Transmission Line Testers
GAOTek provides affordable, safe and reliable transmission line testers, digital clamp meters and power meters with real-time display, wireless transmission, phase detection and built-in data storage. A transmission line is a specialized cable designed to conduct alternative current of radio frequency. Transmission lines are used for connecting radio transmitters and receivers with their antenna to distribute signals.
However in power systems, transmission lines are long conductor with bundle which carries a huge amount of generated power at a very high voltage from one station to another. Our transmission line testers determine the voltage drop, transmission efficiency, and line loss which are affected by line parameter R, L, and C of the transmission line. Our products are always supported by the newest leading technologies for our customers to use.
Transmission line testers are designed to determine the contact resistance between a metal and a semiconductor. Probes are applied to pairs of contacts, and the resistance between them is measured by applying a voltage across the contacts and measuring the resulting current.
There are three types of length wise transmission lines. The short transmission line has a length of about 50 km, voltage level of up to 20 kV, and capacitance effect is neglected thus only resistance and inductance is taken in calculation. Medium transmission line length is between 50 km to 150 km, the operational voltage level is from 20 kV and 100 kV, and all line parameters are taken into consideration, but distributed capacitance form is used for calculation purpose. Lastly, the long transmission line has a length of more than 150 km, a voltage level above 100 kV, and line constants are considered as distributed over the length of the line.
A transmission line tester has these following features:
Real-time display - The measurement results can be displayed in an accurate manner with the help of different color for easiness and readability of the user.
Wireless transmission - The maximum distance of straight line transmission is about 98 ft (30m)
Phase detection – Automatically set an alarm if in contact with a strong measured electric field
Built-in data storage - The measurement of evaluated data gets saved in memory automatically so that it can be downloaded or printed using a computer.
The construction of new transmission lines are getting multiplied day by day all over the world thus there will be a need of increasing technical operators to maintain and operate on these transmission lines. Therefore, GAOTek transmission line testers are ideal for this scenario which will effectively and efficiently help these technical workers to complete their task and aid them in their field of electrical engineering.
Showing all 16 results
Earth Resistance Tester for AC and DC Current (Data Holding)ID: GT00Y800ZX Call for Quote
Phase Meter for High Voltage (Digital Display)ID: GT00WD00ZZ Call for Quote
This Phase meter for High Voltage (Digital Display) is used to test on high and low voltage, testing phase position with wireless transmission distance and linear transmission distance of about 262.46 ft. (80 m)
Phase Meter with Nuclear Phase (Wireless Transmission)ID: GT00Y900ZW Call for Quote
This Phase Meter wit
Portable DC Ground Fault DetectorID: A0E10003 Call for Quote
DC power system grounding is an abnormal occurrence which may lead to system damage
Power Meter with High Accuracy (Multiple Wavelength)ID: GT00ZO00ZC Call for Quote
Power Tester for Loop Resistance (High Accuracy)ID: GT00Y800ZY Call for Quote
Power Meter with Magnetic Shielding (High Reliability)ID: GT00ZO00ZX Call for Quote
This multifunctional Power Meter with Magnetic Shielding is used to measure 3-phase AC voltage, current, leakage current, phase between current and voltage, frequency, power energy, phase sequence and active power
Power Meter for Caliber with 3 Phase (High Precision)ID: GT00ZO00ZY Call for Quote
Phase Meter with Wire Examination (Phase Detection)ID: GT00Y900ZX Call for Quote
This Phase Meter with Wire Examination is a multi- functional instrument which provides detection of phase sequence, live wire examination, simple power detection and also helps in break location detection.
GAOTek Three-Channel Wireless HV CT Ratio TesterID: GT00YC00ZZ Call for Quote
This Three-Channel Wireless HV CT Ratio Tester is used for on-line measurement of current and voltage using wireless transmission signal with a direct-line transmission distance of about 30 m.
High Precision Power Quality Analyzer (Real Time display)ID: GT00YQ00ZY Call for Quote
This High Precision Power Quality Analyzer is a multi-functional device which comes with the functions of electric parameter measurement, energy meter calibration and wiring judgment.
Double Clamp Digital Phase Volt-Ampere MeterID: GT00Y900ZZ Call for Quote
This intelligent Double Clamp digital Phase Volt-Ampere Meter is used in the direct measurement of AC voltage and current, and also used for indirect measurement of power factor and power of the circuits.
High Voltage Current Ratio Tester with Clamp AmmeterID: GT00YC00ZY Call for Quote
This High Voltage Cu
Earth Resistance Tester with Data Store (OL Sign)ID: GT00UY00ZZ Call for Quote
Three Phase Power Quality Analyzer (Real-Time Display)ID: GT00YQ00ZZ Call for Quote
This Three Power Quality Analyzer is a specially designed testing instrument which tests the power grid waveform distortion, voltage fluctuation, harmonic content and unbalanced three-phase power quality problems.
Three Phase Power Quality Analyzer (Built-in Data Storage)ID: GT00YQ00ZX Call for Quote
This high precision three phase power quality analyzer with built-in data storage is used to test power grid waveform distortion, voltage fluctuation and flicker, harmonic content and unbalanced three-phase power quality problems