详细介绍：

The NPG 800 relays protect the synchronous generators  connected to three-phased network, whatever the type of achine : steam, hydraulic and gas turbines, diesel and gas  otors etc.

ANSI FUNCTIONS FOR NPG 800:
21 / 24 / 27 / 32RP / 32P / 32Q / 40 / 46 / 49 /
50 / 50V / 51/ 51V / 59 / 59N / 64 / 81
ADDITIONAL FUNCTIONS :
86 / 74TC / 50BF / power cut – reloading, remote control (with a

communication option)