User:LMischler/Img-2018-H

Fig. H3 – Symbol for a disconnector (or isolator) (DB422390)

Fig. H4 – Symbol for a load-break switch (DB422391)

Fig. H6 – Symbol for a bistable remote control switch (impulse relay) (DB422392_EN)

Fig. H7 – Symbol for a monostable remote control switch (contactor, relay) (DB422393_EN)

Fig. H8 – Symbol for fuses (DB422394)

Fig. H9 – Zones of fusing and non-fusing for gG and gM fuses (DB422395_EN)

Fig. H11 – Standardized zones of fusing for type aM fuses (all current ratings) (DB422396_EN)

Fig. H12 – Current limitation by a fuse (DB422397_EN)

Fig. H13 – Limited peak current versus prospective rms values of the AC component of fault current for LV fuses (DB422398_EN)

Fig. H14 – Symbol for an automatic tripping switch-fuse (DB422399)

Fig. H15 – Symbol for a non-automatic fuse-switch (DB422400)

Fig. H16 – Symbol for a non-automatic switch-fuse

• 

  (DB422401)

• 

  (DB422402)

Fig. H17 – Symbol for a fuse disconnector + discontactor (DB422403)

Fig. H18 – Symbol for a fuse-switch disconnector + discontactor (DB422404)

(Non_tested_CB) (circuit-breaker-symbol)

Fig. H21 – Main parts of a circuit breaker (DB422405_EN)

Fig. H22 – Domestic-type circuit breaker providing overcurrent protection and circuit isolation features (PB116761)

Fig. H23 – Domestic-type circuit breaker with incorparated protection against electric shocks (PB116762)

Fig. H24 – “Acti 9” system of LV modular switchgear components (DB422406_EN)

Fig. H25 – Example of a Compact NSX industrial type of circuit breaker capable of numerous auxiliary functions (PB105112-z)

Fig. H26 – Example of air circuit breakers. Masterpact provides many control features in its “Micrologic” tripping unit

• 

  (PB116047_20)

• 

  (PB116184-50)

Fig. H27 – Example of a Compact NSX630N circuit breaker with a Micrologic rated 400A adjusted to 0.9 to give Ir = 360 A (DB422407_EN)

Fig. H29 – Tripping curve of a thermal-magnetic circuit breaker (DB422408)

Fig. H30 – Tripping curve of a circuit breaker with advanced electronic trip unit (DB422409)

Fig. H32 – Category B circuit breaker (DB422411)

Fig. H33 – Category A circuit breaker (DB422410)

Fig. H35 – Prospective and actual currents (DB422412_EN)

Fig. H36 – Performance curves of a typical LV current-limiting circuit breaker

• 

  (DB422413_EN)

• 

  (DB422414_EN)

Fig. H37 – Ambient temperature (DB422415_EN)

Fig. H42 – Double earth fault situation (DB422437_EN)

Fig. H43 – Example of a transformer in a consumer’s substation (DB422421_EN)

Fig. H44 – Transformers in parallel (DB422422_EN)

Fig. H45 – Transformers in parallel (DB422423_EN)

Fig. H48 – Principle of selectivity (DB431076)

Fig. H49 – Total and partial selectivity (DB422425_EN)

Fig. H50 – Total selectivity between CBs A and B (DB422426_EN)

Fig. H51 – Partial selectivity between CBs A and B (DB422427_EN)

Fig. H52 – Current based selectivity, Time based selectivity, Combination of both

• 

  (DB422428)

• 

  (DB422429)

• 

  (DB422430_EN)

Fig. H53 – Energy based selectivity (DB431077_EN)

Fig. H54 – Practical example of selectivity at several levels with Schneider Electric circuit breakers (with electronic trip units) (DB431078_EN)

Fig. H55 – Logic discrimination. (DB422434_EN)

Fig. H56 – Example (DB422435_EN)

Fig. H57 – Curves of MV fuses and LV circuit breaker (DB422436_EN)

Fig. H58 – Example of ultra rapid power circuit breaker: Masterpact UR (Schneider Electric) (PB101594_SE-z)

Fig. H59 – Diagram of the network (DB422438_EN)

Fig. H60 – Diagram of the network with Masterpact UR added as tie breaker (DB422439_EN)

Fig. H61 – Resulting short-circuit current (DB422440_EN)