Breaker Management Device
SIPROTEC 5 base module with large display
The breaker management device SIPROTEC 7VK87 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 7VK87 fits perfectly for protection, control, monitoring, and measuring applications in electrical energy systems.
Automatic reclosing, synchrocheck, circuit-breaker failure protection
1- and 3-pole or 3-pole
Inputs and outputs:
12 predefined standard variants with 4/4 or 8/8 current/voltage transformers,
5 to 31 binary inputs,
8 to 46 binary outputs
Flexibly adjustable I/O quantity structure within the scope of the SIPROTEC 5 modular system
Width of housing:
1/3 x 19'' to 2/1 x 19''
Alll 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.
Automatic reclosing function and synchrocheck for line protection applications with 1- and 3-pole tripping
Circuit-breaker failure protection, 1-/3-pole
Control, synchrocheck and system interlocking
Voltage controller for transformers
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)
Up to four 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 net-works (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 IEEE 1588
Powerful fault recording
Additional functions for simple tests and easy commis-sioning
Adjustable I/O quantity within the scope of the SIPROTEC 5 modular system
The breaker management device SIPROTEC 7VK87 is a universal protection, control and automation device on the basis of the SIPROTEC 5 system. It is especially designed for the management of breakers after tripping.
Typical applications are:
Automatic reclosing after 1- or 3-pole tripping
Synchronization check before closing
Circuit breaker protection
Switchgears with breaker-and-a-half schemes
Backup overcurrent and voltage protection
Serial protection data communication over different distances and physical media such as fiber-optic cable, 2-wire connections and communication networks
Phasor Measurement Unit (PMU)
The device supports all SIPROTEC 5 system characteristics. It enables future-oriented system solutions with high investment security and low operating costs.
Application templates are available in DIGSI for standard applications. They comprise all basic configurations and default settings.
The following application templates are available:
Basic circuit-breaker management device