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Chongqing Yuma Mechanical & Electrical Co., Ltd.—Get Ready for the Autumn 2025 Canton Fair!

Chongqing Yuma Mechanical & Electrical Co., Ltd., a leading enterprise in Chongqing's machinery and electrical industry, will showcase its innovative products and cutting-edge technologies, offering global buyers a spectacular showcase of "Made in Chongqing" ingenuity.

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2025

Where are generators commonly used?

From ensuring the continuity of industrial production to providing emergency safety in commercial spaces; from enhancing the quality of outdoor living to supporting survival in extreme environments, generator applications have already permeated every corner of societal operations. With ongoing technological advancements, generators of the future will evolve toward greater efficiency—such as those powered by hydrogen or biofuels—and increased intelligence, featuring remote monitoring and automatic start-and-stop capabilities, continuously delivering a dependable source of electricity to support humanity.

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2025

Yuma Mechatronics warmly welcomes the Mid-Autumn Festival.

On this special Mid-Autumn Festival, Yuma Mechatronics carries forward its culture through innovation, unites hearts with warmth, and embodies responsibility through action. As the radiant couplet above the factory gate beautifully captures: "The Yushui River flows endlessly, forging exquisite products; horses arrive swiftly, ushering in a bright future." This is not only the company’s pledge to strive relentlessly but also a heartfelt wish for every Yuma employee—to journey together toward excellence, always embracing togetherness and advancing hand-in-hand with our shared dreams.

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2025

What should I do if water gets into the engine?

Engine water ingress isn’t as serious as you might think—proper and timely handling is key.

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2025

Chongqing Yuma Mechatronics tells you—why the Moto Show is held in Chongqing

The Motorcycle Expo is being held in Chongqing, primarily due to the city's robust industrial foundation, its distinctive urban culture and geographical advantages, as well as supportive policies and the growing need for industrial transformation.

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2025

Why does a generator experience loss of excitation?

The traditional criteria for loss-of-excitation protection mainly include four key elements: 1. Low-voltage criterion for the generator rotor, which encompasses both constant excitation voltage and variable excitation voltage criteria. 2. Stator impedance criterion at the generator terminal, covering the characteristics of the asynchronous boundary impedance circle and the static stability boundary impedance circle. 3. Two-phase simultaneous low-voltage criterion, comprising the terminal low-voltage criterion and the high-voltage side low-voltage criterion of the main transformer. 4. Reactive-power-inversion criterion, which identifies loss-of-excitation faults by detecting reverse reactive power along with stator overcurrent conditions. The primary differences among various loss-of-excitation protection schemes lie in their distinct protection trip conditions, time delays, or the specific combinations of criteria used.

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2025

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Thank you for visiting the official website of Chongqing Yuma Mechanical & Electrical Co., Ltd. If you have any cooperation intention or suggestion, please contact us through the following methods, we will reply as soon as possible, thank you!

Address: Dashipan Villiage, Xiema Town, Beibei District, Chongqing, China.

Tel: +86-13399800966 +86-15223398361

Email: 463227583@qq.com emma@cqyuma.com

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