The Fault Wizard from Innovative Utility Products is a versatile and portable fault locator that uses arc reflection technology. It helps to localize faults in direct buried cables and display the distance to the faulted portion of the cabling. It also has other features that help make troubleshooting underground cable fast and easy.
The HV Diagnostics EZ-Cable ID Test Instrumentallows electrical testing personnel to accurately and effectively identify either one or three cables or cores anywhere along the length of the cable in one identification process. This can be done on both single phase and three phase networks. In addition to identifying the correct cable and phase, the resultant current and frequency in a cable can also be measured by the instrument.
The test set consists of 3 main items: A receive (Rx), transmitter (Tx), and inductive clamp/s, all housed in a rugged, injection molded carrying case. The instrument is extremely easy to use and can be powered by either the internal battery, AC mains or from an auxiliary 12V DC supply. The receiver has a backlit LCD display, is battery operated, housed in a rugged, rubber holster and has a flexible pickup coil to easily wrap around cables.
The three cables that make up a 3 phase circuit can be placed in different formations. Typical configurations include the trefoil or triangular and the flat formation. The choice will depend on several factors like screen bonding method, conductor area and available space for installation.
In past blogs we discussed methods for localizing and pinpointing faults on medium and high voltage electric power cables. These methods focused on the use of high voltage surge generators (thumpers), high voltage radar techniques (arc reflection) plus electromagnetic and acoustic pinpointing. These techniques work well for medium and high resistance faults on shielded cable structures, but do not lend themselves to low voltage cables or pilot cables (signal and control lines).
The Megger SG32-1500M Power Cable Fault Locatoris a portable cable fault location and high voltage test system designed to provide quick, effective, accurate and safe fault location, thereby reducing system outages and time lost.
The Megger SG32-1500M is housed in a rugged yet portable enclosure, which makes it suitable for use in and outdoor conditions.
The Amprobe AT-2005-A Advanced Wire Tracernot only has the ability to trace live wires, buried or hidden behind walls, up to 13 feet deep, without interrupting power, It’s also a great tool locating breakers, neutrals and zeroing in on shorts, ground faults, and broken wires.
A versatile tool, the Amprobe AT-2005-A provides the ability to solve virtually all tracing problems, and since this electrical wire tracer doesn’t interfere with sensitive electronic equipment it’s safe to use in data centers.
The Amprobe AT-7020 Advanced Wire Tracer Kit includes the SC-7000 Signal Clamp, and utilizes patented Smart Sensor feature to instantly display the location and orientation of energized wires in walls, floors, and ceilings.
The direction of the wire is clearly displayed on the large, bright TFT LCD full color display, and the AT-7020 offers two automatically-selected frequency modes for optimal tracing on energized and de-energized circuits, and three power modes (high, low, clamp) for a variety of environments.