50FD Version C Fault Detector

DETECTS:
Transformer defects including: synchronous and non-synchronous partial discharge, loose parts, defective tap changers, flow restriction, turbulent flow in oil cooling pumps and high vibration levels.

ALSO DETECTS:
Air, Steam, Gas and Vacuum Leaks, Valve Leaks, Faulty Steam Traps, Worn or Dry Bearings, Tube Leaks inside Power & Recovery Boilers.

Analyze substation transformers for defects to avoid potentially dangerous conditions caused by partial discharge. Listen for the mechanical noises produced by loose parts and the destructive arching in tap changers. Monitor the oil cooling pumps for laminar flow, turbulent flow and flow restriction. Set up a predictive maintenance schedule to periodically test transformers to prevent costly maintenance and maintain safe operating conditions.

For professional Service, Information and Predictive Maintenance solutions for Substation, Switchyard and Power Plant equipment.

FDC Fault Detector
• Portable Instrument
• Specifically designed to detect and locate the source of internal anomalies in energized oil filled equipment
• Applications include cables, GIS, switchgear, CT’s, VT’s, transformers
• Designed for substation predictive maintenance
• Detects transformer defects
• Synchronous and non-synchronous partial discharges
• Loose parts, damaged bearings
• Defective tap changers
• Restricted & turbulent flow in oil cooling pumps
• Unusual vibration levels

Designed with Transformer Analysis as the primary function
• Transformers, Load Tap Changers, Pumps, Fans, Circuit Breaker Compressors, CT’s & VT’s
– Partial Discharge Benchmarking
– Arcing
– Event Detection
– Vibration Analysis
– Waveform Analysis
– Trending
– Route Planning
– Exception Reporting

Additional Applications
• Compressors
– Leaks
– Cylinder Condition
• Power Plant Valves of all types for inner or airborne leaks.
– Leak detection
– Route Trending
– Event Reporting
• Loose parts in a system
– Event Detection
• Cavitation in Pumps and Valves
– Event Detection
– Estimate of damage level.

How it Works
• Internal filters provide sensitivity to acoustic activity in the sonic & ultrasonic bands
• Dual band technique provides ability to listen to low-level activity with a headset
• Measures activity including arcing events and partial discharge on a graphics display

Synchronize Capability
• Can be synchronized from a local AC power source
• Displays the angular location of events within 10degees of arc on a 50 OR 60Hz power cycle
• Angular location helps determine the type and severity of the defect

Spectrum Analyzer
• An onboard Spectrum Analyzer & Waveform Monitor to capture the wave shape and frequency content of an event
• In the sonic mode the Spectrum Analyzer Displays the vibration spectrum in velocity (inches/sec)

Faults
• The acoustic & vibration measurements, coupled with measured levels of combustible gases in oil, provide early warnings and the extent of internal faults

Also detects
• Air, steam, gas and vacuum leaks, valve leaks, faulty steam traps, worn or dry bearings, tube leaks inside power & recovery boilers

Key Features
• Synchronized display of partial discharge events
• Amplitude measurement of peak events
• Partial discharge event counter
• Spectrum analysis & waveform monitor for peak events
• Vibration velocity measurement 10Hz to 1KHz in inches/sec
• Removable flash memory card
• Programmable on-screen & via PC
• On-line test of sensor & sensor cable

Selected Specifications
• Frequency bands: Vibration 10Hz-1KHz, Sonic 10Hz-12KHz, Ultrasonic 12KHz-400KHz
• Preset frequency band passes:3 sonic, 4 ultrasonic
• Custom band: Adjustable between 0.1KHz & 400KHz in 5% increments
• Spectrum digitizing range: 1KHz-1MHz
• Digitizing record size:512 to 4096 points
• Memory card: 128MB, 39 transformers
• Route planning and storage for fault development analysis