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  • H02H9/00
    		•  Emergency protective circuit arrangements for limiting excess current or voltage without disconnection [2006.01] HB CC 5G013
  • H02H9/00@A
    		•  Essentially safe explosion-proof circuits HB CC 5G013
  • H02H9/00@B
    		•  .Details of essentially safe explosion-proof circuits HB CC 5G013
  • H02H9/00@Z
    		•  Others HB CC 5G013
  • H02H9/02
    		•  .responsive to excess current HB CC 5G013
  • H02H9/02@A
    		•  Limiting currents by resistance changes HB CC 5G013
  • H02H9/02@B
    		•  .Changing by temperatures HB CC 5G013
  • H02H9/02@C
    		•  .Changing by mechanical forces HB CC 5G013
  • H02H9/02@D
    		•  Limiting currents by inserting resistance with switches HB CC 5G013
  • H02H9/02@E
    		•  by controlling conductivities of control elements HB CC 5G013
  • H02H9/02@F
    		•  using saturating phenomenon of transformers HB CC 5G013
  • H02H9/02@G
    		•  using resonating phenomenon of L or C HB CC 5G013
  • H02H9/02@H
    		•  Current limiting elements (their values remaining constant per se) always inserted HB CC 5G013
  • H02H9/02@Z
    		•  Others HB CC 5G013
  • H02H9/04
    		•  .responsive to excess voltage (lightning arrestors H01C 7/12, H01C 8/04, H01G 9/18, H01T) HB CC 5G013
  • H02H9/04@A
    		•  using constant voltage or non-linear resistance elements HB CC 5G013
  • H02H9/04@B
    		•  using switching elements HB CC 5G013
  • H02H9/04@C
    		•  Combinations of L, C or R elements HB CC 5G013
  • H02H9/04@Z
    		•  Others HB CC 5G013
  • H02H9/06
    		•  ..using spark-gap arresters HB CC 5G013
  • H02H9/08
    		•  .Limitation or suppression of earth fault currents, e.g. Petersen coil [3] HB CC 5G013
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