Siemens Siprotec 5 Numerical Relay

The line differential protection relay SIPROTEC 7SD82 is part of the new SIPROTEC 5 series of modular field devices. 

This device is especially designed for cost effective and compact medium voltage and sub-transmission application areas. With its flexibility and its high-performance DIGSI 5 engineering tool, the SIPROTEC 7SD82 fits perfectly for protection, control, monitoring, and measuring applications in electrical energy systems
Main function:Line differential protection for medium and sub-transmission
Inputs and outputs:

4 current transformers,

4 voltage transformers (optional),

11 or 23 binary inputs,

9 or 16 binary outputs

Hardware flexibility:Various hardware quantity structures are available for binary inputs and outputs in the 1/3 base module, it is not possible to add 1/6 expansion modules,available with large and small display
 
All functions can be configured freely with DIGSI 5. For the application of some of the functions, you require the appropriate number of free function points within the device. The function point calculator in the online configurator provides support in determining the required number of function points for your device.

Minimal tripping time 19 MS

Main protection function is differential protection with adaptive algorithm for maximum sensitivity and stability even at different CT errors, CT saturation and capacitive charging currents

Directional backup protection and various additional functions

Recognition of static, intermittent and transient ground faults (transient function) in resonant-grounded and isolated networks

Detection of CT saturation for fast tripping and high accuracy at the same time

Arc protection

Power protection, configurable as active or reactive power protection

Undervoltage-controlled reactive power protection

Control, synchrocheck and system interlocking

Powerful automation with graphical CFC (Continuous Function Chart)

Support of single line in small and large displays

Integrated electrical Ethernet port J for DIGSI and com-plete IEC 61850 functionality (reporting and GOOSE)

Two optional pluggable communication modules usable for different and redundant protocols (IEC 61850, IEC 60870-5-103, IEC 60870-5-104, Modbus TCP, DNP3 (serial and TCP)

Serial protection data communication over fiber-optic cable, two-wire connections and communication networks (IEEE C37.94 et al.) including automatic switch over between ring and chain topology

High available Ethernet redundancy protocols PRP and HSR

Cyber Security acc. NERC CIP and BDEW Whitepaper

Phasor Measurement Unit (PMU) for synchrophasor-measured values and IEEE C37.118 protocol

Time synchronization using IEEE 1588

Powerful fault recording

Additional functions for simple tests and easy commissioning

The SIPROTEC 6MD86 bay controller is a universal control and automation device with a protection function. It is designed for use in all voltage levels from distribution to transmission. As a part of the SIPROTEC 5 family, it allows the use of a large number of protection functions from the SIPROTEC library. Adapt the hardware and the IO quantity structure exactly to your requirements and enable future-oriented system solutions with high investment security and low operating costs. Main function: Bay controller for medium voltage and high to extra-high voltage switchgear with integrated operation and comprehensive protection functions. Powerful automation, simple configuration with DIGSI 5. Inputs and outputs: 6 predefined standard variants with 8 current transformers, 8 voltage transformers, 11 to 75 binary inputs,9 to 41 binary Outputs. Hardware flexibility: Flexible adjustable and expandable I/O quantity structure within the scope of the SIPROTEC 5 modular system. For great requirements placed on the quantity structure, the device can be extended in the 2nd row. For example, 240 (and more) binary inputs are possible with the IO230 (see Hardware section). Housing width: 1/3 × 19" to 2/1 × 19"

Main function: Inputs and outputs

Inputs and outputs:

• 5 predefined standard variants with 4 current transformers,
  4 voltage transformers,
  11 to 75 binary inputs,
  9 to 41 binary Outputs

Hardware flexibility:

• Flexibly adjustable and expandable I/O quantity structure within the scope of the SIPROTEC 5 modular system. For great requirements placed on the quantity structure, the device can be extended in the second row. For example, this permits an additional 240 binary inputs (and more) to be used with the IO230 (see chapter "Hardware")

Housing width:

• 1/3 × 19" to 2/1 × 19"

The feeder and overcurrent protection SIPROTEC 7SJ86 is part of the new SIPROTEC 5 series of modular, flexible and intelligent digital field devices.

