Circuit arrangements for AC mains or AC distribution networks

Child Classifications

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• H02J 3/001 Arrangements for handling faults or abnormalities, e.g. emergencies or contingencies since 2026 +1 CPC IPC+CPC Available in IPC and CPC
• H02J 3/002 CPC only CPC only
• H02J 3/003 CPC only CPC only
• H02J 3/004 CPC only CPC only
• H02J 3/007 Arrangements for selectively connecting one or more loads to one or more power sources or power lines since 2026 +1 CPC IPC+CPC Available in IPC and CPC
• H02J 3/008 Circuit arrangements for power supply or distribution technologies responsive to energy trading since 2026 IPC+CPC Available in IPC and CPC
• H02J 3/01 Arrangements for reducing harmonics or ripples since 1980 IPC+CPC Available in IPC and CPC
• H02J 3/02 using a single network for simultaneous distribution of AC power at different frequencies IPC+CPC Available in IPC and CPC
• H02J 3/04 Arrangements for connecting networks of the same frequency but supplied from different sources IPC+CPC Available in IPC and CPC
• H02J 3/10 Current-controlled supply systems, e.g. constant-current supply systems IPC+CPC Available in IPC and CPC
• H02J 3/11 Arrangements for adjusting frequency in AC networks, e.g. by control of active power since 2026 IPC+CPC Available in IPC and CPC
• H02J 3/12 Arrangements for adjusting voltage in AC networks by changing a characteristic of the network load IPC+CPC Available in IPC and CPC
• H02J 3/17 Demand-responsive operation of AC power transmission or distribution networks since 2026 IPC+CPC Available in IPC and CPC
• H02J 3/18 Arrangements for adjusting, eliminating or compensating reactive power in networks IPC+CPC Available in IPC and CPC
• H02J 3/26 Arrangements for eliminating or reducing asymmetry in polyphase networks IPC+CPC Available in IPC and CPC
• H02J 3/28 Arrangements for balancing of the load in networks by storage of energy IPC+CPC Available in IPC and CPC
• H02J 3/34 Arrangements for transfer of electric power between networks of substantially different frequency IPC+CPC Available in IPC and CPC
• H02J 3/36 Arrangements for transfer of electric power between AC networks via high-voltage DC [HVDC] links; Arrangements for transfer of electric power between generators and networks via HVDC links +1 CPC IPC+CPC Available in IPC and CPC
• H02J 3/38 Arrangements for feeding a single network from two or more generators or sources in parallel; Arrangements for feeding already energised networks from additional generators or sources in parallel +1 CPC IPC+CPC Available in IPC and CPC