CFZ-5Q8 Transformer Cooling and Blowing Device Main Transformer Cooling Fan

CFZ-5Q8It is a widely used productLow noise axial flow transformer cooling and blowing deviceFollowing the JB/T 9642 standard, specifically designed for side blowing/bottom blowing cooling of radiators in large and medium-sized power transformers.

Model meaning

• CFZTransformer specific blowing device (C-blowing, F-fan, Z-device);

• 5: Impeller diameter approximately500mm；

• QFront blowing type (airflow blows from the motor side towards the impeller and radiator);

• 88-pole motor, low speed and low noise; The suffixes TH/TA represent wet tropical/dry tropical types respectively.

Core technical parameters

1. Power:0.25kWThree phase asynchronous outdoor dedicated motor;

2. Rated voltage/frequency: 380V/50Hz (customizable export voltage);

3. Speed: about 720r/min;

4. Airflow: 5600~7400 m ³/h;

5. Total pressure: about 100 Pa;

6. Noise: 55-60 dB (A), 5-10 dB (A) lower than ordinary BF series;

7. Protection level:IP55Rainproof and dustproof; Insulation level F;

8. Environmental temperature: -30 ℃ to+50 ℃; Built in 110 ℃ thermistor overheat protection;

9. Bearing: Imported low-noise bearing, designed for a lifespan of 10 years.

Structure and Characteristics

1. Low noise designWing shaped aluminum alloy die-casting impeller, dynamic balance G2.5 level; Streamlined bracket reduces vortex wind noise; 8 extremely low-speed motors paired with low-noise bearings;

2. Direct connection maintenance freeThe impeller is directly connected to the motor, without vulnerable parts such as belts, resulting in high transmission efficiency and low maintenance costs;

3. Flexible installationSupports two mainstream installation methods: horizontal side blowing and vertical bottom blowing, and is compatible with various layouts of transformer radiators;

4. Outdoor DurableFully enclosed IP55 motor, with galvanized/spray treated casing, can withstand long-term exposure to sunlight, rain, and oil mist outdoors in substations.

Application scenarios

(Side blowing/bottom blowing universal)

Side blowing typeWeld/fix the installation bracket (diagonal arm support) on the side of the transformer radiator, with a bracket levelness of ≤ 0.2/1000

• Bottom blowing typeBuild a concrete foundation or steel frame at the bottom of the radiator, embed bolts, and ensure a foundation levelness of ≤ 0.2/1000

• All brackets/foundations need to be anti-corrosion (galvanized/sprayed), and torque wrenches should be used to tighten bolts (standard torque: 45 N · m for M12 and 80 N · m for M16)

CFZ-5Q8 Transformer Cooling and Blowing Device Main Transformer Cooling FanPartial installation diagram