ZX-Family Gas-insulated medium voltage switchgear

Durable and reliable Minimum overall costs Safety first ZX offers maximum economy Sealed gas compartments The compact design of the panels reduces the space required and therefore the size of the station. Freedom from maintenance is achieved by constant conditions in the high voltage compartments in conjunction with the selection of suitable materials. s a rule, therefore, isolation of the switchgear to perform maintenance work is not required. The panels are designed for an expected service life of over 0 years. Thanks to the plug-in technology applied in the areas of the busbars, cables and secondary systems, extremely short installation times are possible. No gas work is required as a rule at site. The filling with SF ensures permanently constant ambient conditions. Nevertheless, components such as switching devices or bushings may have to be repaired or possibly replaced. Topping up in the event of a loss of insulating gas can be performed without interrupting operation, and possible shutdowns can therefore be planned. The SF is monitored with temperature compensation, by density sensors with a self-monitoring function. s a result of the closed circuit design, wire breakages and defective plug or terminal connections are signalled as faults. ZX0 elements at a glance Multifunctional protection and control unit Measuring sockets for capacitive voltage indicator system Three position disconnector Vacuum circuit-breaker Cable connector at outer cone Ring-type current transformer Isolatable voltage transformer feeder Pressure relief disk Busbars Plug-in voltage transformer busbar Circuit-breaker panel 0 ZX0. elements at a glance Removable low voltage compartment with protection and control unit Three position disconnector Local controls in front of mechanism bay Gas density sensor and filling valve Vacuum circuit-breaker Measuring sockets for capacitive voltage indicator system Cable connector at outer cone Ring-type current transformer Isolatable voltage transformer feeder Pressure relief disk Solid-insulated busbars Plug-in voltage transformer busbar Circuit-breaker panel 000 ZX ensures maximum operator safety ZX0. ZX. Compact system for distribution applications in block design. Installation against a wall or free-standing in the room. Both local manual operation and remote control are facilitated. Together with vacuum circuit-breakers, there are switch-disconnectors with and without fuses. Metal-enclosed single busbar system for transformer and distribution switchgear in individual panel design. Installation against a wall or free-standing in the room. ll systems have mechanical controls for local operation, but can also be remote controlled with optional motorized mechanisms for the three position disconnectors. Together with vacuum circuit-breakers, ZX0. also offers three position switch disconnector and fuse combinations. Metal partitioned single busbar system for transformer and distribution substations with raised cable terminations for ultra-simple cable installation from the rear. ll switching devices can be remote controlled and optionally mechanically interlocked. Main components of ZX. Plug-in voltage transformer feeder Isolating system for voltage transformer Gas density sensor and filling valve Multifunctional protection and control unit Vacuum circuit-breaker Three position disconnector Busbars Pressure relief disk Pressure relief duct Inner cone cable connector Cable socket Measuring sockets for capacitive voltage indicator system Test socket Current transformer or combined current and voltage sensor Plasma diverter Feeder 000 ZX0 ll live components are enclosed to prevent accidental contact. s the high voltage compartments are independent of external influences (degree of protection IP), the probability of a fault during operation is extremely low. s evidenced by arc fault testing, our switchgear systems are notable for maximum operator safety. further enhancement can be achieved by providing pressure relief to outside the switchgear room. Special Ratings 0. / 0/ / 0/ / 0/ 0/0 / 0 0 Rated current of busbars 0 0 0 Rated current of feeder with CB 0 0 Rated current of tee-off with circuit-breaker 0 0 Rated current of feeder 0 0 0 0 0 Rated current of feeder with load break switch 0 0 Rated current of tee-off with switch-disconnector and fuses k.. k.. for circuit-breaker k Rated short-time current s k Rated short-time current s k Rated short-time current s for circuit-breaker k Internal rc Classification according to VDE 0 part 00 DS ZX-Family GB.indd Wall installation: IC FL k s ; Free-standing installation IC FLR k s Internal rc Classification Wall installation: IC FL. k s ; Free-standing installation IC FLR. k s Internal rc Classification with plasma diverter IC FL. k s ; with plasma absorber and duct IC FLR. k s according to VDE 0 part 00 according to VDE 0 part 00.. 0:

Maximum availability Double busbar panel for 000 Easy, simple and fast The busbar technology permits simple and therefore safe assembly. In spite of the extremely low failure probability of the ZX switchgear systems, replacement of components in the gas compartments and therefore a rapid return to service after repairs is possible. In gas-insulated switchgear, earthing of switchgear sections is performed by a high quality vacuum circuit-breaker. The circuit-breaker can close onto a short-circuit significantly more frequently and reliably than a positively making earthing switch. ZX key elements Three position disconnector Multifunctional protection and control unit Gas density sensor and filling valve Vacuum circuit-breaker Cable socket Inner cone cable connector Plug-in voltage transformer feeder Pressure relief disk Current transformer or combined current and voltage sensor Pressure relief duct Measuring sockets for capacitive voltage indicator system Busbars Plug-in voltage transformer busbar ZX Metal partitioned single or double busbar system for all applications even with the highest parameters. Cables accessible from the rear. ll switching devices can be remote controlled and optionally mechanically interlocked. Both combined protection and control devices and pure protection devices are used. Special Ratings / 0/ 0/0 /00 ) Rated current of feeder 0 0 0 0 0 0 k. 0. 0 0 0 Rated short-time current s k 0 0 0 0 Internal rc Classification IC FLR 0 k s according to VDE 0 part 00 ) Single busbar systems up to 000 on request

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