Transmission Line Testers

GAO’s transmission line testers are electronic instruments designed to test the integrity and performance of electrical transmission lines. Our devices measure various parameters such as impedance, voltage, current, and reflection coefficients to detect any faults or anomalies in the transmission lines. By analyzing the data gathered from these tests, transmission line testers can identify issues such as cable faults, insulation problems, and improper termination, which can lead to signal degradation and system failures. Thus our transmission line testers play an important role in ensuring the reliability and efficiency of electrical transmission systems.

GAO’s transmission line testers are composed of test signal generator, probe or test leads, display unit, signal processing and analysis circuitry, and power source.

A transmission line tester is also known as line tester, cable tester, wire tester, signal line tester, communication line tester, network line tester, data line tester, connectivity tester, transmission line analyzer, line quality tester, line integrity tester, cable line analyzer, line impedance tester, line noise tester, line continuity tester, line fault tester, line performance analyzer, line signal analyzer, line impedance analyzer, line condition tester, line voltage tester, line path analyzer, line characterization tester, line diagnostic tool, line inspection device, line verification tool, line integrity analyzer, line signal quality tester, line troubleshooting device and line connectivity analyzer.

Showing 1–24 of 93 results

GAOtek Obdii

GAOtek obdii has new generation TPMS diagnostic & service tool specially designed to activate all known TPMS sensors, read TPMS sensor status, check TPMS system health condition, program MX-sensors and conduct TPMS relearn, With Quick Mode and Advanced Mode options.
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GAOTek Line Analyzer

SKU: GAOTek-TLT-201
GAOTek line analyser has been designed for slid line test (xDSL include ADSL, ADSL2, ADSL2+, READSL, VDSL2 etc) and maintenance It provides xDSL test, PPPoE dial test, DMM test, Modem emulation, line voltage indication and so on.
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GAOtek Obdii

SKU: GAOTek-TLT-182
GAOtek obdii has new generation TPMS diagnostic & service tool specially designed to activate all known TPMS sensors, read TPMS sensor status, check TPMS system health condition, program MX-sensors and conduct TPMS relearn, With Quick Mode and Advanced Mode options.
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GAOTek Comprehensive Tester

SKU: GAOTek-TLT-181
GAOTek comprehensive tester has multifunction digital safety testing instrument, designed with a combination of large-scale integrated analog & digital circuits and micro-processor chip.
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GAOTek OTDR Tester

SKU: GAOTek-TLT-180
This OTDR Tester has wavelength of 1310 nm or 1550 nm, dynamic range(dB) of 28 dB or 26 dB, memory capacity of 1000 and event dead zone of 8.2 ft.
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GAOTek Return Loss Tester

SKU: GAOTek-TLT-179
GAOTek return loss tester has Insertion loss and return Loss in fiber optic cable, optical passive components and fiber optic communications system.
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GAOTek Insulation Resistance

SKU: GAOTek-TLT-178
This Transmission Line Testers has output voltage of 1000, Insulation of 15 KV, 30 TOHM, 7 mA, circuit current of ≥7 mA, and power supply of 6.2 Ah.
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GAOTek TTR Tester

SKU: GAOTek-TLT-177
GAOTek TTR tester is process of user handover and maintenance test that the transformer test must be done, so it can be used for quality supervision of transformer, to prevent the transformer inter-turn short circuit, open circuit, connection error, voltage regulating switch internal fault or contact failure.
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GAOTek Load Tester Transformer

SKU: GAOTek-TLT-176
GAOTek load tester transformer has a high precision specially developed by our company for measuring transformer capacity and loss parameters.
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GAOTek Meter Transformer

SKU: GAOTek-TLT-175
GAOTek meter transformer has been used in transformer production, the transformer newly installation before use, or according to IEC and national standard, the turns ratio or voltage ratio should be tested in the circle rate.
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GAOTek Circuit Breaker Tester

SKU: GAOTek-TLT-174
GAOTek circuit breaker tester has voltage switch operating characteristics tests. It can accurately measure low-oil, multi-oil, vacuum, sulphur hexafluoride and other high-voltage circuit breakers of various voltage levels. Mechanical dynamic characteristics parameters.
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GAOTek Intelligent Tester

SKU: GAOTek-TLT-173
This Intelligent Tester is accurate in angle measurement of 0.15°, resolution of 0.0032 ft, storage temperature of -22 °F to 140 °F and power of 4 A.
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GAOTek Multifunction Cable Transmission Line Tester

SKU: GAOTek-TLT-280
GAOTek multifunction cable transmission line tester is the most portable test instrument in the industry.
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GAOTek Cable Speed Transmission Line Tester

