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Overhead Line
See Also: Line Fault Indicators
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Overhead Line Fault Locators
We're professional overhead line fault locator manufacturers and producers in China, supplying the best customized service. Feel free to buy high quality overhead line fault locator from our factory. All our portable products used in utility locations are with CE certification.
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Handheld Grounding Tester
HGT1
The HGT1 is a handheld meter to measure ground impedance as well as step and touch voltages. Using the CPC 100 and CP CU1, test currents at variable frequencies can be fed into power cables or overhead lines safely to simulate a ground fault.
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Step & Touch & Earth Impedance
The kit applyed with STS 5000, STS 4000 or eKAM, allows to perform the following types of test: soil resistivity, ground grid resistance, step and touch tests and overhead lines zero sequence and mutual coupling coefficients
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Fault Passage Indicator for Overhead Lines
Sensorform OFI-FLS
The Sensorform OFI-FLS is a Fault Passage Indicator for Overhead Lines, which is designed to assist in the rapidlocation and isolation of faults on Medium Voltage networks (1-38kV). When the current in the phase exceeds a preset level, the fault is indicated by means of both a mechanical flag indicator and high-intensity LED indicators.
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Auto Reclose and Sync Check
Operating records for overhead power lines reveal that most faults are of a transient nature (e.g. lightning induced) & that service interruptions may be minimized by use of automatic reclosing of circuit breakers. An automatic reclosure of the circuit breaker, after the fault clears, provides improved service continuity & system stability. The 1B230 Series Reclose Relay provides for single or double shot automatic reclosing of circuit breakers, following interruption of supply due to a fault in the system.
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Corona Camera
UV-260
Being with high sensitivity UV-260 is a power tool to detect UV emission in full daylight with high signals from faraway and nearby sources. UV-260 is an ideal predictive maintenance device for overhead transmission lines and high voltage substations. UV-260 is newest genaration of UV imaging system with an emphasis on high performance functionality and easy operation, it is widely used in transmission line inspection, electrical utilities, HV research institutes, HV electrical component inspection, HV panal inspection, service providers, laboratories and more.
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Cable Identifier
Weshine Electric Manufacturing Co., Ltd
Weshine Electric Acoustooptical HV Wireless AC Overhead Line Phase Detector with Fiberglass Sticks
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For Overhead Distribution Line Current Tester With Power Flow Direction Record
MHR-600
MULTI MEASURING INSTRUMENTS Co., Ltd.
・Measuring and recording the average current values & power flow directions in the setting interval.・Easy to use, as an indirect hot-line work tool.・Memorized data can be outputted to USB memoryafter measurement.・For 6.6KV circuit, protection level IP64.
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OverHead Lines Contact Voltage & Low Voltage Indicator
LVD-415
Standard Electric Works Co., Ltd
● No batteries required.● Every circuit is doubled.● Buzzer indicates voltage detected.● Led indicates voltage detected.● Neon scale indicates voltage.● Dual HBC fuses.● High grade fiber glass probes.● Super polished fiber glass.● High strength connecting cord.● Heavy duty rated.● Replaceable tips.● Choice of tips available.● Lightweight.● Small storage space.● Strong strength reliefs.● Double poles non-polarized.● Suitable for 45 to 70 Hz networks.● Contact detector type.● Passive circuitry.● Fiber glass 1.6mm - CU 35um PCB.● Super bright neon lights and LEDs.● Ergonomically-designed.● EN 61010-031 CAT IV 500V.
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Overhead Line & Cable Impedance Test Sets
T&R Test Equipment Overhead Line & Cable Impedance Test Sets
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500 Watt AC/DC Power Line Conditioner, 3U VPX, Holdup Time
VPX56-3HU
NAI's VPX56-3HU is a rugged, high-performance 500-Watt Output +28 VDC Input 3U VPX AC/DC Power Line Conditioner designed for aerospace, defense, and industrial markets. This off-the-shelf power supply plugs directly into a standard VPX conduction cooled chassis and protects downstream DC-DC converters from MIL-STD-704 transients, low-voltage conditions and power interruptions, providing up to 50 milliseconds of holdup time at up to 500-Watts. Continuous Background Built-In-Test (BIT) and I2C communication are included.
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Fault Indicators and Sensors
Schweitzer Engineering Laboratories, Inc.
This technology detects overcurrent faults on overhead and underground lines to speed up power restoration and enhance protection.
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Overhead Fault Location
Schweitzer Engineering Laboratories, Inc.
Overhead faulted circuit indicators include easy-to-spot displays to help direct line crews to the faulted line sections—enabling faster restoration of power and improved customer uptime.
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Line Testers
GAOTek provides a large collection of certified and feature-rich line testers for sale to the United States, Canada and Globally. These devices are mainly used for line installation, line performance testing, inspection, and maintenance of the telecommunication networks. They are particularly designed to accelerate telecom trouble shooting and with the help of latest technology they are equipped with a smart CPU, IC, and SMT. These devices have some unique features such as caller ID display and last number redial. Moreover, it can also be used for multi-line testing, wire pair checking, inspection of line insulation and test for breaks and faults.
