Multilin Agile Motor (P24N/D) Protection Series

Multilin Agile Feeder P24DB Functional Block Diagram

Advanced Communications

Three communication ports are standard: a rear serial port providing remote communications, a front USB port and rear Ethernet for device configuration and management.

Two additional Ethernet ports can be ordered to achieve Ethernet communication redundancy.

Supported Communication Protocols Include:

• Modbus (RS485 serial or Ethernet)
• IEC 60870-5-103
• DNP 3.0 (RS485 serial or Ethernet)
• IEC 61850 Ed. 2 with concurrent serial connection
• Redundant Ethernet protocols PRP, HSR, and failover also available with dual RJ45 or dual fiber media

Flexible Hardware

• Space-saving 4U height with 4” (20TE) and 6“ (30TE) case size options
• Wide choice of opto-isolated binary inputs and output relays
• Binary inputs ESI 48-4 EB2 compliant – avoids spurious pickup from induction on field wiring
• High density I/Os in various combinations depending on case size option
• Ungrouped binary inputs for trip circuit supervision
• Field upgradeable, avoiding costly hardware change
• 6” (30TE) models can accommodate:
  • 1 x RS485/IRIG-B interface
  • Up to 3 x RJ45/fiber optic ports for single and redundant Ethernet plus additional engineering access
  • From 11 to 30 binary inputs, and 9 to 25 relay outputs, depending on the order code
• 4” (20TE) models can accommodate:
  • 1 x RS485/IRIG-B interface
  • 1 x RS485 additional interface
  • Up to 3 x RJ45/fiber optic ports for single and redundant Ethernet plus additional engineering access
  • Up to 11 binary inputs and 11 binary outputs or 14 binary inputs and 9 binary outputs, depending on the order code

Simulation & Testing

To aid commissioning, a simulation feature is provided to test the relay’s functionality and response to programmed conditions, without the need for external AC voltage and current inputs. When placed in simulation mode, the relay suspends reading actual AC inputs, generates samples to represent the programmed phasors, and loads these samples into the memory to be processed by the relay. Normal (pre-fault), fault, and post-fault conditions can be simulated to exercise a variety of relay features. Other test operations - such as an LED lamp test for each color, contact input states, and testing of output relays - are also possible.

Application Model Selection