Thermal Solutions for the Power Equipment Industry | Fengheng Technology
Fengheng Technology provides professional heat dissipation solutions for the power equipment industry. Its products are widely used in high and low voltage switchgear, distribution cabinets, prefabricated substations, dry-type transformers, ring main units, medium-voltage switchgear and other equipment, meeting the stringent requirements of power equipment for high reliability, moisture and condensation prevention and long service life.
I. Four Core Pain Points in Power Equipment Heat Dissipation
Pain Point 1: High temperatures inside the cabinet shorten the lifespan of the equipment.
Phenomenon:Excessive internal temperature in switch cabinets and distribution cabinets accelerates the aging of components such as circuit breakers and relays.
root cause:Hot air inside the cabinet cannot be effectively expelled, causing heat to accumulate.
Industry data:For every 10°C increase in temperature, the lifespan of electrical equipment decreases by approximately 501 TP3T.
Pain Point 2: High requirements for waterproofing and moisture-proofing of outdoor distribution boxes
Phenomenon:Outdoor distribution boxes and box-type substation fans malfunction after being exposed to water or moisture, leading to condensation and short circuits inside the cabinet.
root cause:It uses a regular fan instead of an IP-rated fan and has no anti-condensation design.
Industry Standards:Outdoor electrical equipment typically requires IP54, IP55 or higher protection ratings.
Pain Point 3: The requirement for high reliability during 24/7 continuous operation
Phenomenon:Electrical equipment operates continuously year-round, and insufficient fan life leads to heat dissipation failure.
root cause:Inexpensive oil-bearing fans have a lifespan of only 10,000 to 20,000 hours, far below the design lifespan of electrical equipment.
Industry data:Electrical equipment is designed for a lifespan of 20-30 years, and fans must be maintenance-free for 5-10 years.
Pain Point 4: Safety Insulation Requirements in High-Voltage Environments
Phenomenon:The fan inside the high-voltage switchgear has insufficient insulation, posing a potential safety hazard of leakage.
root cause:The fan was not reinforced with insulation.
Industry Standards:Fans inside high-voltage equipment need to have enhanced insulation and withstand voltage ≥2.5kV.
II. Comparison Table of Mainstream Power Equipment Fan Solutions
| Equipment type | Brand/Model | Fan position | Original factory specifications | Frequently Asked Questions | Fengheng Upgrade Recommendation | Reasons for upgrading | <td高低压开关柜 <tdABB、施耐德、正泰 <td柜顶通风/二次室散热 <td交流220V 120x120x38mm / 150x150x50mm <td长时间运行风扇噪音增大
|---|
III. Quick Reference Table for Heat Dissipation Solutions for Power Equipment
| Equipment type | Heat dissipation requirements | Recommended Model | Core parameters | <td开关柜/配电柜 <td柜体通风防凝露
|---|
IV. Key Points of Heat Dissipation Design for Power Equipment
1. Cabinet ventilation design
- The air inlet and outlet need to have sufficient area to form effective convection.
- The air inlet and outlet positions should be staggered to avoid airflow short-circuiting.
- A bottom-in, top-out air duct design is recommended.
2. Moisture-proof and condensation-proof design
- Outdoor equipment should have at least IP55 protection.
- Dehumidification with heater, fan-assisted circulation
- The cabinet must be well-sealed to prevent moisture from entering.
3. Insulation and Safety Requirements
- The insulation of the fan inside the high-voltage equipment needs to be strengthened.
- The fan power cord must have a protective sleeve.
- The installation location should avoid exposed live parts.
V. Frequently Asked Questions (FAQ)
Q1: How long can the fan in a switch cabinet typically last?
A: Original factory AC oil-impregnated bearing fans typically last 3-5 years. Fengheng AC dual ball bearing fans can last 8-10 years.
Q2: What should I do if water gets into the fan of an outdoor distribution box?
A: We selected an IP55 protection-rated fan. The Fengheng IP55 series is rainproof and dustproof, making it suitable for outdoor installation.
Q3: What specifications of fan are used in a prefabricated substation?
A: The prefabricated substation has a large space, so large-size fans (20060, 25489) need to be selected to ensure sufficient ventilation.
Q4: Are there insulation requirements for the fan inside the high-voltage switchgear?
A: Yes. The fan inside the high-voltage switchgear needs enhanced insulation design, with a withstand voltage of ≥2.5kV to ensure safety.
Q5: Do you support sample testing?
A: Free sample testing is available. We can provide original fan specifications and help you find the right upgrade solution.
VI. Contact us to obtain samples
Telephone: +86 13751170802
Official website: www.szfengheng.com
We welcome inquiries and cooperation from power equipment manufacturers, complete equipment suppliers, and power engineering companies.