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Line Protection
Schweitzer Engineering Laboratories, Inc.
SEL transmission line protection relays provide subcycle line differential and multizone distance protection for a secure, reliable, and high-speed solution. Their fault-locating capabilities allow you to efficiently dispatch line crews to quickly isolate line problems and restore service faster.
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Line Tracer
MI-2093
Field proven instrument for under-wall low voltage installation tracing, fuse finding, short-circuit spot determination and metal installation tracing. Accurate fuse locating
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M-Power-line
The M-Power-Line convinces with its robust design, high efficiency, compact dimensions and excellent price-performance ratio. By using a Power Factor Controller (PFC) the input voltage may vary from 100V to 254V. This means that the devices can be used anywhere in the world regardless of the typical national power supply system. The simple operation and easy readability of relevant characteristic values (target/actual/state/alarm message) make the devices particularly attractive for use in many branches of industry as well as research institutes.
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Transmission Lines
SemiGens 50-ohm Transmission Lines offer the RF/microwave designer complete flexibility and repeatability for the most challenging applications.
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Overhead Enhanced Protection
Schweitzer Engineering Laboratories, Inc.
These products enhance distribution protection by helping relays make better tripping and reclosing decisions based on the location of a fault.
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Microwave Delay Line
E501
The Eastern OptX Series E501 / Microwave Delay Line is a high performance turnkey solution for radar and communications market. The E501 allows for ultra wide bandwidth, low loss, high isolation and immunity from EMI and EMP with timedelays up to 250 usec at frequencies up to 18 GHz.
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AC Line Separator
Model ALS-1
Kusam Electrical Industries Limited
With the aid of the AC line separator, the AC current from any appliance can be determined by plugging the appliance directly into the separator. By doing so, you are able to separate the neutral from hot / live conductor.
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Line Input Test
Measure the dB level and frequency of the iAudioInterface2 line input or line output (also works with any dock input audio source).
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Line Monitor
LE-170SA
LE-170SA is a compact hand-held size line monitor for CAN/LIN. It has a touch screen and can be control as for smartfones. It has 1 CAN channel and 1 LIN channel and it can monitor both CAN and LIN communication thus monitoring of the network which has both CAN and LIN is available. The monitor function can diplay the communication data in real-time while saving it. The simulation function can send/receive the test data instead of the original communication partner. The ID filtering and trigger function make your development/evaluation more efficient. It also can measure 4 external signals as degital signals or analog signals while monitoring the communication data.It is light (300g) and convenient for field testing. The line monitor is useful for not only development but also maintenance.
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Fixed/Dual Delay Line
Series 1000
The EOX Series 1000 RF/Microwave Time Delay System is an economical, high performance, turnkey solution for radar test, wireless communications, Wi-MAX, and altimeter applications. The Series 1000 features ultra wide bandwidth, low loss, high isolation, low noise figure, and high dynamic range. Available with time delays up to 250 µsec and a top end frequency of 18 GHz.
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VIDEO LINE TEST GENERATOR
VLTG-800
The VLTG-800 Video Line Test Generator creates a standard NTSC video signal that can be observed on a Monitor to display a series of vertical lines that defines the maximum number of “lines of definition” that the CCTV system is capable of displaying. The Generator creates eight groups of lines, ranging from 100 to 800 lines.
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Central Office Line Simulator
AI-7280
The AI-7280 is a highly flexible central office line simulator. It is designed primarily for the testing and verification of common terminal equipment, including standard telephones, Caller ID devices, SMS (Short Message Service) capable equipment, and any device using an analog Tip/Ring interface circuit. Supplied with the TRsSim software for Windows, it can analyze a telephone''s DTMF characteristics, pulse dialing and flash timing, generate various network tones and ringing patterns. Both Type I (on-hook) and Type II (off-hook) Caller ID is supported using either FSK or DTMF data transmission. As an optional component, the TRsSim software can perform SMS testing to either the ETSI protocol 1 or protocol 2 standards.
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Power Line Meter
The Line EMI Meter measures electromagnetic interference in a single-phase AC power line. It plugs into a wall outlet (mains socket) and requires no battery. It immediately displays total line noise in millivolts (range 1999 mV, resolution 1 mV) in the frequency range 10 KHz 10 MHz (the frequency limits at which sensitivity is of the maximum sensitivity). A speaker plays the sound of the EMI, amplitude demodulated, in order to identify the EMI source (such as an AM or shortwave radio station vs. a motor vs. an electric arc).
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Mic / Audio Line Tester
Qbox
Whirlwind Music Distributors, Inc.
The Qbox is the all-in-one audio line tester ideal for applications such as live sound, maintenance, installation work - anywhere audio runs down a cable. The Qbox can quick-check dynamic microphones and cables without firing up the entire system. It provides a handy mic or line-level tone for activating a signal path or identifying a specific cable in a pile of cable ends.
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