Common use of Frequency controlled Clause in Contracts

Frequency controlled. regulation of DC installations, Emergency power The maximum impact of regulation of DC installations during frequency drops can be seen in Figure 2. As illustrated by the Figure, all DC installations between the synchronous system and other AC systems contribute frequency controlled emergency power. It should be pointed out, however, that if a DC installation is performing a full import to a area with a low frequency, it will not be able to contribute emergency power. Maximal frekvensstyrd nödeffekt 52,00 51,50 51,00 50,50 50,00 49,50 49,00 48,50 48,00 -2000 -1500 -1000 -500 500 1000 1500 2000 Nödeffekt import (MW) KS1+KS2 BALTIC KONTEK SWEPOL Skagerak Viborg Frekvens (Hz) Figure 2 The Vyborg DC link is disconnected at a frequency in Finland of > 52 Hz for 0.5 sec.

Frequency controlled. regulation of DC installations, Emergency power The maximum impact of regulation of DC installations during frequency drops can be seen in Figure 2. As illustrated by the Figure, all DC installations between the synchronous system and other AC systems contribute frequency controlled emergency power. It should be pointed out, however, that if a DC installation is performing a full import to a area with a low frequency, it will not be able to contribute emergency power. Maximal frekvensstyrd nödeffekt 52,00 51,50 51,00 50,50 50,00 49,50 49,00 KS1+KS2 BALTIC KONTEK SWEPOL Skagerak Viborg 48,50 48,00 -2000 -1500 -1000 -500 500 1000 1500 2000 Nödeffekt import (MW) KS1+KS2 BALTIC KONTEK SWEPOL Skagerak Viborg Frekvens (Hz) Figure 2 The Vyborg DC link is disconnected at a frequency in Finland of > 52 Hz for 0.5 sec.

Frequency controlled. regulation of DC installations, Emergency power The maximum impact of regulation of DC installations during frequency drops can be seen in Figure 2. As illustrated by the Figure, all DC installations between the synchronous system and other AC systems contribute frequency controlled emergency power. It should be pointed out, however, that if a DC installation is performing a full import to a area with a low frequency, it will not be able to contribute to emergency power. Maximal frekvensstyrd nödeffekt 52,00 51,50 51,00 50,50 50,00 49,50 49,00 48,50 48,00 -2000 -1500 -1000 -500 500 1000 1500 2000 Nödeffekt import (MW) KS1+KS2 BALTIC KONTEK SWEPOL Skagerak Viborg Frekvens (Hz) Figure 2 The Vyborg DC link is disconnected at a frequency in Finland of > 52 Hz for 0.5 sec.)

Frequency controlled. regulation of DC installations, Emergency power The maximum impact of regulation of DC installations during frequency drops can be seen in Figure 2. As illustrated by the Figure, all DC installations between the synchronous system and other AC systems contribute frequency controlled emergency power. It should be pointed out, however, that if a DC installation is performing a full import to a area with a low frequency, it will not be able to contribute to emergency power. Maximal frekvensstyrd nödeffekt 52,00 51,50 51,00 50,50 50,00 49,50 49,00 KS1+KS2 BALTIC KONTEK SWEPOL Skagerak Viborg 48,50 48,00 -2000 -1500 -1000 -500 500 1000 1500 2000 Nödeffekt import (MW) KS1+KS2 BALTIC KONTEK SWEPOL Skagerak Viborg Frekvens (Hz) Figure 2 The Vyborg DC link is disconnected at a frequency in Finland of > 52 Hz for 0.5 sec.)