Megger EZ-THUMP 12kV TDR Portable Cable Fault Locator System For MV Networks
Features:
Aside from the expert mode, the quick-step mode is especially convenient where users may not operate the unit on a regular basis.
Automatic fault locating procedure.
Operating of unit via unique E-Tray GUI and rotary control knob.
Automatic end of cable and distance to fault location.
Automatic sectionalizing (for specific markets).
Automatic breakdown detection.
Key switch safety interlock standard (available also without).
Operation from internal battery or from an AC source, featuring simultaneous AC operation and battery charging
Rugged, lightweight, high impact resistant IP53 designed enclosure for wet outdoor applications.
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
Specifications:
Testing 0 – 12 kV, 12 mA DC
Prelocation TDR: Phased to Phase, Phase to Neutral, on screen comparison of up to 256 pairs Range: 25,000 ft (7.6 km) Sampling Rate: 100 Mhz Resolution: 2.5 ft @ 250 ft/ƒs 0.8 m @ 80 m/µs
Arc Reflection: 0 – 12 kV
Pinpoint Fault Location Surge: 0 - 12 kV @ 500 J
Impulse Sequence: 5 - 10 seconds or single shot
Display 5.7 in. (14.48 cm) HiBrite TFT Color LCD 640 x 480 pixel
Memory 1000 traces
Interface USB Port
Cable Supplied 15 ft (4.5 m) HV flexible shielded cable
15 ft (4.5 m) safety ground cable
6 ft (1.8 m) AV supply lead set (US/Schuko/UK plug)
Terminations T1 (typically North America): 14 mm male MC for HV output with matching hotline clamp attachment; HV return and safety ground with hooks and matching hotline clamp attachment.
T2 (typically North America): same as T1, however, hotline clamp attachments for HV output and HV return are replaced by vise grip attachments.
T3 (typically UK): The HV output and the HV return leads are terminated with hardwired battery clamps.
T4 (typically all other countries): 10 mm female MC for HV output and HV return with matching battery clamp attachments, safety ground with hook and matching hotline clamp attachments
Supply Battery: Internal 24 V NiMH Battery 5 AH Approx. 30 - 60 mins of surge/thumping Approx. 3 hours recharge time
Charger: Internal, 100-240 VAC – 24 VDC charger
AC Line: 100 – 230 VAC ±50/60 Hz
Safety Emergency stop
Key-switch safety Interlock, standard (available also without)
F-OHM detection /indication “proper grounding"
Environmental Operating Temperature: -4° F to 122° F (-20° C to +50° C)
Storage Temperature: -12° F to 160° F (-25° C to +70° C)