With its modularity and flexibility and its high-performance DIGSI 5 engineering tool, the SIPROTEC 7SJ86 fits perfectly for protection, control, monitoring, and measuring applications in electrical energy systems and for reserve or emergency protection for the line protection devices.

Inputs and outputs:

• 3 predefined standard variants with 4/4
• current/voltage transformers,
• 11 to 23 binary inputs,
• 9 to 25 binary outputs

Hardware flexibility:Flexibly adjustable and expandable I/O quantity structure within the scope of the SIPROTEC 5 modular system

All functions can be configured freely with DIGSI 5. For the application of some of the functions, you require the appropriate number of free function points within the device. The function point calculator in the online configurator provides support in determining the required number of function points for your device.

• Overcurrent protection with 3-pole tripping
• Optimization of the tripping times by direction comparison and protection data communication
• Recognition of static, intermitting and transient ground faults (transient function) in resonant-grounded and iso-lated networks
• Arc protection
• Overvoltage and undervoltage protection
• Frequency protection and frequency change protection for load shedding applications
• Power protection, configurable as active or reactive power protection
• Protection functions for capacitor banks, e.g. overcurrent, thermal overload, current unbalance, peak overvoltage or differential protection
• Undervoltage-controlled reactive power protection
• Control, synchrocheck and system interlocking
• Circuit-breaker failure protection
• Circuit-breaker restrike protection
• Powerful automation with graphical CFC (Continuous Function Chart)
• Support of single line in small and large displays
• Integrated electrical Ethernet port J for DIGSI and IEC 61850 functionality (reporting)
• Two optional pluggable communication modules, usable for different and redundant protocols (IEC 61850, IEC 60870-5-103, IEC 60870-5-104, Modbus TCP, DNP3 (serial and TCP)
• Serial protection data communication via fiber-optic cable, two-wire connections and communication net-works (IEEE C37.94 et al.) including automatic switch between ring and chain topology
• High available Ethernet redundancy protocols PRP and HSR
• Cyber Security acc. NERC CIP and BDEW Whitepaper
• Phasor Measurement Unit (PMU) for synchrophasor-measured values and IEEE C37.118 protocol
• Time synchronization using IEEE 1588
• Powerful fault recording
• Additional functions for simple tests and easy commissioning.

The distance protection relay SIPROTEC 7SA82 is part of the new SIPROTEC 5 series of modular field devices.

This device is especially designed for cost effective and compact medium-voltage and sub-transmission application areas.

With its flexibility and its high-performance DIGSI 5 engineering tool, the SIPROTEC 7SA82 fits perfectly for protection, control, monitoring, and measuring applications in electrical energy systems.

Main function:SIPROTEC DistanceProtection for medium a sub-transmission

Tripping:3-pole, min. tripping time 19 ms

Inputs and outputs:

• 4 current transformers,
• 4 voltage transformers (optional),
• 11 or 23 binary inputs,
• 9 or 16 binary outputs

Hardware flexibility:Various hardware quantity structures are available for binary inputs and outputs in the 1/3 base module, it is not possible to add 1/6 expansion modules, available with large and small display.

Width of housing:1/3 x 19''''

All functions can be configured freely with DIGSI 5. For the application of some of the functions, you require the appropriate number of free function points within the device. The function point calculator in the online configurator provides support in determining the required number of function points for your device.

