Power Generation: Time Sync & Timing Security
Unified time bases and satellite-timing protection for SCADA, DCS, PMU, smart meters and operational dispatch in thermal, hydro, nuclear and renewable power plants.
Sector Overview
For SCADA, DCS, PMU, smart meters, and ops dispatch in thermal, hydro, nuclear, and renewables, Yinzhong provides unified time bases and GNSS protection.
Generation-Side Timing Needs
- DCS / SCADA — plant-wide time, accurate SOE ordering
- Protection — fault recording ≤ 1 ms
- PMU — phasor sync ≤ 1 μs (GB/T 26865.2)
- AGC / AVC — consistent with provincial dispatch
- Metering — gate-meter time traceability
- Operations — control room procedures aligned
By Source
Thermal / gas turbine
- Distribution across control building + boosting + coal handling + water plant
- DCS integration (Siemens / Beijing Hollysys / SUPCON)
- Control-room giant time display
Hydro
- Harsh outdoor environment, lightning exposure
- Synchronisation across intake tunnel / dam / powerhouse
- BeiDou short-message for emergency comms
Nuclear
- Multi-layer consistency: main control / DCS / EDG / RPS
- Time separation between safety and non-safety class
Renewables (PV / wind)
- Booster / SVG / storage unified
- Remote ops time consistency
- Cross-province sync with dispatch
Yinzhong Stack
- Master/slave — YZ-9810, IRIG-B / PTP / NTP / 1PPS
- Protection — YZ-9770 for renewable outdoor sites
- Monitoring — YZ-9100 feeding plant "Two Tickets, Three Systems" inspections
- DCS adapters — ABB 800xA / Emerson Ovation / Siemens / Guodian iSmart
Inconsistent event-sequence timestamps between DCS and SCADA make post-incident reconstruction unreliable
Plant-level monitoring, smart meters and protection devices use a tangle of timing protocols — high commissioning and O&M costs
National Class-II counter-terrorism sites have explicit timing-security requirements; relying on open GPS alone is no longer compliant
New / retrofit plants need to layer next-gen timing systems on top of running equipment without downtime
All-Protocol Outputs
Concurrent IRIG-B(DC/AC), PPS/PPM/PPH, NTP, PTP, DCF77 and serial-text outputs — covers every DCS/SCADA/relay/metering timing port
Timing Security
YZ-9770 satellite signal security device detects and isolates spoofing, jamming and suppression — meets the "electronic protection" requirement for Class-II counter-terrorism sites
Hot-Standby Upgrade
Supports running new and legacy devices in parallel for staged migration with zero-downtime cutover
Optional Holdover
Choice of OCXO or rubidium atomic clock — sustains long-duration high-accuracy holdover under GNSS denial
Thermal Plant Timing Security
Configured YZ-9770 timing security devices on anti-drone systems at multiple thermal plants, safeguarding the authenticity of dispatch time bases.
Hydro Class-II Counter-Terrorism Compliance
Deployed electronic-protection timing security per GA1800.3 (Counter-Terrorism Requirements for Power Systems — Part 3: Hydropower Enterprises).
Find the right model
Our engineers combine your site topology, protocols and alarm logic to recommend the right model and customisation.