LINETRAXX® VMD460-NA

Network and system protection with default basic programs for national standards and regulations
G99/1-4:2019
G98/1-4:2019
Island network detection df/dt (ROCOF) vector shift
Interface RS-485 (data exchange/parameter setting)
Continuous monitoring of the phase voltage and line-to-line voltage
Remote shutdown via ripple control signal receiver

The VMD460-NA is an external network and system protection (NS protection) the purpose of which is to disconnect the power generation system from the grid by coupling switches in the event of inadmissible threshold values. If voltage and frequency measurements on the power generation system are outside the thresholds required in the standards, the relays of the VMD460-NA will switch. The VMD460-NA is multifunctionally adjustable.

The currently measured values are continuously shown on the LC display. The measured values leading to the tripping of the relays are stored.

Questions? Contact us!

Network and system protection with default basic programs for national standards and regulations
G99/1-4:2019
G98/1-4:2019
Island network detection df/dt (ROCOF) vector shift
Interface RS-485 (data exchange/parameter setting)
Continuous monitoring of the phase voltage and line-to-line voltage
Remote shutdown via ripple control signal receiver

The VMD460-NA is an external network and system protection (NS protection) the purpose of which is to disconnect the power generation system from the grid by coupling switches in the event of inadmissible threshold values. If voltage and frequency measurements on the power generation system are outside the thresholds required in the standards, the relays of the VMD460-NA will switch. The VMD460-NA is multifunctionally adjustable.

The currently measured values are continuously shown on the LC display. The measured values leading to the tripping of the relays are stored.

Questions? Contact us!

Features

Straightforward commissioning due to pre-set basic programs for national standards and regulations
G99/1-4:2019
G98/1-4:2019
Single-fault tolerance
Monitoring of the connected coupling switch (configurable: NC/NO/off)
Islanding detection df/dt (ROCOF)
Vector shift
Interface RS-485 (data exchange, parameter setting)
Test function for the determination of the disconnection time
Test button for the trigger circuit

The last 300 distribution network faults can be recalled with time stamp/real-time clock
Continuous monitoring of the phase and line-to-line voltage
Separate switching conditions after a threshold infringement
Language selection (German, English, Italian)
Backlit graphics LC display
Remote shutdown via ripple control signal receiver
Password protection for device setting
Sealable enclosure

Applications

Application examples

Central NS protection (VDE-AR-N 4105)
Protective disconnection (VDE-AR-N 4110, BDEW)
Interface Protection (IP) (Engineering Recommendations; EREC G99, G59, G83, G59)
Protezione di interfaccia (CEI 0-21)
Automatic disconnection device between a generating plant parallel to the network
and the public network
Universal for generating plants for safe network decouplingg

Approvals/certificates of conformity/manufacturer declarations

VDE-AR-N 4105:2018-11
VDE-AR-N 4105:2011-08
VDE-AR-N 4110:2023-09
VDE-AR-N 4110:2018-11
BDEW technical guideline 2008 incl. amendments until 01.2013
G99/1:2019
G59/2
G59/3
G98/1:2019
G83/2
CEI 0-21 (:2012-06, :V1:2012-12, :V2:2013-12, :2014-09, :V1:2014-12, :2016-07, V1:2017-07)
C10/11:2012-06
DIN V VDE V 0126-1-1(:2016-06, /A1:2012-02)