MEGGER PFL22M1500 Portable Cable Fault Location System

In order to minimize system interruptions and lost minutes, the Megger PFL22M1500 Power Cable Fault Locator is made to deliver fast, efficient, precise, and secure fault location.

The device is housed in a portable, yet sturdy, housing. Because of its IP64 classification, it may be used even in harsh environmental conditions.

FEATURES AND BENEFITS

Innovative MTDRl 00 mounted in the lid features:

• Single knob Qog-dial) control
• Large easy-to-view color (XGA) display
• Auto ranging
• Cable library

Multiple fault loca ing techniques:

• Pre-location
• Pulse echo
• Arc reflection
• Arc reflection plus
• Differential arc reflection
• Impulse current

Pinpoint:

• Surge/voltage impulse

High-voltage module:

• 2-range
• Safety interlocks
• HV on indicator

APPLICATIONS

HV Testing (proof/insulation testing)

• Used to discover and validate fault conditions in cable networks and to demonstrate their integrity. Sheath testing at 5 or 10 kV can also be done with the variable output voltage.

Fault Pre-location

After identifying the ype of fault, pre-location of the fault position can be determined using the following methods:

• A TDR uses impulse current (ICE), arc reflection, and pulse echo to pre-locate cable defects. The operator is guided through the fault locating process by the MTDR 100’s auto-ranging, auto distance to fault, and operator assist capabilities.
• Faults are stabilized in the Arc reflection mode by constructing a makeshift “bridge” to the earth. A typical pulse echo measurement is made under these circumstances, which are essentially interpreted as short circuit faults.
• The ability to see and analyze up to 1024 traces (range dependant) taken during the arc period is an additional benefit that Arc Reflection Plus offers the operator.
• Unwanted and confusing reflections are eliminated during differential arc reflection mode, providing a clean trace with only the fault position and point shown by a positive pulse. This technique works particularly well for identifying high-resistance defects in intricate cable networks.