Camlin Profile P3

Preventing slow Circuit Breaker Trip: the challenge for asset managers

A slow circuit breaker trip, due to aging or poor maintenance can cause big problems for network operators and take customers off supply. Furthermore, a delay in the circuit breaker trip can cause high current faults to ‘cascade’ across the network, leading to;

• Plant damage
• Safety risks to operational staff
• Costly financial penalties

Conventional Circuit Breaker timing tests, which require the circuit breaker to be removed from service, don't provide an accurate assessment of the Circuit Breaker condition. Defects which may lead to slow trip operations are often temporarily cleared during the first Circuit Breaker operation, making it difficult to assess how the Circuit Breaker would perform in real-world fault conditions.

Key features

1. Powerful Onsite Analysis: PROFILE P3 can display and overlay up to 4 records in graphical form. This enables quick onsite analysis of potential circuit breaker defects by comparing a first trip or close profile to subsequent circuit breaker operations.
2. Combined Protection Relay and Circuit Breaker Online Test: An enhanced version of the software enables both the protection relay and circuit breaker trip times to be captured.
3. Multi-shot Mode: With this function PROFILE P3 is able to re-arm and capture multiple circuit breaker operations. This can be used for monitoring a circuit breaker during faults or SCADA initiated operations.
4. Automated Comparison Function: This provides a clear pass/fail (green/red) indication by determining if the key parameters – Buffer, Acon, Mcon are outside user set tolerances between the first, second and third trip operations.