Digitalization of electrical substations using IEC 61850 is a major topic today and has been for at least the last decade. Many industry events, including Georgia Tech Fault and Disturbance and Protective Relaying Conferences, PAC World Global Conference and CIGRE Session discuss the great benefits and challenges involved. This goes hand in hand with topics such as distributed renewable generation and inverter-based resources, short circuit fault current contribution, power system stability and inertia, time synchronization, wide area measurement systems, communications and cybersecurity and centralized and virtualized protection and control. There has never been a greater need for high quality, versatile and reliable monitoring solutions to ensure that power systems perform as required.
AMETEK Power Instruments’ TR-3000 and DR-300 are multi-function digital fault recorders that not only support the traditional hard-wired analog and digital inputs, but also IEC 61850 Station Bus and Process Bus virtual inputs. All of the following functions use both hard-wired and IEC 61850 virtual inputs in the same records and protocols:
- High speed transient fault triggered and continuous recording (FR)
- Slow scan disturbance triggered and continuous recording (DDR)
- Sequence of events recording (SER)
- Class A power quality
- Synchrophasors (PMU)
- DNP3
To maintain an accurate record of events for triggered transient records, different sample rate data is stored in separate files without resampling. These can be resampled and merged during analysis if needed.
IEC 61850-8-1 Station Bus Ed 2.1
Utilizing the standard product hardware, up to 256 virtual digital inputs can be mapped to published GOOSE messages from other substation IEDs. This provides the same functionality for triggering, logging and protocols as hard-wired digital inputs. GOOSE messages for alarms and hard-wired digital inputs are published for other IEDs to subscribe to. Using the IEC 61850 MMS protocol, you can download the records and continuous logger data. Analog and digital measurements and derived values such as sequence components and power are also available by buffered and unbuffered reports.
IEC 61850-9-2 Process Bus Ed 2.1
One chassis can support up to four Process Bus Input Modules making each capable of subscribing to 24 Sampled Values analog input channels at 80 samples per cycle (IEC 61850-9-2 LE) and 32 GOOSE messages. In total, one chassis provides up to 96 analog and 128 digital Process Bus inputs with additional capacity for hard-wired input modules. IEC 61869-9 and IEC 61850-9-2 profiles are supported giving greater flexibility and more efficient use of data packets.
PTP - IEEE 1588 with C37.238 and 61850-9-3 profiles
Precision Time Protocol (PTP) is becoming the most important method of time synchronization between substation IEDs, especially in digital substations. The TR-3000 and DR-300 support IEEE 1588 with the IEEE C37.238 Power Profile and the IEC 61850-9-3 Power Utility Profile. PTP gives the time accuracy required for IEEE/IEC 60255-118-1 synchrophasors. TR-3000 and DR-300 support PTP, GPS and IRIG-B all at the same time with automatic failover to the next preferred time synchronization source with timestamped entries in the event log for traceability.
PRP and HSR Redundancy Protocols
The TR-3000 and DR-300 support the redundancy protocols defined in EIC 62439-3 without external RedBox devices. LAN A and LAN B Process Bus and Station Bus electrical or fiber optic connections are supported.
Environmental Standards
TR-3000 and DR-300 both comply with the safety and EMC standards defined in IEC 61850-3 and protection relay standards 60255-26 and 60255-27.
To learn more about how the TR-3000 and DR-300 can support fault and disturbance analysis in IEC 61850 substations, contact us.