• Minimal tripping time 19 MS
• 6 independent measuring circuits (6 system distance protection)
• Diverse distance protection methods available:
• Classic, reactance method (RMD), impedance protection for transformers
• Directional backup protection and various additional functions
• Recognition of static, intermittent and transient ground faults (transient function) in resonant-grounded and iso-lated networks
• Adaptive power swing blocking
• Detection of CT saturation for fast tripping and high accuracy at the same time
• Arc protection
• Power protection, configurable as active or reactive power protection
• Undervoltage-controlled reactive power protection
• Control, synchrocheck and system interlocking
• Powerful automation with graphical CFC (Continuous Function Chart)
• Support of single line in small and large displays
• Integrated electrical Ethernet port J for DIGSI and com-plete IEC 61850 functionality (reporting and GOOSE)
• Two optional pluggable communication modules, usable for different and redundant protocols (IEC 61850, IEC 60870-5-103, IEC 60870-5-104, Modbus TCP, DNP3 (serial and TCP)
• Serial protection data communication via fiber-optic cable, two-wire connections and communication net-works (IEEE C37.94 et al.) including automatic switch between ring and chain topology
• High available Ethernet redundancy protocols PRP and HSR
• Cyber Security acc. NERC CIP and BDEW Whitepaper
• Phasor Measurement Unit (PMU) for synchrophasor-measured values and IEEE C37.118 protocol
• Time synchronization using IEEE 1588
• Powerful fault recording
• Additional functions for simple tests and easy commis-sioning

Siemens ARC Protection Solution; Siprotec and Reyrolle arc protection is a technique employed for the fast clearance of arcing faults on busbars and within metal clad switchgear and associated cable boxes and offers a comprehensive Siemens general protection system. The arc is detected using an optical sensor & the signal input to a protection device which also monitors the load current on the system. Conventional current based protection techniques are at times challenged by the nature of arcing faults, and can result in slow protection clearance times. Slow protection clearance times increase the risk to nearby personnel and increase the degree of damage to plant and equipment. By employing an optical detection technique, arc fault protection results in fast clearance of arcing faults.

SIPROTEC and Reyrolle arc protection solutions

Optical arc detection for SIPROTEC 5

Electric arcs are among the most dreaded fault scenarios in power supply engineering. They can be caused by a multitude of factors, such as aging of the insulation, environmental conditions as well as operating errors. Electric arcs can cause heavy damage to switchgear and present a serious hazard to operating personnel. The SIPROTEC 5 arc protection detects electric arcs through an optical sensor. Arcs are detected reliably and quickly as they develop, and the protective device can trip immediately and without delay times.

Arc protection offers:

• Immediate detection of arcs in air-insulated compartments of switchgears by optical sensors
• Instantaneous trip in arc fault situations limits damage to switchgear
• The arc protection system is suited for use at all voltage Levels

Exchangeable plug-in modules

Detection of arcs is either purely optical, or optionally using an additional current criterion to avoid overfunctioning.

The arc protection module is part of the new SIPROTEC 5 series of modular, flexible and intelligent bay devices and can be used in the following device types:

• SIPROTEC 7SJ8
• SIPROTEC 7SA8
• SIPROTEC 7SD8
• SIPROTEC 7SL8
• SIPROTEC 7VK8
• SIPROTEC 7UT8
• SIPROTEC 7SK8
• SIPROTEC 7UM8
• SIPROTEC 7SS8

Within an air insulated switchgear the sensors are placed in such a way that arcs in the busbar compartment, the circuit breaker compartment and the cable connection department are reliably detected.

Up to 3 optical point or line sensors can be connected per plug-in module, which means a total of up to 15 sensors on modular SIPROTEC 5 devices. Point sensors are available with connecting cable lengths between 3 m and 35 m. Line sensors detect arcs along the whole sensor length. They are available from 5 m to 40 m. Line sensors are connected through a supply line to the arc protection module. The supply lines are available from 3 m to 10 m.

Benefits

• Reliable arc detection
• Extremely fast tripping time
• Minimization of thermal damage
• Higher personal safety
• Minimization of downtimes
• EMI safety thanks to purely optical sensors
• Quick and easy retrofitting

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