1.上通风门、电缆室门和后门，转动部分由暗铰链改为明铰链，这使得门转动平稳，转动角度更大，同时也比以前要美观，整体效果更加协调。
1. The upper ventilation door, cable room door, and rear door have been changed from concealed hinges to exposed hinges in their rotating parts, which makes the door rotate smoothly, with a greater angle of rotation, and is also more aesthetically pleasing than before, resulting in a more coordinated overall effect.
2.改进前，一次转接件与塑料功能件直接相连。假如发生特殊故障，导致一次转件烧毁，这样会给现场的维修带来较大的困难，更换时间较长。而改进后，由于一次转件改为独立安装维修方便，减少了停电时间，经济效果显著。
Before the improvement, the primary adapter was directly connected to the plastic functional component. If a special malfunction occurs, resulting in the burning of a rotating part, it will bring greater difficulties to on-site maintenance and a longer replacement time. After the improvement, due to the convenience of independent installation and maintenance instead of one-time parts transfer, the power outage time was reduced, and the economic effect was significant.
3.MCC柜的一次电缆出线方便更加灵活。相比以前，除了保留原有的侧出和后出的方案，更增加了同时侧出和后出的混合方案，极大的方便了用户。
3. The primary cable outlet of the MCC cabinet is more convenient and flexible. Compared to before, in addition to retaining the original side out and rear out schemes, a hybrid scheme of simultaneous side out and rear out has been added, greatly facilitating users.
4.8E、16E和24E单元抽屉内的一次电联的规格可以根据回路的实际电流大小选择电缆，这有利于用户现场的维修和更改。
The specifications of the primary electrical connection in the drawers of 4.8E, 16E, and 24E units can be selected based on the actual current size of the circuit, which is beneficial for on-site maintenance and modification by users.
5.改进后，后出线方案的后门结构与以前相比，对中立柱进行了重新优化，从而增加了出线电缆的空间，便于用户维修。
5. After improvement, the rear door structure of the rear outlet scheme has been re optimized compared to before, increasing the space for outlet cables and facilitating user maintenance.
6.改进后，后出线方案的二次接插件由侧面位置改到后隔板位置。这样，不但减少了二次电缆到端子的距离，而且避免了因现场柜子并柜后无法维修的问题。（600mm宽后出线方案容易产生）。
After improvement, the secondary connector of the rear outlet scheme has been changed from the side position to the rear partition position. This not only reduces the distance from the secondary cable to the terminal, but also avoids the problem of being unable to repair after on-site cabinet merging. The 600mm wide rear outlet scheme is easy to generate.
7.可翻门式顶盖，安装方便，省力省时。
7. The foldable door top cover is easy to install, labor-saving, and time-saving.
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