CQOX Electric

01/03/2026

28/02/2026

# More Attributes
- S: Three-phase
- 20: Performance level code
- M: Fully hermetically sealed structure
- □: Rated capacity range (30–2500 kVA)
- 10: Rated high voltage (kV)
- NX2: Class Ⅱ energy efficiency mark

# Product Highlights
# # # Secondary energy efficiency, energy saving & consumption reduction
No-load loss reduced by 20% vs. national standard; load loss reduced by 15%. Annual power saving exceeds 1800 kWh per unit. Complies with national Class Ⅱ energy efficiency standard.

# # # NX2 fully sealed structure
Adopts NX2 corrugated oil tank, fully sealed design to prevent oil leakage. Operation and maintenance costs reduced by 65%.

# # # Strong short-circuit resistance & high stability
Short-circuit withstand capability reaches 2.5 times the national standard. Impedance voltage: 4%–6%. Suitable for complex power grid conditions.

# # # Low noise & eco-friendly operation
Optimized core and winding structure. Operating noise ≤ 52 dB at 1 m. Meets noise requirements for industrial and civil environments.

# # # Wide protection & high adaptability
Protection class IP67. Operating temperature: -25 ℃ ~ +40 ℃. Altitude ≤ 1000 m. Supports indoor and outdoor deployment.

26/02/2026

of building type adaptation and application scenario document
# # 1. High rise buildings
-* * Core advantage * *: Oil free design, can be directly installed in the floor distribution room, saving vertical space and reducing cable costs.
-Application value: Adapting to the compact spatial layout of modern high-rise buildings, improving the integration and economy of electrical systems.
# # 2. Commercial complexes
-* * Core advantages * *: Low noise, high safety, ensuring a comfortable and safe shopping environment, and avoiding business interruptions caused by transformer failures.
-Application value: Meeting the dual requirements of environmental comfort and operational continuity in commercial places.
# # 3. Medical buildings
-* * Core advantages * *: Silent operation that does not interfere with the diagnosis and treatment environment, with fire and explosion resistance, and moisture resistance that can adapt to the special environment of hospitals.
-* * Application value * *: Ensuring a professional environment for medical diagnosis and treatment, while enhancing doctor-patient safety and equipment stability.
# # 4. Data Center
-* * Core advantages * *: Efficient and energy-saving, reducing PUE value, low partial discharge, ensuring stable operation of data equipment.
-* * Application Value * *: Helps data centers achieve green and efficient operations, and enhances the reliability of IT infrastructure.
# # 5. Subway/Tunnel
-* * Core advantages * *: Moisture proof, dirt resistant, anti-interference, adaptable to humid and dusty environments, providing safe and reliable power supply for rail transit.
-Application value: Meet the stringent environmental and reliability requirements of underground transportation systems.
# # 6. School/Library
-* * Core advantage * *: Low noise creates a quiet learning environment, and safety design ensures the safety of teachers and students.
-Application value: Adapting to the high standard requirements of educational and cultural venues for acoustic environment and public safety.

26/02/2026

Let me introduce you to the iron core of a transformer core sheet

10/02/2026

Delivery is just the beginning, no matter how late it is, timely power on is an explanation of customer trust, it is a mutually enjoyable thing, I like this feeling. ----Delivery project of mall distribution room🫡🫡🫡

10/02/2026

Today, we will continue to study the high-voltage chamber of the box type substation. As the core hub for the safe operation of the box type substation, its quality directly determines the service life of the equipment. We strictly control every production process, taking into account safety and convenient operation and maintenance, to ensure long-term stable operation.
We welcome customized products and promise to deliver them to you with the fastest speed and highest quality.

10/02/2026

Hello everyone, today we will introduce the KYN28 metal armored enclosed switchgear, a safety guard in the power distribution system. The shell adopts a fully metal armored structure, with complete five protection and four remote functions. Rated voltage of 12 kV, maximum current of 1250 A, fearless of complex power grid environment. Modular design with compact space and powerful load switching and protection capabilities can be used in substations, factories, and high-rise buildings. Choosing the Ouxu armored switchgear means choosing safety and reliability

10/02/2026

The transformer you bought is half as expensive as your peers because you didn't pay attention to these two points.
At first glance at the coil material, the lifespan of pure copper and copper-clad aluminum can be twice as long.
The second requirement is to check the protection level of the transformer, and outdoor use must reach IP54 or above.
Remember these two points, never step into a pit.
We are the source factory, using transparent materials, supporting inspection and payment, and refusing to pass off inferior products as good.
If you need it, please feel free to visit and inspect the factory. If you want to buy a transformer, come to us

09/02/2026

battery

05/02/2026

In 30 seconds, we will take you up close to get to know the industrial and commercial energy storage integrated cabinet

04/02/2026

04/02/2026