4.3.5. DELIVERY OF ACTIVE POWER TO THE TRANSMISSION GRID 4.3.5.1. In the situation of voltage and frequency deviations in the transmission grid in
stationary status, generation unit must be able to generate active power P that meets the
values set in table 4.2. if connected to the 110 kV and 220 kV transmission grid, or the table
4.3. if connected to the 400 kV transmission grid (for times set in paragraph 4.3.8.):
Table 4.2
U f
47.5 – 48.5 Hz
48.5 – 49.5 Hz
49.5 – 51.5 Hz
0,9U
nom
– 1,15U
nom
P
0,95P
nom
P
0,975P
nom
P = P
nom
0,85U
nom
- 0,9U
nom
P
0,875P
nom
P
0,875P
nom
P
0,875P
nom
Table 4.3
U f
47.5 – 48.5 Hz
48.5 – 49.5 Hz
49.5 – 51.5 Hz
0,95U
nom
- 1,1U
nom
P
0,95P
nom
P
0,975P
nom
P = P
nom
0,9U
nom
- 0,95U
nom
P
0,875P
nom
P
0,875P
nom
P
0,875P
nom
where:
U– operating voltage at point of connection;
f – operating frequency in the transmission grid;
Pnom – nominal active power of the generator;
Unom – nominal voltage of the transmission grid where the facility is connected;
40
Mentioned reduction of the delivered active power is not related to the effects of primary and
secondary control.