The merging and control unit receives relevant status signals of traditional CBs and sends received signals to the secondary devices such as protective, monitoring & controlling and digital oscillography via a fiber optical interface. It also receives analog signals from traditional primary instrument transformers, voltage signals from the voltage merging units or digital signals of other merging units, and provides multiple secondary devices such as protective, monitoring & controlling equipment, digital watt-hour meter and digital oscillography with sampling information via a fiber Ethernet interface after synchronously processing all these signals. At the same time, it can receive the control commands from associated bay devices via a fiber Ethernet interface to achieve the operation and control of a CB. The data output formats conform to smart substation IEC61850 standard.
PRS-7395 can work together with CBs for three-phase linkage operation, main transformer or reactor body and busbar devices under the condition of double configuration. The device, with 4U enclosed design and strong anti-interference capacity, can be installed near a CB.
Modular design allows flexible configuration, strong interchangeability, and easy expansion, upgrade, and maintenance.
Adopts a 4U reinforced chassis with multi-layer shielding, strong/weak electrical isolation, and anti-vibration/interference design to withstand harsh environments.
Standard | IEC60225-1: 2009 |
Mounting Way | Flush mounted |
Merchanical size (width×high×deepth) | 482.6mm*177 mm *283 mm |
Housing material | Metallic plates, parts and screws: Steel Plastic parts: Polycarbonate |
Protection class | Front side:IP40 (IP52 with seal strip) Rear side, connection terminals: IP20 Other Sides: IP40 |
Communication Ports | Up to 12 Ethernet ports |
Communication Protocol | IEC61850, IEC60870-5-103, DNP3.0 |
Time Synchronization | SNTP, lEEE 1588, pulse per second (PPS) and IRlG-B |
Function | Sampling Digital Signal Binary Input DC Sampling Apparatus Control Time Synchronization Supervision Alarm |
