The universal protection device is especially designed with the highest degree of flexibility within one device type for protection, control and automation in the medium voltage and distribution grids with 3-pole tripping.

Applications

• One device type capable for protection and automation of all types of feeders, lines, motors, and capacitor banks, with 3-pole operation
• One device type capable for the following main protection functionalities:
  overcurrent protection, distance protection, line differential protection, motor protection, and capacitor bank protection and all associated automation functions

Scope and adoption of Functionality

• The universal device can be ordered with a license file to already support the desired specific application
• Alternatively, the universal device can be ordered with a license file supporting only a minimum base functionality (with minimum price), not yet containing main protection functionality (for stock and spare part scenarios)
• The universal device functionality can be adopted / expanded (via the device license file) by the user at any time within minutes, when the application is determined or changing

Features:

• Directional and non-directional overcurrent protection of feeders, with additional functions
• Distance protection with a wide variety of excitation methods
• Differential protection of overhead lines and cables of all lengths with up to 6-line ends fed from one or more sides
• Motor protection against short circuits, all kinds of thermal overload, unbalances, and instabilities, and blocked or idle driving conditions
• Directional detection of ground faults of any type in isolated or arc-suppression-coil grounded power systems
• Protection functions for capacitor banks, such as current-unbalance, peak overvoltage, overcurrent, or overload
• Arc protection with a tripping time of 3-4 ms for protection of assets and personal – Safety first
• Overoltage and undervoltage protection, with all methods
• Frequency protection and frequency-change protection
• Automatic frequency unloading for load shedding in case of underfrequency, considering changed feed-in conditions due to decentralized power generation
• Power protection, with all methods
• Synchronization of 2 power grids
• Automatics, controls, synchrocheck and protection against switching faults
• Voltage controller function for power transformers (two-winding and three-winding transformers)
• Phasor Measurement Unit (PMU) for detection of Synchrophasor measured values and transmission with standard IEEE C37.118 protocol
• Protection data communication over different distances and physical media, such as fiber optic cables, two-wire connections and communication networks

• Detection of current and voltage signals up to the 50th harmonic with high accuracy for selected protection functions and operational measured values
• Powerful fault recording (buffer for a max. record time of 80 sec. at 8 kHz or 320 sec. at 2 kHz)
• Ruggedized design and conformal coated electronical boards for high electric strength and installations in harsh environments - as standard
• Easy integration and retrofit of arc protection, transient ground-fault detection, transformer control, PMU and process bus for efficient network operation
• Single-Line representation on a large graphical display
• Graphical logic editor to create powerful automation functions and switching sequences in the device according to IEC 61131-3 standard
• 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
• 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
• IoT interface for integration in cloud-based systems
• Easy, fast and secure access to device via Web-Browser from the device: Download of logs as files according to 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
• 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 inch with large display, not expandable.

Type of housing:

X Flush mounting

Operation panel:

X Integrated

Type of display:

X Large Display

Key switch:

X without

LEDs/Push buttons:

X 16 LEDs

Binary inputs and outputs / measuring inputs

The number of inputs and outputs is flexible and adaptable within the 1/3 base unit of a modular system.

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

O 23 BI, 16 BO, 4 CT, 4 VT, 1/3 x 19 inch

Rated auxiliary voltage

X DC 60 to 125 V

O DC 110 V-250 V, AC 100V - 230 V

Communication

The base unit has two free slots on the rear for plug-in modules for communication or special applications.

• 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
• 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 interfaces
  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 interfaces

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 interfaces

O optical 1550nm, 100 km via single mode optical fiber, 1 interface

O optical 1550nm, 100 km via single mode optical fiber, 2 interfaces

• Serial Plug-in modules for protection interface for bidirectional data exchange

X 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 interfaces)

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 interfaces)

• Plug-in Modules for Ethernet

X 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.

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 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

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.

Functionality

The protection device is equipped with the following protection functions:

X Basic functions

• 3-pole tripping
• Overcurrent protection, ground (50N/51N TD)
• Instantaneous tripping at switch onto fault SOTF
• Temperature supervision (38)
• Temperature acquisition via communication protocol
• Lockout (86)
• Standard measured values
• Switching statistic counters
• Fault recording of analog and binary signals
• Slow-scan recorder
• Continuous recorder
• Trend recorder
• Monitoring and Supervision
• Logic editor (CFC)
• Broken-wire detection for differential protection

Optional functions

O Distance protection distribution (21/21N)

O Distance protection (21/21N)

O Automatic adjustment of the synchronization voltage when using a tap changer

O Overexcitation protection (24)

O Synchrocheck, synchronization function (25)

