hkvtest.com/vodcdn/videos/encoder/1202606/20cc0b1915277ce7baa7540b92c59571/playlist-phase-tester-speaker.m3u8 13 2026-06-16T16:58:47+08:00 7 4.6 Phasing testing https://www.hkvtest.com/video-498186-0-1hz-vlf-high-voltage-generator-insulation-testing.html 0.8 weekly 2026-07-30 https://img.hkvtest.com/photo/hkvtest/video/vlf-testing-made-portable-498186.jpg 0.1Hz VLF High Voltage Generator Insulation Testing Looking for a straightforward way to perform reliable insulation testing on high voltage equipment? This video provides a complete walkthrough of the HZG1701 0.1Hz VLF High Voltage Generator, showing how it simplifies AC withstand testing for power cables, motors, and generators. You'll see the equipment in action, learn the step-by-step operation process, and discover how ultra-low frequency technology reduces power requirements while maintaining testing effectiveness in both indoor and field environments. https://style.hkvtest.com/vodcdn/videos/encoder/1202606/ed3058b36714692997652923e2ffdd0c/playlist-0-1hz-vlf-high-voltage-generator-insulation-testing.m3u8 135 2026-06-25T16:42:26+08:00 11 4.2 High Voltage Test Equipment https://www.hkvtest.com/video-501895-cable-locator-underground-cable-tracing-fault-detection-for-power-systems.html 0.8 weekly 2026-07-30 https://img.hkvtest.com/photo/hkvtest/video/underground-cable-locator-for-fast-cable-501895.jpg Cable Locator | Underground Cable Tracing & Fault Detection for Power Systems We show the practical steps and results so you can judge suitability quickly. In this video, you'll see a complete field demonstration of the HZD1401 Intelligent Pipe & Cable Locator performing underground cable tracing, depth measurement, and fault detection. Watch as we use multiple signal coupling methods, cable identification with the flexible clamp, and precise fault pinpointing with the A-frame accessory in real-world scenarios. https://style.hkvtest.com/vodcdn/videos/encoder/1202607/f7482f124f6e62f1a48860afcfd920e3/playlist-cable-locator-underground-cable-tracing-fault-detection-for-power-systems.m3u8 8 2026-07-02T15:29:00+08:00 7 4.5 Cable Testing & Fault Location Equipment https://www.hkvtest.com/video-501899-insulation-resistance-tester-digital-megohmmeter-for-high-voltage-equipment-cable-testing.html 0.8 weekly 2026-07-30 https://img.hkvtest.com/photo/hkvtest/video/insulation-resistance-tester-on-site-testing-501899.jpg Insulation Resistance Tester | Digital Megohmmeter for High Voltage Equipment & Cable Testing Ever wondered how a high-voltage insulation resistance tester works in real electrical maintenance scenarios? In this video, we demonstrate the Digital Insulation Resistance Tester 5000V in action, showing you step-by-step how to perform insulation resistance tests on transformers, motors, and power cables. You'll see its large touchscreen interface, learn about DAR and PI measurements, and understand how this professional tool helps identify potential electrical failures before they cause downtime. https://style.hkvtest.com/vodcdn/videos/encoder/1202607/6caf18b520d5a57c0bbf95d1c345cf80/playlist-insulation-resistance-tester-digital-megohmmeter-for-high-voltage-equipment-cable-testing.m3u8 9 2026-07-02T15:31:45+08:00 4 4.5 Insulation & Insulator Testing https://www.hkvtest.com/video-501955-wireless-high-voltage-phase-verification-device-ring-network-grid-connection-phase-test.html 0.8 weekly 2026-07-30 https://img.hkvtest.com/photo/hkvtest/video/wireless-high-voltage-phase-verification-device-501955.jpg Wireless High Voltage Phase Verification Device | Ring Network Grid Connection Phase Test Let s dive in see this solution in action and notice the key moments. In this video, we demonstrate the TAG-8700 Wireless High Voltage Phase Sequence Meter performing live phase verification on high-voltage transmission lines. Watch as we showcase the wireless operation, vector diagram analysis, and voice-guided results during real field testing scenarios. You'll learn how this instrument ensures safety and efficiency in substation commissioning, grid connection projects, and power system maintenance applications. https://style.hkvtest.com/vodcdn/videos/encoder/1202607/448c91e6cfd5d584c9f87af4571351d2/playlist-wireless-high-voltage-phase-verification-device-ring-network-grid-connection-phase-test.m3u8 11 2026-07-02T16:28:56+08:00 4 4.3 Phasing testing https://www.hkvtest.com/video-505316-power-frequency-withstand-voltage-test-device.html 0.8 weekly 2026-07-30 https://img.hkvtest.com/photo/hkvtest/video/power-frequency-withstand-voltage-test-device-505316.jpg Power Frequency Withstand