Nr Electric Co., Ltd

Nr Engineering Co., Ltd

Nr Electric Power Electronics Co., Ltd.

Nr Electic Power Electronics Co., Ltd.

Chihan Chen

Xiang Zhang

Taixun Fang

Lei Liu

Fan Yang

Zhao Li

Haiying Li

Dongming Cao

Haibin Liu

Fengfeng Ding

Lele Li

Guangtai Zhang

Biao Gao

Ge Song

Li Zheng

A housing structure of a planar resistor is provided, wherein electrode extraction ends of the planar resistor are on the same side of the resistor. A housing structure body is made of an insulating material covering the surface of the resistor. An insulating structure having a groove opening facing toward or away from the resistor is provided around each electrode extraction end of the resistor. The insulating structure is configured to be a multi-tooth or multi-groove insulating structure.

Housing structure of planar resistor

A shell structure for a thyristor trigger unit comprises an integrally-formed shell body with a holder and a cuboid structure, and a side plate. The cuboid structure is a cuboid with an opening in its front where an open face is formed at the front opening of the cuboid. The cuboid further includes a rear panel, a left panel, a right panel, an upper panel, and a lower panel. The holder includes a square retaining plate and two triangular stiffener plates. The square retaining plate is formed by a bottom panel extending towards a side of the left panel in a long side direction of the cuboid while the triangular stiffener plates are fixedly connected between the square retaining plate and the left panel. The side plate is mated with and detachably mounted on the open face to produce a sealed 6-face cuboid structure by sealing off said open face.

Shell structure for thyristor trigger unit

A thyristor assembly radiator for a DC converter valve. A water discharging port of an Nradiator is communicated with a water discharging port of an (N&#x2212;2)radiator. A water feeding port of the Nradiator is communicated with a water feeding port of an (N+2)radiator. Or, a water feeding port of the Nradiator is communicated with a water feeding port of the (N&#x2212;2)radiator, and a water discharging port of the Nradiator is communicated with a water discharging port of the (N+2)radiator. A water discharging port of an Mradiator is communicated with a water discharging port of an (M&#x2212;2)radiator, and a water feeding port of the Mradiator is communicated with a water feeding port of an (M+2)radiator, or a water feeding port of an Mradiator is communicated with a water feeding port of the (M&#x2212;2)radiator, and a water discharging port of the Mradiator is communicated with a water discharging port of an (M+2)radiator. Water feeding ports of the last two radiators are communicated. According to the radiator, the number of joints of a cooling system is reduced, the risk of leakage is lowered, the operation reliability of a converter valve is improved, the maintenance difficulty is lowered, and the maintenance time is shortened.

Thyristor assembly radiator for DC converter valve

A converter valve includes a top shielding cover, a bottom shielding cover, at least two vertically stacked valve layers, and a maintenance platform. The top shielding cover is disposed at an upper portion of an uppermost valve layer. The bottom shielding cover is disposed at a lower portion of a lowermost valve layer. Each of the valve layers comprises two valve modules disposed side-by-side in a horizontal direction. The two valve modules are electrically connected via a busbar and mechanically connected via securing connectors. A lower valve layer is connected to an upper valve layer in a suspended manner. A body of the maintenance platform is located between horizontal planes on which two vertically adjacent valve layers are located, or between horizontal planes on which the lowermost valve layer and the bottom shielding cover are located.

Converter valve

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Jiangsu, China

Chihan Chen