The protection relay or bay unit in cooperates the point-on-wave switching for minimizing the electro-dynamic and dielectric stress of operational equipment as consequence of switching operations and thereof extend the lifetime and increase the system reliability. It operates the CB pole-selectively and determines the optimal switching instance for each phase / pole individually for circuit breaker supporting phase-selective
switching

Applications

Protection relay or bay unit in cooperation with the point-on-wave switching function for

• Transformers
• Shunt reactors
• Capacitor banks
• Filter bank
• Transmission lines (without series compensation)

Features

• Close and/or open the circuit breaker in each pole individually with timed output activation (contact) with a switching-time accuracy of ~ 50 µs.
• Automatically set of the switching angles by the configuration system for the selected switching object
• Initiation of the point-on-wave function either a) via the device internal control function or b) from external via physical binary input
• For at least 128 switching operations oscillography recording with at least 4 kHz sampling frequency shall supported
• Possibility of evaluation of Circuit Breaker reference contacts for monitoring the mechanical switching time of the CB accurately (detection of variation over time, prediction of failure).
• Switching time compensation features for, control voltage of CB closing and opening circuit, ambient temperature and hydraulic CB pressure

• Ruggedized design and conformal coated electronical boards for high electric strength and installations in harsh environments - as standard
• Optional arc protection with a tripping time of 3-4 ms for protection of assets and personal – Safety first
• Easy integration and retrofit of arc protection, transient ground-fault detection, transformer control, PMU and process bus for efficient network operation
• Single-Line representation selectable in small or large display
• Graphical logic editor to create powerful automation functions and switching sequences in the device according IEC 61131-3 standard
• Detection of current and voltage signals up to the 50th harmonic with high accuracy for selected protection functions and operational measured values
• Integrated electrical Ethernet RJ45 for Engineering PC and IEC 61850 (reporting and GOOSE)
• Two slots for optional plug-in modules for serial and/or Ethernet-based protocols
• Optional communication module with further 3 slots plug-in modules for serial and/or Ethernet-based protocols and full availability of the communication ring when the switchgear is enabled for servicing operations by means of separate auxiliary power supply of the communication module
• Large number of serial and Ethernet-based protocols: IEC 60870-5-103, DNP3 serial and TCP, Modbus TCP, IEC 60870-5-104, PROFINET, and IEC 61850 Ed1 and Ed2.1
• Reliable data transmission via Ethernet redundancy protocols PRP and HSR, for process bus and high-availability station communication
• IoT interface for integration in cloud based systems
• Serial protection data communication via optical fibers, two- wire connections and communication networks (SDH networks, MPLS electrical power systems, for example using IEEE C37.94, and others), including automatic switchover between ring and chain topology.
• Powerful fault recording (buffer for a max. record time of 80 sec. at 8 kHz or 320 sec. at 2 kHz)
• Easy, fast and secure access to device via Web-Browser from the device: Download of logs as files according IEEE C37.239 COMFEDE with https connection

Fault recording: Download, delete and triggering of fault records

Displaying of Single line diagrams and device display pages, indications,

vector diagrams of energizing quantities

Parameterization: Change of settings within an active setting-group

• Optional Phasor Measurement Unit (PMU) for detection of Synchrophasor measured values and transmission with standard IEEE C37.118 protocol
• Time Synchronization with IEEE 1558v2/PTP, PPS, IRIG-B
• Role-based Access Control (RBAC) with central user management in RADIUS/Active Directory
• Protection against unauthorized access to device through inbuilt RADIUS authentication and authorization option
• Standard roles and rights in adherence to standards and guidelines such as IEC 62351-8, IEEE 1686 and BDEW White paper
• Syslog support for central recording and logging of security-relevant events and alarms in accordance with the requirements and regulations such as IEEE 1686, IEC 62443 and BDEW Whitepaper
• Individual Assignment of write and read permission for each device port
• Auxiliary functions for simple tests and commissioning

Housing

Robust hardware in the form of a closed housing for maximum strength in terms of voltage, EMC, climate and mechanical stress in accordance with the IEC 60255 product standard and an extended temperature range of -25°C to + 70°C.

Additional conformal coating of the electronic components for maximum availability even under extreme environmental conditions

Housing width 1/3 x 19 inches to 2/1 x 19 inches with large, small or without display. Flexible adjustable and expandable I/O quantity structure within the scope of the system with 1/6 expansion modules.

Type of housing:

X Flush mounting

O Surface mounting

Operation panel:

X Integrated

O Detached HMI, only for surface mounting housing

Type of display:

O No display

X Small Display

O Large Display

Key switch:

X without

O with, only for flush mounting housing

LEDs/Push buttons:

X 16 LEDs

O 32 LED

O 48 LED

O 64 LED

O 80 LED

O 8 Push buttons + LEDs

Binary inputs and outputs / measuring inputs

The number of inputs and outputs is flexible and expandable with 1/6 expansion modules plugged on the 1/3 base unit of a modular system.

