HIGHLY PORTABLE FAULT LOCATION SYSTEM FOR MV NETWORKS | EZ-THUMP 12 kV, model V2
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EZ-THUMP™ Model V2 12 kV Portable Cable Fault Location System ■ Compact, lightweight, all-in-one, rugged portable cable fault locating system ■ Battery and AC line operation; field-replaceable battery ■ Automatic cable end, fault location, and sectionalizing (optional in certain markets) ■ Single-stage capacitor surge discharge: 500 J @ 12 kV ■ F-OHM safety feature to ensure safe grounding ■ HiBrite color display for outdoor visibility ■ ARM® prelocation of high resistance/flashover faults ■ Fault pinpointing, high resistive fault ■ Sheath testing and sheath fault locating DESCRIPTION The EZ-THUMP 12 kV model is a compact and lightweight, battery and AC line operated, portable cable fault location system. It is designed for quick, effective, accurate and safe fault locating operations to greatly reduce system customer outage minutes. Due to its portable and robust enclosure, it is ideally suited for all typical fault locating operations on MV cables. The 12 kV model is typically used as part of a "satellite" fault locating concept for remote areas that may have less frequent faults, when simple operation, light weight and economics are important, or for hard to access inner-city locations. The unit typically requires no adjustments and is operated via the unique and easy to follow E-TRAY GUI and a rotary control knob. It guides the user automatically through the entire fault locating process, starting with a Hipot Test and followed by both a Prelocation and Pinpointing step. During this 3 step process the test data will be stored and used in non-typical fault locating situations to interpret the result and provide advice to the user of what to do next. FEATURES: ■ TDR method to prelocate very low resistance cable faults, either phase to phase or phase to neutral, or by pair comparison ■ Arc Reflection Method (ARM®) prelocation of high resistance flashover faults. ■ Single stage 500 Joule surge generator for pinpointing of high resistive faults up to 12kV ■ DC testing for breakdown detection. ■ Insulation resistance measurement. ■ Sheath testing and sheath fault locating. APPLICATIONS HV Testing (proof/insulation testing, sheath testing) Used to test the dielectric strength of the cable or sheath insulation and, if the test fails, to determine the breakdown voltage. For this purpose a test voltage up to 12 kV (sheath test typically limited to 5kV) is applied to the cable under test indicating the resistan

EZ-THUMP™ Model V2 12 kV Portable Cable Fault Location System Fault prelocation After identifying the type of fault as high resistance/ flashover, prelocation of any concentric neutral type MV cable can be determined using ARM. In ARM, the arc of the flashover creates a temporary "jumper " to the neutral ground. During this condition, a standard TDR measurement is made into what is basically a short circuit fault providing a negative reflection at the location of the fault. Faults identified as very low resistance/non flashover in shielded cables can be prelocated using the TDR...

EZ-THUMP™ Model V2 12k\/ Portable Cable Fault Location System ORDERING INFORMATION NOTE: Prep kit feature C and permanently attached cart feature WK are mutually exclusive. * Software options can be combined in any way **Prep kit accommodates either cable lengths of 15 ft (4.5 m) or 50 ft (15 m) ***Permanently attached cart accommodates either cable lengths of 15 ft (4.5 m) or 50 ft (15 m) SALES OFFICE EZ ThumpModelV2-12kV_DS_US_V02 Dallas, TX 75237-1019 USA The word 'Megger' is a registered trademark