PROFILE IP3 (Independent Pole)
Circuit Breaker Analyser
PROFILE IP3 is designed specifically for circuit breakers with an independent pole per phase and provides a unique insight into their true condition. Capturing the vital ‘first trip’ on all three poles simultaneously, along with powerful analysis, shows how the breaker would perform in a real-life fault situation.
Today many utilities use transmission line Single-Pole Tripping (SPT) and Single-Pole Reclosing (SPR) to enhance power system stability and reliability. In many power systems, tripping and reclosing all three phases for single phase to ground faults may cause the system to lose synchronism under certain operating conditions.
Three pole tripping and reclosing are necessary for multiphase faults, however for single phase earth faults which are the most frequent, it is possible to trip and reclose the faulted phase while keeping the healthy phases energised.
Test Result On PROFILE IP3
After an IP (Independent Pole) test has been completed, results will be displayed on the PROFILE P3 as shown below.
The values of the key parameters, such as Buffer, Acon & Mcon can be individually selected and displayed for each phase.
Analysing Test Results on PROFILE IP3
After tests have been completed they can be saved for subsequent retrieval from the Auxilary menu. The key parameters for each phase are displayed in tabular form as shown below.
A record can be selected and graphed, which displays a Trip / Close profile for each phase as shown below.
Up to four test records can be graphed for comparison and analysis as shown below. The First Trip / Close profiles on any phase can be compared with subsequent Trip / Close profiles.