X 11 BI, 9 BO, 4 CT, 4 VT, 1/3 x 19 inches

O 27 BI, 17 BO, 4 CT, 4 VT, 1/2 x 19 inches

O 43 BI, 25 BO, 4 CT, 4 VT, 2/3 x 19 inches

O 59 BI, 33 BO, 4 CT, 4 VT, 5/6 x 19 inches

O 75 BI, 41 BO, 4 CT, 4 VT, 1/1 x 19 inches

O 67 BI, 39 BO, 8 CT, 8 VT, 1/1 x 19 inches

Rated auxiliary voltage

O 24, 48 V DC

X 60 to 250 V DC and 115 to 230 V ACCommunication

The base unit has two free slots on the rear for plug-in modules for communication or special applications. The base unit is expandable with a communication module with up to three further slots for plug-in modules.

• USB operator interface on the front for notebook or PC
• D-Sub 9-interface, rear for time synchronization
• Integrated Ethernet interface
  X for Engineering Tool
  O for Engineering Tool and IEC 61850 Reporting and GOOSE
  O for Engineering Tool and IEC 61850 Reporting
• Communication module, max 1 for each device with additional 3 slots plug-in modules for serial and/or Ethernet-based protocols and full availability of the communication ring when the switchgear is enabled for servicing operations by means of separate auxiliary power supply of the communication module
  X without
  O with one communication module for up to three additional plug-in modules
• Serial Plug-In modules for asynchronous serial protocols like IEC 60870-5-103, DNP for system port
  X Without
  O electrical, 1 interface
  O electrical, 2 interface
  O optical 820 nm, 1.5 to 2km ,1 interface
  O optical 820 nm, 1.5 km to 2km, 2 interface
• Serial Plug-in modules for protection interface for unidirectional data exchange

X without
O optical 1300 nm, max. 24 km via 2 single mode optical fibers or
  max. 4 km via 2 multimode optical fibers, 1 interface
O optical 1300 nm, max. 24 km via 2 single mode optical fibers or max. 4 km
  via 2 multimode optical fibers, 2 interface
O optical 1300 nm, max. 60 km via single mode optical fiber, 1 interface
O optical 1300 nm, 60 km via single mode optical fiber, 2 interface
O optical 1550nm, 100 km via single mode optical fiber, 1 interface
O optical 1550nm, 100 km via single mode optical fiber , 2 interface

• Serial Plug-in modules for protection interface for bidirectional data exchange
  O without

O optical 1300 nm, max. 40 km via one single- mode optical fiber

  (with integrated fiber-optic multiplexer, 1 interface)
O optical 1300 nm, max. 40 km via one single- mode optical fiber

  (with integrated fiber-optic multiplexer, 2 interface)

O optical 1550 nm, max. 40 km via one single- mode optical fiber

  (with integrated fiber-optic multiplexer, 1 interface)
O optical 1550 nm, max. 40 km via one single- mode optical fiber

  (with integrated fiber-optic multiplexer, 2 interface)

• Plug-in Modules for Ethernet

O Without

O 2x RJ45 electrical, configurable with or without integrated switch

  with max. distance of 20 meters
O 2x optical duplex LC 1300 nm interface, configurable with or without

  integrated switch. The maximum optically permitted distance via 50/125 µm

  or 62.5/125 µm multimode optical fibers is 2 km.

  The optical transmission and receiving level are measured in the module

  And can be displayed

O 2x optical for process bus, duplex LC 1300 nm interface, configurable with

  or without integrated switch. The maximum optically permitted distance

  via 50/125 µm or 62.5/125 µm multimode optical fibers is 2 km.

  The optical transmission and receiving level are measured in the module and  

  can be displayed.

  Remark: The standard multimode SFP for 2km can be replaced with Additional

  electrical SFP for up to 20m and or optical SFP for up to 24 km

In accordance with the selected communication interface the required communication protocol should be easily activated via the engineering tool depending on the selected type of serial or Ethernet plug-in module

• Serial protocols
  IEC 60870-5-103
  DNP3 serial
• Ethernet protocols

IEC 61850 Edition 2.1
IEC 61850-8-1 Client-Sever Communication

IEC 61850-8-1 GOOSE

IEC 61850-9-2 Merging Unit

IEC 61850-9-2 Process-Bus Client
IEC 60870-5-104
DNP3 TCP
Modbus TCP
PROFINET IO
IEEE C37.118 protocol (Synchrophasor, PMU)

• Additional Ethernet protocols and services
  DHCP, DCP (with automatic IP configuration)

Line mode
RSTP, PRP, HSR Ethernet ring redundancy

SNTP time synchronization via Ethernet

SNMP V3 network management protocol

IEEE 1588v2 PTP protocol via Ethernet

Plug-in modules for various applications
O Measuring-transducer module with four 20-mA analog inputs
O Arc protection module with up to 3 optical point or line sensors per

  arc protection plug-in module, up to max. 15 sensors for modular devices

  X Point sensors with line lengths from 3 m to 35 m.

  O Line sensors detect arcs along the entire sensor length.

    Lengths from 5 m to 40 m are available.

    Line sensors are connected via a line to the arc protection module.