O Undervoltage protection "3-phase" or "positive-sequence system V1" or "universal Vx" (27)

O Rate-of-voltage-change protection (27R,59R)

O Undervoltage-controlled reactive power protection

O Power protection active/reactive power (32,37)

O Reverse-power protection (32R)

O Undercurrent (37)

O Negative-sequence system overcurrent protection (46)

O Unbalanced-load protection (thermal) (46)

O Negative-sequence system overcurrent protection with direction (46)

O Overvoltage protection, “negative sequence system V2” or “negative-sequence V2/positive-sequence V1” (47)

O Starting-time supervision for motors, locked rotors (48/14)

O Thermal overload protection (49)

O Thermal overload protection for RLC filter elements of a capacitor bank (49)

O Hot spot calculation (49H)

O Thermal overload rotor protection (motor) (49R)

O Overcurrent protection, phases (50/51TD)

O Instantaneous high-current tripping (50HS)

O Overcurrent protection with positive-sequence current I1 (50/51TD)

O Overcurrent protection, 1-ohase (50N/51N TD)

O Sensitive ground-current detection for systems with resonant or isolated neutral systems incl. a)3I0>, b)admittance Y0>, c)3I0-harm> (50Ns/51Ns)

O Ground-fault detection via pulse pattern detection
O Intermittent ground-fault protection

O Overcurrent protection for RLC elements of a capacitor bank (50/51 TD)

O Inadvertent energization protection (50/27)

O Circuit breaker failure protection, 3-pole (50BF)

O Circuit breaker restrike protection (50RS)

O Load-jam protection (50L)

O Overcurrent protection, voltage dependent (51V)

O Overvoltage protection "3-phase" or "zero-sequence system V0" or
"universal Vx"(59/59N)

O Peak overvoltage protection, 3-phase for capacitors (59C)

O Neutral-point Voltage-Unbalance Protection (59NU)

O Restart inhibit for motors (66)

O Directional overcurrent protection, phases (67)

O Directional overcurrent protection, ground (67N)

O Directional overcurrent protection for ground faults in grounded systems(67N)

O Directional sensitive ground-fault detection for systems with resonant or
isolated neutral incl. a) 3I0>, b) V0>, c) Cos-/SinPhi,
d) Transient ground fault fct, e)Phi(V,I), f)admittance (67Ns)

O Directional stage with a harmonic

O Directional Intermittent ground-fault protection

O Power-swing blocking (68)

O Trip-circuit supervision (74TC)

O Out-of-step protection [ΔZ/Δt]

O Closed-circuit supervision supervision (74CC)

O Automatic reclosing, 3-pole (79)

O Frequency protection "f>" or "f<" or "df/dt" (81)

O Under Frequency Load Shedding (81U)

O Vector-jump protection

O Universal teleprotection scheme for distance protection (85/21)

O Teleprotection for distance protection: Blocking (85/21)

O Teleprotection for distance protection: Rev. interlocking (85/21)

O Teleprotection for distance protection: Perm. Overreach (85/21)

O Teleprotection for distance protection: Perm. Underreach (85/21)

O Weak or no infeed echo and tripping (85/27)

O Universal teleprotection scheme for directional ground fault protection (85/67N)

O Teleprotection for directional gnd.flt.prot.: Blocking (85/67N)

O Teleprotection for directional gnd.flt.prot.: Dir. Comparison (85/67N)

O Restricted ground-fault protection (87N T)

O Line differential protection for 2 line ends (87L)

O Line differential protection: IN unrestrained for stages I2, IN (87L)

O Line differential protection for more than 2-line ends (87L)

O Line differential protection including power transformer (87L/87T)

O Line differential protection option with charging-current compensation

O Automatic Voltage controller for two-winding transformer(90V)

O Automatic Voltage controller for two-winding transformer with parallel operation (90V)

O Fault locator – single ended

O Fault locator “plus” - double ended

O Synchrophaser measurement PMU

O Arc-protection (only with plug-in module ARC-CD-3FO)

O Measured values - extended: Min, Max, Avg

O PQ Basic measured values: THD and harmonics, THT voltage aggregation values

O PQ-Basic measured values: Voltage unbalance

O PQ-Basic measured values: Voltage variations – voltage dips, swells and interruptions

O PQ-Basic measured values: VTDD – Total Demand Distortion

O CFC arithmetic

O Circuit breaker wear monitoring

O Control of circuit-breaker and further switches

O Switching sequences function

O Inrush current detection

O 2nd harmonic detection

O External trip initiation

O Protection interface serial up to 6 ends
Note: Plug-in module for communication is required

O Cyber Security: Role Base Access Control (RBAC)

O Cyber Security: IEEE 802.1x based network authentication