- Protection, Automation & Control
- Protection & Control
- Digital Substation
- Energy Management
- Power Stability Control
- Software Kit
Transmission Line Protection
PCS-993 Out-of-Step Controller
Power systems are required to remain stable after experiencing any disturbance, which may be caused by a fault, loss of a generator, or loss of a transmission line. Some disturbances may cause out-of-step between the interconnected systems, which may lead to blackouts and equipment damages if no remedial measures are taken to prevent this. In order to avoid these results, the PCS-993 out-of-step controller presents an effective way to prevent system collapse caused by out-of-step.
When the out-of-step condition is detected, the PCS-993 controller will take corresponding actions to maintain a balance between load and generation. These measures include tripping associated circuit breakers to separate the power system into two or more smaller islands at the pre-selected points, shutting down some generators, shedding appropriate loads and triggering other related synchronizers preparing for the system synchronism after the system separation.
The PCS-993 controller adopts the advanced multi-processor platform, supporting IEC 61850-8-1 MMS. In addition, it incorporates the RJ-45 faceplate port for testing and setting in order to make commissioning and maintenance easier.