Structure of high-voltage switch cabinet:
The switch cabinet should meet the relevant requirements of the "AC Metal Enclosed Switchgear" standard. It consists of two parts: the cabinet and the circuit breaker. The cabinet is composed of the shell It is composed of body, electrical components (including insulating parts), various mechanisms, secondary terminals and connections.
Electrical components
Current transformer is referred to as CT [such as: LZZBJ9-10. ]
Voltage transformer abbreviated as PT [such as: JDZJ-10]
Grounding switch [such as: JN15-12]
Lightning arrester (resistance-capacitance absorber) [For example: HY5WS single-phase type; TBP, JBP combination type]
Isolating switch [such as: GN19-12, GN30-12, GN25-12]
High voltage circuit breaker [such as : Oil-less type (S), vacuum type (Z), SF6 type (L)]
High-voltage contactor [such as: JCZ3-10D/400A type]
High-voltage fuse [Such as: RN2-12, DXN-Q type, DXN-T type]
Insulation parts [such as: wall bushings, contact boxes, insulators, insulating heat shrink (cold shrink) sheaths]
High voltage reactor [such as series type: CKSC and starter motor type: QKSG]
Load switch [such as: FN26-12(L), FN16-12(Z)]
High-voltage single-phase parallel capacitors [such as: BFF12-30-1], etc.
Relays, watt-hour meters, ammeters, voltmeters, power meters, power factor meters, frequency meters, fuses, air switches, Transfer switches, signal lights, resistors, buttons, microcomputer integrated protection devices, etc.