Delivering speed and security for advanced transmission line protection.
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LPS Line Protection System - Legacy
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MiCOM Agile P842 - Legacy
Mesh-corner DAR
Manufacturing for this product has been discontinued. As an alternative, please refer to C264 with mesh corner DAR logic.
MiCOM Agile P842 - Legacy
Mesh-corner DAR
Manufacturing for this product has been discontinued. As an alternative, please refer to C264 with mesh corner DAR logic.
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MiCOM Agile P547 - Legacy
Phase Comparison System
Manufacturing for P547 has been discontinued. As an alternative, please refer to L60.
MiCOM Agile P547 - Legacy
Phase Comparison System
Manufacturing for P547 has been discontinued. As an alternative, please refer to L60.
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MiCOM Agile P541 & P542 - Legacy
Line Differential Protection Systems
Optimum selectivity is assured, as the scheme measures the currents entering and leaving the protected plant item. Instantaneous tripping results for an internal fault, with stability for any out-of-zone fault. Tripping uses a proven characteristic comparing differential current with through current, for ease of testing. Phase differential elements of this type offer consistent detection of solid and resistive faults, with optimum faulted phase selection, tripping, and indication.
Key benefits:
- Phase segregated differential with proven biased characteristic for distribution/sub-transmission networks
- Graphical programmable scheme logic (PSL) eases protection scheme creation, and avoids the need for external logic controllers
- Comprehensive communication options, ideal relay for the step from pilot wire to fiber or multiplexed end-end communications
MiCOM Agile P541 & P542 Models
P541 and P542 are under last-time buy. Orders may be placed until 29th December 2024 and will be fulfilled based upon availability. As an alternative, please refer to P54.
P541 Line-Differential Protection IED, in 40TE case
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P542 Line-Differential Protection IED with Autoreclose, in 60TE case
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MLP Digital Distance Protection (Discontinued)
The MLP is a digital distance protection system. This powerful protection system is more cost effective than an installation using conventional equipment. Its main application is in subtransport and distribution lines of up to 66 kV and 132 kV for lines with three phase tripping, at distances of up to 150 km. Its capacity to register events, along with its control and monitoring capabilities, make it especially suitable for use in unattended substations, as it eliminates the need to send technicians to the site to collect data and reset the relay.
MLP Digital Distance Protection (Discontinued)
The MLP is a digital distance protection system. This powerful protection system is more cost effective than an installation using conventional equipment. Its main application is in subtransport and distribution lines of up to 66 kV and 132 kV for lines with three phase tripping, at distances of up to 150 km. Its capacity to register events, along with its control and monitoring capabilities, make it especially suitable for use in unattended substations, as it eliminates the need to send technicians to the site to collect data and reset the relay.
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DLPD Digital Line Protection System
The DLPD provides distance protection for HV and EHV transmission lines. It may be used for single or three phase tripping applications. It includes four zones of distance protection. User selectable pilot schemes are provided with step distance backup. Ground instantaneous and time overcurrent
DLPD Digital Line Protection System
The DLPD provides distance protection for HV and EHV transmission lines. It may be used for single or three phase tripping applications. It includes four zones of distance protection. User selectable pilot schemes are provided with step distance backup. Ground instantaneous and time overcurrent
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D90Plus – Legacy
Manufacturing for this product has been discontinued. As an alternative, please refer to the D60 with Firmware 7.7 or newer and User Interface Option E: 7” Graphical Front Panel Display.
D90Plus – Legacy
Manufacturing for this product has been discontinued. As an alternative, please refer to the D60 with Firmware 7.7 or newer and User Interface Option E: 7” Graphical Front Panel Display.
Key Features
- Secure time-domain algorithm providing sub-cycle distance protection
- Phase distance with independent compensation settings for in-zone power transformers
- Ground distance with independent self and mutual zero-sequence compensation
- Out-of-step tripping and power swing blocking
- Directional overcurrent: phase, neutral and negative sequence
- Wattmetric zero-sequence directional power
- Under/over frequency
- Synchronism check for dual-breaker applications
- Single/three-pole four-shot dual-breaker autorecloser
- Customization of protection and control functions with independent protection FlexLogic™, FlexCurves™, and FlexElements™
- Advanced automation controller with independent automation programmable logic
- Bay control through front panel HMI
Protection & Control
Modern power systems are under increasing constraints in their ability to transmit power from generation facilities to major load centers, and are forced to operate closer to their natural stability limits. Under these conditions, the critical clearing angle – and corresponding critical clearing time – become progressively smaller and there is an increasing need to minimize the fault clearing time on these constrained circuits.
The D90Plus is ideally suited for application on circuits where fast fault detection and small breaker failure margin are required. The D90Plus allows transmission limits to be maintained or even increased while respecting the transient stability limits of the power system.
