Applications: Detection of dangerous partial discharges (PD) Mode for differential measurement with respect to PD fault location Diagnostics on HV apparatus in field (for instance cable sealing ends and joints, surge arrestors, power transformers, voltage transformers and electrical machines) Evaluation of the PD behaviour of low voltage components (for instance in the case of opto-couplers, capacitors, transformers and motors)

User Benefits

• Battery powered portable device for both, on-site and laboratory PD diagnosis
• Low Cost PD detector for research and development
  
  

Specifications:

• Detection of the electromagnetic transients of PD events
• Measuring the PD quantity "apparent charge"
• Exchangeable capacitive and inductive sensors
• Potentialfree signal transmission via fibre optic link
• Noise reduction mode
• Measuring sensitivity if charges pulses are directly injected : 0,05 pC
• Gain steps : 1, 2, 5, 10
• Vernier range : 1 : 5
• Output (CHARGE) at full load
• Pulse shape : triangular, positive
• Pulse magnitude : 4 V approx.
• Pulse rise time : < 2 µs
• Pulse duration : 50 µs approx.
• Noise level : < 0,2 V
• Pulse resolution performance for superposition error < 30%
• Pulse repetition rate : < 100 kHz
• Double pulse distance : > 2 µs
• Power supply : 8 Mignon batteries (LR6)
• Dimensions : 220 × 60 × 100
• Weight : 1 kg approx.