DRIESCI Air-Insulated Medium-Voltage Compact Switchgears for Substations • Rated voltage 12 kV to 24 kV • Rated current 630 A

788 DRIESCHER - Compact Switchgears for Substations in compliance with EN 62271-200 Operating conditions, Technical standards, Technical Data Description of the compact switchgears Withdrawable plates, Auxiliary equipment, Weights Production program CHE b DRIESMoosRurg hrige Unsere langjä g und unsere Erfahrun m Gebiet Erfolge auf de ßt ektrotechnik lä der El n epte und Idee uns Konz unseren e entwickeln, di mübergreiKunden proble en bieten. fende Lösung kV Luftisolierte 12 kV bis 24 nlagen von stschalta Kompakt-La solierte Driescher lufti altmpakt-Lastsch Ko n sind als anlage äußerst Komplettlösung...

788 General The new air-insulated DRIESCHER mediumvoltage compact switchgears are ideal for application in secondary substations without control aisles. They meet the user's specific requirements to the full and ensure a satisfactory power distribution. These new air-insulated medium-voltage compact switchgears have been designed to meet demands for flexibility, maximum levels in quality and safety as well as maximum operating convenience in the network control. • Compact dimensions • No need for gaseous or solid insulators Low-Voltage Distribution 403 • Environmental compatibility, also in the...

The air-insulated compact switchgears are installed in closed electrical operating areas to which only trained personnel and appropriately instructed persons have access. The equipment can be used at altitudes of up to 1000 m above sea level. For installations above an altitude of 1000 m the rated insulating level of the switchgear must be corrected accordingly. The switch panels are designed for use under normal operating conditions in compliance with the standard EN 62271-1. The design of the air-insulated switchgears corresponds to the specifications of the EN 62271-200. The resistance to...

788 Description of the Compact Switchgear Design The air-insulated medium-voltage compact switchgears comprise at least one outgoing feeder cable and one transformer feeder. The cable panels are equipped with an in-line switch-disconnector H 27 EK. The compact switchgears frame is made of a screwed, hot-galvanized composite structure. The entire compact switchgear is metal-encapsulated to guarantee optimal protection to persons and plant. The compact switchgears are fitted at the front with single-wing sheet steel doors which have inserted compound glass windows for visual inspection of the switch-disconnectors....

788 DRIESCHER - Compact Switchgears 12 kV Earthing switch Current transformer Voltage transformer • Rated voltage 12 kV • Rated (operating) current 630 A • Rated isolation level 75 kV Fig. 1: 12 kV Compact switchgear in front and side view Switch-disconnector H 27 EK Insulating protective barriers Insulating protective barriers Earthing switch Earthing switch Fig. 2: 12 kV Compact switchgear - open

788 DRIESCHER - Compact Switchgears 12 kV Earthing switch Current transformer Voltage transformer • Rated voltage 12 kV • Rated (operating) current 630 A • Rated isolation level 75 kV Fig. 3: 12 kV Compact switchgear in front and side view Switch-disconnector H 27 EK Insulating protective barriers Insulating protective barriers Earthing switch HV-HBC fuse Earthing switch Fig. 4: 12 kV Compact switchgear - open

788 DRIESCHER - Compact Switchgears 24 kV Earthing switch Current transformer Voltage transformer • Rated voltage 24 kV • Rated (operating) current 630 A • Rated isolation level 125 kV Fig. 5: 24 kV Compact switchgear in front and side view Voltage transformer Fuse switch-disconnector H 27 SuT Insulating protective barriers Current transformer HV-HBC fuse Spherical terminal stud Earthing switch Fig. 6: 24 kV Compact switchgear - open

788 DRIESCHER - Compact Switchgears 24 kV Earthing switch Current transformer Voltage transformer • Rated voltage 24 kV • Rated (operating) current 630 A • Rated isolation level 125 kV Fig. 7: 24 kV Compact switchgear in front and side view Fuse switch-disconnector H 27 SuT Switch-disconnector H 27 EK Insulating protective barriers Earthing switch Surge voltage protector Insulating protective barriers Switch-disconnector H 27 EK HV-HBC fuse Earthing switch Fig. 8: 24 kV Compact switchgear open

788 DRIESCHER - Compact Switchgears 24 kV • Rated voltage 24 kV • Rated (operating) current 630 A • Rated isolation level 125 kV Earthing switch Current transformer Voltage transformer Fig. 9: 24 kV Compact switchgear in front and side view Fuse switch-disconnector H 27 SEA Earthing switch Switch-disconnector H 27 EK Insulating protective barriers Insulating protective barriers Voltage transformer Earthing switch Earthing switch Voltage surge protector Current transformer Fig. 10: 24 kV Compact switchgear - o

Available Auxiliary Equipment Designation • Cable panel with surge voltage protector • Installation of test sockets for capactive voltage tapping • Attachment of a fuse box • Cable panel with switch-disconnector 630 A • Transformer panel with switch-disconnector 630 A • Additional locking features with profile cylinder and lockable operating mechanisms • Base • Installation of various short-circuit display systems • Panel illumination • Delivery is possible with voltage display and transformer system DEHNcap/AWS for measuring phase-to-earth and phase-to-phase voltages for control and protection...

Our range of products includes: Medium-voltage systems • Single-bus and duplicate-bus switchgear • Non-withdrawable, withdrawable, and truck-type units • Compact switchgear assemblies • Custom-made models • Industrial systems Medium-voltage switchgear • Indoor switches, disconnectors, and earthing switches (single and triple pole) • Indoor circuit breakers (vacuum) • Outdoor switches (low oil content and vacuum) • High-voltage high-breaking-capacity fuses Low-voltage systems • Open-framework design • Enclosed break devices (up to 6.300 A) • Cable and fixed-station distribution cabinets Low-voltage...