VPR-A1, Rơle bảo vệ điện áp VPR-A1, VPR-A1 Orion Italia, Đại lý Orion Italia tại Việt Nam

Rơle bảo vệ điện áp VPR-A1.

The voltage protection relay VPR-A has been designed to measure the line or phase RMS voltage, frequency and unbalance under normal conditions or under disturbances.

This information is internally processed by the microprocessor, to take the voltage protection actions defined under ANSI or IEC standards. The different functions provided by the VPR-A may be classified into the groups mentioned below.

• Protection of generators, motors and transformer against adverse system voltage conditions
• Ground fault detection 59N
• Supervision of automatic transfer switching schemes