1. Power Systems Protection Test Equipment

2. PCA2 Protection Condition Analyser

3. What is it? All-in-one quick tester for Breaker & Protection
Can test circuit Online or Offline
Provides all data required for CBM / RCM maintenance programs
Secondary Current Injection Set with timer

4. What does it test? Relay Op-Time
Breaker Op-Time & Condition (+ reclose)
Trip coil current profile
Battery Condition, CT & Wiring Integrity
‘Snapshot’ of entire protection & breaker system in actual, live operation

5. Connections Only 2-wires + clip-on CT Substation wiring not altered
No connections broken or removed
More connections gives more info
No need for test blocks

6. Connections – In use

7. Online Testing – Why? Captures critical ‘First Trip’
Minimal Outage Time – can use reclose
Protection remains active to point of trip
Quick, cost-effective

8. Online Injection – How? Software based control-loop
Feedback from clip-on CT
Synchronised to Zero-crossing of load current

9. Background Developed with EDF Energy UK 1000’s of 11 & 33kV circuits
Alternative to manual injection trip-testing
Safer
Combined test with Relay Op-Time
Single instrument
Modern, on-site results viewing, printing & archiving

10. Results Instant oscillographic & numeric display
On-screen measurements
IEEE COMTRADE format
Saved to internal Flash or USB-drive
PC display using any COMTRADE viewer
Built-in printer

11. Results Oscillographic Results Numerical Results TRLY: Relay Op time
LTCH: Trip latch release time
BFFR: Time when TC slug reaches stop
ACON: Time the ‘a’ contact interrupts the TC current
END: Time when TC current reaches zero
MCON: Time of transition of main interrupter contacts
IPK1: Amplitude of first current peak
IPLT: Max current peak
VINI: Initial battery voltage
VMIN: Minimum battery voltage

12. Typical Faults/Impending Faults Identified

13. Conclusion Single multipurpose instrument Rapid Testing
Online test (first trip)
Archived test results
On-site printout
Enables cost-effective CBM / RCM program