Applications and features

Unit BN1-400 of the BASIC LINE is an universal mains decoupling device to monitor the phase-to neutral volt-ages and contains the protective functions required of VDEW and most other utilities for the mains parallel operation of power stations:

• over- and undervoltage protection 

• over- and underfrequency protection 

• fast decoupling of the generator in case of mains failure 

• Phase sequence supervision

When compared to conventional devices an exceptional price/performance ratio is achieved by in tegration of the three protective functions in one device.

When compared to the conventional protection equipment all relays of the BASIC LINE reflect the superiority of digital protection techniques with the following features:

• High measuring accuracy by digital data processing 

• Fault indication via LEDs 

• Very fine graded wide setting ranges 

• RMS measurement 

• Extremely short response time 

• Compact design by SMD-technology