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高壓直流輸電
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Method for placing into operation a series connected group of static power converters of a high voltage direct-current transmission installation 2021-08-29 830
Control of high-voltage D.C. transmission systems 2021-09-05 485
High-voltage DC transmission system and method 2021-09-07 806
Series tapping of an HVDC transmission line 2021-09-08 805
Selective voltage and current control for high voltage D.C. transmission systems 2021-09-11 88
Method for overvoltage protection of HVDC transmission line systems 2021-09-12 575
ELF communications system using HVDC transmission line as antenna 2021-09-13 254
Grounding of a double-pole high voltage-direct current-transmission system 2021-09-14 66
Method for controlling hvdc transmission system to avoid line frequency overvoltage upon load dumping 2021-09-15 205
High voltage dc transmission system 2021-09-16 288
Method of controlling high voltage dc transmission line and regulator 2021-09-03 307
Apparatus for branching and converting electric power on highhvoltage dc transmission line 2021-09-09 227
Method and regulating device for controlling high-voltage direct current transmission system 2021-09-01 155
Method of taking a pole of a high-voltage d-c transmission station out of service 2021-09-06 505
System for monitoring and measuring high voltage D.C. transmission line current 2021-09-10 756
Zero-current detector for high voltage DC transmission line 2021-08-31 699
Composite filter for suppressing harmonic frequencies on electric power transmission lines 2021-09-04 767
Protective arrangement for high voltage direct current power transmission 2021-09-17 949
Verfahren und Anordnung zur Regelung der Netzblindleistung bei einer Hochspannungs-Gleichstrom-übertragung 2021-08-30 650
Hochspannungs-Gleichstrom-übertragungsanlage 2021-09-02 16
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