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The Megger Smart Thump ST25-30 portable/vehicle mount cable fault locating system is a safe, efficient, and extremely easy-to-use solution for quickly identifying, pre-locating, and pinpointing a range of different types of cable faults in power cables. This instrument is ideal for operations departments of power utility companies, electrical departments within municipalities, private network operators, high voltage electrical contractors, service companies, port authorities, mining, airports, military bases, petrochemical companies, and paper companies.
The ST25-30 has been developed to meet the requirements for typical medium voltage distribution cable fault location markets from 11 to 35 kV system voltage and incorporates “E-Tray” technology, an automatic test sequence that helps proof test, pre-locate, and pinpoint faults.
The ST25-30 represents a new generation of advanced underground cable fault locating systems that require less training than a traditional thumper-only system while providing the big advantage of displaying the distance to the fault.
The 'turn and click' rotary button operation lets you automatically proof test, pre-locate, and pinpoint the fault from one convenient control console. No adjustments are typically required. The unit automatically sets the thump voltage to minimise the stress applied to the cable. The ST25-30 features an automatic safety check to protect you from incorrect or faulty connections (F-Ohm). The heavy-duty wheels of the unit are ideal for use in rough terrain. The IP53 rating allows operation in wet environments. The ST25-30 can also be permanently installed in a vehicle (truck mount version).
Key Features
- Delivers 1600 J at 12.5/25 kV
- 30 kV DC high voltage proof/burn and displays insulation resistance
- E-Tray automatic test sequence to proof test, pre-locate, and pinpoint
- ARC reflection MV cable pre-location
- ICE MV cable pre-location
- Multi-shot technology for ARM
- Earth gradient LV fault locating and sheath fault locating
- Interprets test results for the user
- 7.0 in. HiBrite color display
- IP53 rating for wet environments
- Safety / grounding check
- USB interface
Datasheets
Smart Thump ST25-30 | |
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Energy Output | Dual stage: 1600 J @ 12.5 kV and 25 kV |
Proof test: 0 to 30 kV continuous | |
Burn current: 40 mA max continuous output | |
Key Features | Single-shot thump in ARM |
Multishot TDR in ARM | |
Built-in inductive type ARM filter | |
8-second thump cycle @ max output energy | |
Automatic cable, and system discharging and grounding | |
Display Features | HiBrite TFT color display, sunlight proof |
7.0 in., 1280 x 800 pixel resolution | |
Power Options | 120/230 V, 60/50 Hz ac operation (incl. isolation transformer if no internal battery |
12 V deep cycle marine battery with internal dc charger/inverter | |
12 V external battery terminals | |
SMART Features | Entirely automatic test sequences include proof test, pre-locate, and pinpoint |
Automatic interpretation regarding the type of fault (i.e. open, burnt in the clear, short) | |
Automatic adjustment of thump voltage | |
Automatic alphanumeric display of cable end and fault distance | |
USB | Host interface 2.0 for TDR trace export and system upgrades |
Mounting and Enclosure | Mounted on a cart with heavy-duty 15-in. air tires or permanently vehicle-mounted |
Rain tight powder coated enclosure | |
Digital “Analog” Meter | Displayed on the LCD screen |
Environmental | Operating Temperature: -20℃ to +50℃; -4℉ to +122℉ |
Storage Temperature: -25℃ to +65℃; -13℉ to +149℉ | |
IP Rating | IP53 (with top open) |
Reviews
SKU | ST25-M |
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Manufacturer Part Code | ST25-M |