the high-voltage winding is made of enamelled copper wire, and the low-voltage winding is made of copper foil. The highvoltage winding is filled with glass fiber felt and poured by imported epoxy resin without iller in vacuum state . After curing.it forms a solid whole with high mechanical strength, less partial discharge and high reliability.
the core is wound with amorphous alloy strip, and the structure of three-phase five-column core or three-phase three-column coil core is adopted as required.The section of the core is rectangular.
the high voltage coil adopts segmented cylindrical coil, thin insulation sealed vacuum pouring, large capacity winding withaxialair passage, high voltage resistance level of the coil, low local discharge, dust prevention and cooling effect.
KYN61-40.5(Z2)型铠装移开式交流金属封闭开关柜(以下简称开关柜)系三相交流50Hz,额定电压40.5kV的户内成套配装置。
DTU series distribution automation terminal device is a protection and monitoring terminal product developed for multi line acquisition sites such as ring main unit and small switching station in distribution network.
When this cabinet has reverse current, it cuts off the rectifier from the bus 600V and uses it for repair and maintenance. The cabinet is equipped with a fast circuit breaker in the main current circuit. Equipped with reverse current protection and interlocked with vacuum switch 6/10 kVA.
The purpose of the feeder cabinet is to supply power to the contact network on the cable line. The main circuit is equipped with a DC fast circuit breaker, a bypass bus isolation switch and a ground isolation switch. The repair work is carried out with a separate ground isolation switch.
The spare switchgear ensures the power supply of the line feeder when a feeder cabinet is repaired or maintained. This cabinet is equipped with a fast circuit breaker and two grounding isolation switches.
The function of the negative switch cabinet is that the output feeder of the catenary is connected to the negative bus through the isolating switch. In a cabinet, multiple negative bus cables can be placed according to user requirements.
GZDW series Cd Ni battery for DC panel, floating charging motor, equipped with automatic detection and alarm device, has the characteristics of long service life, convenient maintenance, stable voltage, ultra-low internal resistance output, bearing large current impact, strong adaptability and high reliability. It is a DC operation power supply device, which can be widely used in 500kV and below substation It can also be used in metallurgy, mining, petroleum, radio and television, computer room, subway, high-rise building and other departments as DC control, signal power supply, power-off protection and circuit breaker operating mechanism switching power supply.
GZDW series Cd Ni battery for DC panel, floating charging motor, equipped with automatic detection and alarm device, has the characteristics of long service life, convenient maintenance, stable voltage, ultra-low internal resistance output, bearing large current impact, strong adaptability and high reliability. It is a DC operation power supply device, which can be widely used in 500kV and below substation It can also be used in metallurgy, mining, petroleum, radio and television, computer room, subway, high-rise building and other departments as DC control, signal power supply, power-off protection and circuit breaker operating mechanism switching power supply.
GZDW series Cd Ni battery for DC panel, floating charging motor, equipped with automatic detection and alarm device, has the characteristics of long service life, convenient maintenance, stable voltage, ultra-low internal resistance output, bearing large current impact, strong adaptability and high reliability. It is a DC operation power supply device, which can be widely used in 500kV and below substation It can also be used in metallurgy, mining, petroleum, radio and television, computer room, subway, high-rise building and other departments as DC control, signal power supply, power-off protection and circuit breaker operating mechanism switching power supply.
MCS2.1 Background control cabinet of trolley bus is mainly used to convert the AC voltage of rectifier transformer into 1500V or 750V DC for subway or light rail vehicle traction, as the critical link of AC and DC conversion. In order to reduce the influence of harmonic currents on the grid, the rectifier currently adopt single cabinet 12-pulse rectification (composed of two three-phase 6-pulse full-wave rectifier bridges in parallel), and the traction substation generally consists of two rectifier units in parallel operation constituting equivalent 24-pulse rectification.
