GPS-1xx, RTS/GPS-2xx, SO-52v21-GPS, SO-5530/5540-GT — precise time sources and servers for substations
The company produces time signal sources and time servers GPS-1xx, RTS/GPS-2xx, SO-52v21-GPS-xx, SO-5530-GT/GT1 and SO-5540-GT. They synchronise protection relays, fault recorders, RTUs and SCADA at substations and power plants. Precise time is needed for recording events and faults and for phasor measurement systems.
- GPS-1xx
- UTC time signal source with an error < 1 μs; RS-232 and/or optics (glass/plastic) with a time mark line; 3 pulse outputs
- Reception
- up to 8 satellites
- RTS/GPS-2xx
- time server
- SO-52v21-GPS-xx
- time server on the SO-52v21 platform
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
GPS-1xx forms the UTC/GMT time reference from GPS signals, also determining the date and geographic position in three coordinates, regardless of where the receiver is installed in Poland, with an error of less than 1 μs. The device passes the current time over RS-232 and/or a multimode optical interface with glass or plastic fibre. Each interface, besides the transmit and receive lines, has an additional line of pulses that mark the transmitted time. 3 pulse outputs generate pulses at a set time and of a set duration, synchronised with GPS, and the first output has the smallest delay.
After switching on, GPS-1xx receives signals from a maximum of eight satellites in the field of view of the antenna, and until full synchronisation with at least three satellites it outputs time from its own clock. The antenna with a 15 m cable is placed outside the building, and the receiver itself can be located far from the computer. Parameters are set from the keyboard and LCD display, and the power comes from a 230V AC/DC unit. The device is designed for industrial use.
SO-52v21-GPS-xx works as a high-accuracy time server for substation automation devices and other industrial equipment. The source is an internal GPS/GLONASS receiver with an accuracy better than 20 ns, synchronisation in network protocols and in the 1PPS/NMEA standard is more accurate than 1 μs, and the pulse outputs give an accuracy better than 1 ms. The receiver outputs precise time even with a single satellite in view. Time is supplied as UTC through RS-485 (IRIG-J), RS-232 (NMEA with a separate 1PPS) and Ethernet ports (NTP, IEC-61850 or IEC-61588). Two independent discrete outputs form pulses with a duration from 10 ms to 1 s with a resolution of 1 ms. An example version is assembled on mCU-03-21 modules with interfaces to three Ethernet 100Base-TX channels, mHI-02-02 and mPS-11-91 for 18÷36V.
If the GPS signal disappears, RTS/GPS-2xx holds time with an accuracy of 50 ms for at least 24 h. The optional CSAC atomic frequency standard keeps the deviation from GPS time within 600 ns per day or 220 μs per year. Time is supplied as 1PPS, IRIG, NMEA, through an NTP/SNTP server and under PN-EN 61588 (PTP), and PN-EN 61850 and Modbus are also supported. A 230V AC analog input unit measures the network frequency. SO-5530-GT/GT1 and SO-5540-GT serve as time signal sources of the SO-5 system, and the company's controllers maintain continuous synchronisation with an accuracy better than 1 ms. Brochures are published for GPS-xxx, RTS/GPS-2xx and SO-52v21-GPS.
Technical specifications
| GPS-1xx | UTC time signal source with an error < 1 μs; RS-232 and/or optics (glass/plastic) with a time mark line; 3 pulse outputs |
|---|---|
| Reception | up to 8 satellites |
| RTS/GPS-2xx | time server |
| SO-52v21-GPS-xx | time server on the SO-52v21 platform |
| SO-5530-GT/GT1, SO-5540-GT | time signal sources |
Request a price and lead time
GPS-1xx, RTS/GPS-2xx, SO-52v21-GPS, SO-5530/5540-GT — precise time sources and servers for substations. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Customs codes
| UKTZED (Ukraine) | 8517 62 00 00 |
|---|---|
| HS, 6 digits | 8517 62 |
| CN (EU) | 8517 62 00 |
| HTSUS (USA) | 8517 62 00 90 |
| China customs tariff | 8517 62 99 00 |
Codes are for reference: the final code is determined at declaration for the specific model.
Questions and answers
What time accuracy does SO-52v21-GPS provide?
The internal GPS/GLONASS receiver has an accuracy better than 20 ns, and synchronisation in network protocols and by 1PPS/NMEA is more accurate than 1 μs. On the pulse outputs the accuracy is better than 1 ms.
Which synchronisation protocols does RTS/GPS-2xx support?
The device supplies time as 1PPS, IRIG, NMEA, through NTP/SNTP and under PN-EN 61588 (PTP). PN-EN 61850 and Modbus are also supported.
How does RTS/GPS-2xx behave when the GPS signal is lost?
The reference holds time with an accuracy of 50 ms for at least 24 h. With the CSAC atomic standard the deviation does not exceed 600 ns per day.
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