Voltage Test Device This official operation video demonstrates the full operating procedures of the Power Frequency Withstand Voltage Test Device, including equipment inspection, wiring connection, parameter setting, step-by-step testing, data reading and machine shutdown. The video presents standardized, safe and standardized operation processes, helping users quickly master the correct usage method, avoid operational errors, and ensure test accuracy and on-site construction safety. https://style.hkvtest.com/vodcdn/videos/encoder/1202607/fc893d85b96e935833004c42cdd2de7b/playlist-power-frequency-withstand-voltage-test-device.m3u8 33 2026-07-10T10:14:07+08:00 4 4.4 https://www.hkvtest.com/video-507859-wiring-operation-tutorial-of-power-frequency-withstand-voltage-test-device.html 0.8 weekly 2026-07-30 https://img.hkvtest.com/photo/hkvtest/video/reliable-high-voltage-insulation-testing-507859.jpg Wiring Operation Tutorial of Power Frequency Withstand Voltage Test Device In this wiring operation tutorial, we demonstrate the step-by-step process for connecting and operating the HZD1601 oil immersed AC withstand voltage test transformer. You'll see practical setup procedures, learn proper safety protocols, and understand how to configure timing parameters for accurate insulation strength testing of electrical equipment and materials. https://style.hkvtest.com/vodcdn/videos/encoder/1202607/389d65b6614625a3dc37da596bb96db3/playlist-wiring-operation-tutorial-of-power-frequency-withstand-voltage-test-device.m3u8 35 2026-07-16T11:00:00+08:00 10 4.6 High Voltage Test Equipment https://www.hkvtest.com/video-512393-handheld-transformer-turns-ratio-tester-lightweight-easy-operation.html 0.8 weekly 2026-07-30 https://img.hkvtest.com/photo/hkvtest/video/fast-accurate-transformer-ratio-testing-512393.jpg Handheld Transformer Turns Ratio Tester | Lightweight & Easy Operation Watch the demo to catch practical tips and quick performance insights. In this video, you'll see a hands-on demonstration of the handheld Transformer Turns Ratio Tester, learn how to perform automatic three-phase ratio testing with a single connection, and discover its applications for power transformers, PTs, CTs, and Z-type transformers in field and lab environments. https://style.hkvtest.com/vodcdn/videos/encoder/1202607/618a26fb74f87e3251da0b71df416f48/playlist-handheld-transformer-turns-ratio-tester-lightweight-easy-operation.m3u8 19 2026-07-24T15:08:13+08:00 4 4.8 Transformer Testing Equipment https://www.hkvtest.com/video-514796-how-to-use-a-100a-handheld-loop-resistance-tester.html 0.8 weekly 2026-07-30 https://img.hkvtest.com/photo/hkvtest/video/fast-accurate-loop-resistance-testing-514796.jpg How to Use a 100A Handheld Loop Resistance Tester Follow along for a hands-on demonstration that highlights performance points. In this video, you'll see how to properly operate the HZ-SHL 100A Handheld Loop Resistance Tester for circuit breaker contact resistance measurements. Watch as we demonstrate the step-by-step testing process, from setup and current selection to interpreting results on the 7-inch touchscreen interface. Learn practical field testing techniques, data management features, and safety considerations for accurate electrical connection evaluation in substations and industrial facilities. https://style.hkvtest.com/vodcdn/videos/encoder/1202607/d38aecc748413e19b678a604b23175ce/playlist-how-to-use-a-100a-handheld-loop-resistance-tester.m3u8 38 2026-07-29T16:50:19+08:00 0 4.4 Relay Protection & Electrical Testing https://www.hkvtest.com/products.html 0.8 weekly 2026-07-30 https://www.hkvtest.com/aboutus.html 0.8 monthly 2026-07-30 https://www.hkvtest.com/contactus.html 0.8 monthly 2026-07-30 https://www.hkvtest.com/factory.html 0.6 monthly 2026-07-30 https://www.hkvtest.com/quality.html 0.6 monthly 2026-07-30 https://www.hkvtest.com/contactnow.html 0.6 monthly 2026-07-22 https://www.hkvtest.com/sitemap.html 0.6 monthly 2026-07-30 https://www.hkvtest.com/privacy.html 0.6 monthly 2026-07-30 https://www.hkvtest.com/supplier-4816876-transformer-testing-equipment 1.0 weekly 2026-07-30 https://www.hkvtest.com/supplier-4815607-high-voltage-test-equipment 1.0 weekly 2026-07-30 https://www.hkvtest.com/supplier-4816878-cable-testing 1.0 weekly 2026-07-30 https://www.hkvtest.com/supplier-4899395-relay-protection 1.0 weekly 2026-07-30 https://www.hkvtest.com/supplier-4822244-insulation 1.0 weekly 2026-07-30 https://www.hkvtest.com/supplier-4822246-power-quality-analyzer 1.0 weekly 2026-07-30 https://www.hkvtest.com/supplier-4815614-phasing-testing 1.0 weekly 2026-07-30