NSE AG

NSE AG
Bremgarterstrasse 54
CH-5610 Wohlen

Tel:0041 (0)56 618 77 99
Fax:0041 (0)56 618 77 90
E-Mail: info@nse.ch
Internet: www.nse.ch

KOMBISAVE RN / RD

Nondirectional (RN) or directional (RD) multifunctional protection with extensive control functions

Description
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SALES START AUTUMN 2011!

 

KOMBISAVE is a numerical protection relay and control unit for use in medium voltage distribution networks and industry. Its highly consolidated function range, subdivided into protection and control functions, offers considerable economic advantages for users‘ operations.

The familiar reliable technology from the DIGISAVE range is also implemented in KOMBISAVE. The device is controlled by means of self-explanatory menus, which means that manuals can largely be dispensed with in normal operations.

11 freely assignable LED and a comfortable, graphical QVGA-RGB-TFT display with substation visualisation render it possible to easily gain an overview of the status of the equipment. The protection functions can be parameterized directly on the device using the easy to understand human machine interface. For more complex applications and more effective configuration KOMBISAVE can be connected to a PC via USB and configured using DIGICOM Software.

KOMBISAVE meets the high standard expected of "swiss made quality" and fulfils all the homologation tests specified in IEC 60255.

Special Features
  • Mechanically compatible to DIGISAVE protection relays
  • All connectors pluggable
  • Easy to understand human machine interface
  • 11 configurable LED
  • Large, graphical QVGA-RGB-TFT display
  • No batteries
  • USB interface on the front
  • RS485 interface on the rear
  • Ethernet interface on the rear
  • IEC 60870-5-103 (RS-485)
  • IEC 60870-5-104 (Ethernet)
  • IEC 61850 (Ethernet) (planned)
  • Graphical system visualization
  • Advanced logic functionality
Function overview (KOMBISAVE RD)
Protective functions
  • 2-stage (non-)directional overcurrent time-graded protection (50,51)
  • 2-stage (non-)directional short-circuit protection (67)
  • 2-stage (non-)directional fault current detection (50N, 50G, 51N, 51G)
  • (Non-)directional overcurrent time-lag earth protection (67N)
  • (Non-)directional sensitive fault current detection (67Ns, 50Ns)
  • Displacement voltage (64)
  • 2-stage overload protection (49)
  • Inrush stabilisation (68)
  • Reclosure prevention (66/86)
  • Start-up time monitoring (48)
  • Unbalanced load protection (46)
  • Automatic reclosure ARC (79)
  • Switch on to fault protection (50SOTF)
  • 2-stage undervoltage and overvoltage protection (27/59)
  • 2-stage underfrequency and overfrequency protection (81O/U)
  • Rotatory field monitoring (47)
  • Lockout (86)
  • Undercurrent protection (37)
  • Circuit breaker failure protection (50BF)
  • Locked rotor protection (14)
  • Load jam protection (51M)
  • Busbar protection unsing H2 logic
  • QU protection
  • Trigger circuit monitor (74TC)
  • Fault locator (21FL)
  • Synchrocheck (optional) (25)

 

Monitoring functions
  • Operating measurements U, I, f, S, P, Q, cos(phi), thermal load
  • 15-minute-average maximum values
  • Events (1,000 entries)
  • fault logs COMTRADE V99
    (max. 8000ms total)
  • Extensive self tests and test functions
  • Extensive user-defined logic functionality
Communication interfaces
  • USB interface on the front
  • RS485 inteface on the rear
  • Ethernet inteface on the rear
  • IEC 60870-5-103 (RS-485)
  • IEC 60870-5-104 (Ethernet)
  • IEC 61850 (Ethernet) (planned)
Hardware
  • Compact sheet steel housing
  • Wide-range AC or DC power feed
  • 4 current converters (1A / 5A, configurable in software)
  • 4 voltage converters (100/110VAC)
  • 14 binary inputs (optocouplers)
  • 14 binary outputs (power relays)
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