Key Features
- Continuous monitoring of AC input channels
- Metering - current, voltage, frequency, power, energy and synchrophasors as per IEEE C37.118
- Transient recorder - 128 samples/cycle, 1 minute or more of storage capacity
- Disturbance recorder – 1 sample/cycle, 5 minutes or more of storage capacity
- Event recorder - 8000 time tagged events, with 0.5 ms scan of digital inputs
- Comprehensive display of metering, phasors, maintenance and fault information via the front panel
Monitoring & Diagnostics
The D90Plus includes detailed metering and recording for all AC signals. Voltage, current, and power metering are built into the relay as a standard feature. Current and voltage parameters are available as total RMS magnitude, and as fundamental frequency magnitude and angle.
Digital fault recorder summary with the latest information on the events, faults, transients and disturbances.
Control screen for the pre-configured bay with breaker & disconnect control in multiple pages using dedicated pushbuttons on the front panel.
Advanced Automation
The D90Plus incorporates advanced automation features including powerful FlexLogic™ (user programmable logic) independent for protection and automation schemes. Combined with the communication capabilities, the D90Plus provides an advanced, highly flexible platform for substation automation applications. The D90Plus integrates seamlessly with other relays for distributed applications like interlocking and special protection schemes.
D90Plus user programmable protection logic and independent automation logic allows users to build custom protection and automation schemes.
Key Features
- Multiple protocols - IEC 61850, DNP 3.0 Level 2, Modbus RTU, Modbus TCP/IP, IEC 60870-5-104
- Up to three independent IP addresses
- Increase network availability by reducing failover time to zero through IEC62439-3 "PRP" support
- Front USB port for high-speed communications
Advanced Communications
The D90Plus provides for secure remote data and engineering access, making it easy and flexible to use and integrate into new and existing infrastructures. Fiber optic Ethernet provides high-bandwidth communications allowing for low-latency controls and high-speed file transfers of relay fault and event record information. The availability of three independently configurable Ethernet options provide the means to create fault tolerant communication architectures in an easy, cost-effective manner. The D90Plus supports the most popular industry standard protocols enabling easy, direct integration into SCADA systems.
- IEC 61850
- DNP 3.0
- Ethernet Global Data (EGD)
- IEC 60870-5-104
- Modbus RTU, Modbus TCP/IP
- PRP as per IEC 62439-3
Front Panel
EnerVista™ Software
The EnerVista™ suite is an industry-leading set of software programs that simplifies every aspect of using the D90Plus relay. The EnerVista™ suite provides all the tools to monitor the status of the protected asset, maintain the relay, and integrate information measured by the D90Plus into DCS or SCADA monitoring systems. Convenient COMTRADE and Sequence of Events viewers are an integral part of the UR setup software included with every UR relay, to carry out postmortem event analysis and ensure proper protection system operation. Learn More
Security - Enabling NERC CIP Comliance
Access Control
Multilin devices and relays are designed with simple but powerful security to enable reliability and compliance for virtually any project or implementation. With support for multi-level permissions and multi-factor supervisory controls, Multilin devices can help you manage the integrity of your system during commissioning, testing, implementation, and beyond. The UR and URPlus families provide separate authentication for settings and commands to the system. In addition, as discrete authentications for local and remote access, they also provide a supervisory control factor that can lock or unlock a device for configuration changes and other modifications.
Intrusion Detection
Multilin’s family of protection and control products can also help enable your security perimeter and intrusion detection programs. By providing essential alarming and logging of critical events, Multilin devices can help you detect potential breaches within your system and allow you to respond quickly and effectively. Specifically, unsuccessful access attempts are logged, alarmed, and lead to potential attackers being locked out. This ensures the reliability of your system during questionable activity, and a control factor that can lock or unlock a device for configuration changes and other modifications.
Auditing and Reporting
With the security audit trail reporting feature and support for event logging of key
activities such as configuration changes, Multilin devices can help ensure device and
protection system integrity, and perform forensic auditing of activities and changes
for compliance.
Enhanced Sub-Cycle Distance Protection
- Sub-cycle quadrilateral characteristic added for applications where this characteristic is preferred over the mho characteristic
- True digital CCVT filter to remove voltage transients introduced and provide accurate voltage information for distance protection – requires only three relay settings
Software Ease-of-Use:
EnerVista Viewpoint Engineer now available for graphical configuration of Protection and Automation FlexLogic™
Security Enhancements - Enabling NERC CIP compliance:
- Dual permission access requiring live permission from both the user and from SCADA operators before settings can be changed or commands can be given to the relay
- Remote and local setting and control passwords
- Configurable lockout responses to unsuccessful password access attempts
- Successful password access logged in events record
- Logging of user commands in the security audit trail report creates a record and sequence of events log for troubleshooting and security auditing
New and Enhanced Communications Capabilities
PRP as per IEC62439-3
High-Density I/O Options:
- New high density I/O option modules featuring either 23 optically isolated inputs or 12 Form-A outputs
- Ideal for applications like bay control and monitoring, where a large number of additional I/O are required
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