Tyskland VDE-AR-N 4110 (mellemspænding)

Dette afsnit beskriver parameterkonfigurationen for ABB CM-UFD.M31 og CM-UFD.M31M-relæer for at overholde VDE-AR-N 4110-standarden i Tyskland.

Denne standard regulerer nettilslutningskrav for systemer, der er tilsluttet mellemspændingsnetværket, og definerer præcise tærskler for spænding, frekvens og fejldetektion for at sikre systemstabilitet og sikkerhed inden for den offentlige netinfrastruktur.

Tyskland VDE-AR-N 4110-indstillinger for ABB CM-UFD.M31(M)
Menu	Undermenu		Konfigurationsmulighed
Monitoring functions	Overvoltage >UAV	Monitoring	disabled
Monitoring functions	Overvoltage >UAV	Threshold value	0.005 xU_n
Monitoring functions	Overvoltage >UAV	Hysteresis	0.1 %
Monitoring functions	Overvoltage >U1	Monitoring	enabled
Monitoring functions	Overvoltage >U1	Threshold value	1.25 x U_n
Monitoring functions	Overvoltage >U1	Hysteresis	1 %
Monitoring functions	Overvoltage >U1	Tripping delay	0.1 s
Monitoring functions	Overvoltage >U2	Monitoring	disabled
Monitoring functions	Overvoltage >U2	Threshold value	0.005 x U_n
Monitoring functions	Overvoltage >U2	Hysteresis	0.1 %
Monitoring functions	Overvoltage >U2	Tripping delay	0.01 s
Monitoring functions	Undervoltage <U1	Monitoring	enabled
Monitoring functions	Undervoltage <U1	Threshold value	0.8 x U_n
Monitoring functions	Undervoltage <U1	Hysteresis	1 %
Monitoring functions	Undervoltage <U1	Tripping delay	2.4 s
Monitoring functions	Undervoltage <U2	Monitoring	enabled
Monitoring functions	Undervoltage <U2	Threshold value	0.3 x U_n
Monitoring functions	Undervoltage <U2	Hysteresis	1 %
Monitoring functions	Undervoltage <U2	Tripping delay	0.8 s
Monitoring functions	Overfrequency >F1	Monitoring	enabled
Monitoring functions	Overfrequency >F1	Threshold value	51.5 Hz
Monitoring functions	Overfrequency >F1	Hysteresis	0.1 Hz
Monitoring functions	Overfrequency >F1	Tripping delay	5 s
Monitoring functions	Overfrequency >F2	Monitoring	enabled
Monitoring functions	Overfrequency >F2	Threshold value	52.5 Hz
Monitoring functions	Overfrequency >F2	Hysteresis	0.1 Hz
Monitoring functions	Overfrequency >F2	Tripping delay	0.1 s
Monitoring functions	Underfrequency <F1	Monitoring	enabled
Monitoring functions	Underfrequency <F1	Threshold value	47.5 Hz
Monitoring functions	Underfrequency <F1	Hysteresis	0.1 Hz
Monitoring functions	Underfrequency <F1	Tripping delay	0.1 s
Monitoring functions	Underfrequency <F2	Monitoring	disabled
Monitoring functions	Underfrequency <F2	Threshold value	0.01 Hz
Monitoring functions	Underfrequency <F2	Hysteresis	0.01 Hz
Monitoring functions	Underfrequency <F2	Tripping delay	0.01 s
Monitoring functions	ROCOF Forkortelse for "Rate of Change of Frequency". I netovervågningsrelæer henviser det til, hvor hurtigt den elektriske frekvens ændrer sig over tid. Det anvendes til at registrere ustabile forhold i elnettet – især under hændelser som lastfrakobling eller frakobling af generatorer – og kan udløse beskyttelsesforanstaltninger, hvis frekvensen ændrer sig for hurtigt.	Monitoring	disabled
Monitoring functions	ROCOF	Threshold value	0.005 Hz/s
Monitoring functions	ROCOF	Number of cycles	1
Monitoring functions	ROCOF	Tripping delay	0.01 s
Monitoring functions	ROCOF	Error time	0.01 s
Monitoring functions	Vector Shift VS	Monitoring	disabled
Monitoring functions	Vector Shift VS	Threshold value	0.1*
Monitoring functions	Vector Shift VS	Error time	0.01 s
Switch-on conditions	Switch-on delay	Switch-on delay	600 s
Switch-on conditions	Switch-on delay	Short interruption	enabled
Switch-on conditions	Voltage window	Monitoring	enabled
Switch-on conditions	Voltage window	Minimum	49.9 Hz
Switch-on conditions	Voltage window	Maximum	50.1 Hz
Switch-on conditions	Frequency window	Monitoring	enabled
Switch-on conditions	Frequency window	Minimum	49.8
Switch-on conditions	Frequency window	Maximum	50.2