SKU: GAOTek-TLT-279
GAOTek cable speed transmission line tester is used for automatically testing the precise location of the coaxial cable and communication cable’s broken wires, mixed wires, ground gas and related cable fault.
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GAOTek Optic Power Transmission Line Tester

SKU: GAOTek-TLT-278
GAOTek optic power transmission line tester are the most portable test instrument in the industry.
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GAOTek Light Transmittance Tester

SKU: GAOTek-TLT-277
GAOTek light transmittance tester is a desktop instrument, which is professionally used for optical transmittance test of various materials such as lens, glass, coating material, organic material and paint, etc.
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GAOTek Insulation Transmission Line Tester

SKU: GAOTek-TLT-276
GAOTek insulation transmission line tester is mainly used to measure the insulation resistance of insulators in power system to ensure the reliable and safe operation of transmission lines.
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GAOTek Network Transmission Line Tester

SKU: GAOTek-TLT-275
GAOTek network transmission line testers are portable devices used for locating broken faults, cross faults, insulation faults and so on. It can be used to measure the cable length, wave velocity and distinguish the middle joints and terminals.
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GAOTek Phase Transmission Line Tester

SKU: GAOTek-TLT-274
GAOTek phase transmission line tester is used to identify the phase A, B and C of low voltage power supply lines in the same LV transformer areas.
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GAOTek Power Communication Line Tester

SKU: GAOTek-TLT-273
GAOTek power communication line tester is suitable for automatically measuring the precise position of core wire obstacles such as broken wires, mixed wires, earth and gas of power cables and communication cables.
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GAOTek High Voltage Transmission Line Tester

SKU: GAOTek-TLT-272
GAOTek high voltage transmission line is widely applied in the DC HV tests carried out for the zinc oxide lightening arrester, magnetic blow-out arrester, power cable, generator, transformer, circuit breaker, etc.
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GAOTek Underground Transmission Line Tester

SKU: GAOTek-TLT-271
GAOTek underground transmission line tester is used to test the distance between fault position to the measured transformer when aerial transmission line in short circuit or open circuit.
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GAOTek NG Wired Tester

SKU: GAOTek-TLT-223
This NG Wired Tester has an operating temperature of 32 °F to 104 °F, power consumption of ≤ 30 VA, and learning data storage of 3 sets.
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GAOTek Digital LCD Tester

SKU: GAOTek-TLT-193
This Digital LCD Tester has test voltage of 5000 V, measuring time of 15 minutes, short circuit current of < 3 mA and range of 5 Mohm to 1000 Gohm.
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GAO Tek’s transmission line testers have the following functions:

  • Measuring impedance: GAO’s transmission line testers can measure the impedance of a transmission line, which is a measure of the resistance to the flow of electrical current.
  • Testing insulation: Our transmission line testers can also test the insulation of the transmission line to ensure that there are no leaks or weak spots that could cause electrical interference or safety hazards.
  • Detecting faults: GAO’s transmission line testers can detect a range of faults in a transmission line, such as line breaks, grounding issues, or voltage drops.
  • Characterizing the transmission line: Our transmission line testers can also provide detailed information about the characteristics of the transmission line, such as its capacitance, inductance, and propagation delay.
  • Verifying installation: Our transmission line testers can also be used to verify the installation of new transmission lines or to ensure that existing lines are in compliance with relevant safety and performance standards.

GAO Tek’s transmission line testers are rugged, versatile and precision measurement instruments. They comply with applicable industry standards such as IEEE Standards, IEC Standards, ASTM Standards, and ISO Standards.

Our transmission line testers help our customers comply with relevant U.S. government regulations such as,

  • Occupational Safety and Health Administration regulations
  • National Electrical Code
  • Federal Communications Commission regulations
  • National Institute of Standards and Technology regulations

Our transmission line testers help our clients in complying with relevant Canadian government regulations such as,

  • Canadian Electrical Code
  • Canadian Occupational Health and Safety regulations
  • Measurement Canada regulations
  • Industry Canada regulations

Our transmission line testers have the following applications:

  • Cable fault location: GAO’s transmission line testers can be used to locate faults in underground power cables, such as insulation breakdowns or short circuits.
  • Line impedance measurement: Our transmission line testers can be used to measure the impedance of transmission lines, which is important for determining the quality and efficiency of the line.
  • Transmission line condition assessment: GAO’s transmission line testers can be used to assess the condition of transmission lines, including the presence of corrosion, damage, or other defects that may affect performance.
  • Insulation testing: Our transmission line testers can be used to test the insulation resistance of electrical equipment, including cables, transformers, and switchgear.
  • Waveform analysis: GAO’s transmission line testers can be used to analyze the waveforms of electrical signals on transmission lines, which can provide information about the performance and characteristics of the line.

Our transmission line testers can be shipped overnight within the continental U.S. and Canada, and can be shipped globally.