Manual 37143A
MFR 15 - Protection Relay & Control
Page 102/119
© Woodward
Examples
V
G12
= 103, exponent = 2
103 × 10
2
[V] = 1,030 [V] =
10.3 kV
I
G1
= 80, exponent = -1
80 × 10
-1
[A] = 8.0 [A] =
8.0 A
P
GN
= 123, exponent = 4
123 × 10
4
[W] = 1,230,000 [W] =
1.23 MW
P
GN
= 803, exponent = 2
803 × 10
2
[W] = 80,300 [W] =
80.3 kW
f
GN
= 5230
5230 [Hz × 100] = 52.30 [Hz] =
52.3 Hz
cos phi = 87
87 [Cos phi × 100] = 0.87 [Cos phi] =
i0.87
Bit Change at Tripping of a Watchdog Function
If one of the watchdog functions (protective alarms) trips, the corresponding bits (for example bit 15/14 = over-
frequency limit 2) will change from not tripped (= 0/1) to tripped (= 1/0).