FUNCTIONALITY
PKUS SKO is the teleprotection equipment for command transmission via digital channels.

Main function:
Teleprotection command transmission via o telecom networks (SDH/PDH, MPLS, etc.) with C37.94 and E1 interfaces o direct optical fibers (the distance of up to 240 km, the distance may be increased using optical amplifiers) o CWDM/DWDM systems o radio links.

PKU SKO features
Up to 16 transmitted and up to 16 received commands,
User configurable data rate for command transfer (min. 64 kbps, max. 1984 kbps; up to 8 commands at 64 kbps),
4.5 ms transmission time at 64 kbps (Dependability of 10-4 and Security of 10-30 in worst case),
Dual line interface (on request): two electrical E1 (HDB3, G.704) or two optical E1 (CMI, G.704) / C37.94,
Optical interfaces with SFP transceivers,
Point-to-point and point-to-multipoint applications via direct optical fibers and communication networks,
Up to 6 independent duplex links in point-to-multipoint applications via communication networks with cross connection on time slot level of E1,
Normal and Inverse T-operation for a protection of power lines with T-offs,
Seamless 1+1 path (primary and secondary paths) protection with switchover time of 0 ms,
Cyclic (configurable) and Manual (activated by User Interface Program PKUSConvereter) Loop test,
Addressing facility preventing unwanted operation due to accidental channel crossovers in telecom network,
Compatible with PKUS SR24 Teleprotection equipment with Control and monitoring panel on channel level,
Integrated nonvolatile and not editable event recorder for transmitted and received command, alarms and user manipulations with 1 ms time stamps from internal Real Time Clock,
Optional synchronization of Real Time Clock from IRIG-B input,
Upload, text and graphical display of all events recoded in PKUS SKO,
All events can be saved to not editable file or COMTRADE file,
IEC 60870-5-101, IEC 60870-5-104 and SNMP for SCADA,
Windows® compatible User Interface Program PKUSConverter o configuration (on-line and off-line downloadable files) o changing the configuration is password protected o testing and commissioning.

ADVANTAGES

Transmission time, dependability and security comply with or exceed the requirements of IEC 60834-1 “Teleprotection equipment of power systems. Performance and testing. Part 1. Command systems”,

PKUS SKO complies with or exceeds the requirements of Russian and international EMC standards,

Compact case with a height of 1U=44.45 mm for installation on 19-inches frame.