Japanese patent abstract

Because this article is a particularly complicated article specially written when applying for a patent, the principles mentioned in this application are introduced as follows for your reference.

This is a device to manage the power supply change of elevator system. It consists of transformer, tap changer and control device.

The transformer has a primary side and a secondary side, and the input signal of the elevator system is connected to the secondary side of the transformer.

The transformer is equipped with multiple tap changers, and each converter should be selected from the multiple taps and connected to one of them.

According to the detected output power of the power supply, the tap changer is operated by the control system, and the power within the allowable range (frequency band) of the elevator system is provided to the secondary side of the transformer.

After understanding the above principles, the translation of the whole article will be easy to understand.

An elevator power supply change management device includes

A transformer including a primary side and a secondary side, and an input signal of the elevator system is connected to the secondary side;

Complex tap changers, each connected to a tap in the transformer at the same time;

Operating the tap changer according to the detected power output to provide the frequency band allowed by the elevator system to the secondary side of the transformer;