Product Description

Electrical Table fan,16inch AC Desk Fan unique Design and silent working Motor

We are Manufacturing to offer Competitive price of Stand fan, Table fan, Wall fan, Industrial fan, Tower fan,orbit fan,Box Fan,Recharegable fan,DC solar Fan,2 in 1 fans ,3 IN 1 fan and So on.

FAN FEATURES:

3 different wind speeds meet diverse requirements

Adjustable Height to 110cm-130cm & Wide Oscillation Angle

Oscillation control easily distributes more air

Heavy duty blades to powerfully circulate the cool air

Durable Material & Sturdy Base provides high stability

Simple Installation & Cleaning Process

Countless Uses for Diverse Places

 

Certifications

Installation Instructions

Why Choose Us?

1.20 years experience only focus on electrical fan field
2. More than 56 countries have been exported to.
3. OEM,ODM are warmly welcomed with professional service
4.100% QC inspection free before shipment
5.Strong Prodution capacity : One day 5 containers
 

SHIPMENT & PAYMENT:
Terms Of Payment: FOB/CNF/CFR is available, T/T 30% Advanced payment, the Balance before shipment or against B/L copy Or against /LC at sight
Delivery Time: 25-30 days after receiving advanced payment
Port of Loading: Xiaolan Port/HangZhou Port/HangZhou Port

Company Profile

REALSUN INTERNATIONAL LTD is a professioinal manufacture Stand fan, Table fan, Wall fan, Industrial fan, Tower fan,orbit fan,Box Fan,Recharegable fan,DC solar Fan,2 in 1 fans ,3 IN 1 fan and So on.Most of our product have the cerification of CE,ROHS,IEC,ERP etc .Our product are selling well in EU ,US,MID-EAST,AFRICA,SOUTH AMERICA With our own professional R&D team,we can design and develop fashional and nevel product to meeting with your tastes. We keep the principle customer first,technical innovation,achive success with best quality and sincere service.

 

Our Service:
Quality Service: Our first priority is to provide the great quality products and professional service to our customers with their satisfaction.

Certified Product: Our products we are compliant to and valid for importing into the target markets, that are certified by third party accrecited labs, like SGS, INTERTEK, BV, CE and etc.

Unbeatable Price: We continuously strive to find ways to reduce our production costs in order to provide cost-saving for our customers.

Quickly Response: We are always trying to reply/answer our customer’s enquiry and questions within 24 hours after receipt of customer’s request or email.

FAQ
Q : Are you a factory or trading company?
A : We are the factory directly, which only produce different kind of the electrical fans like: Stand fan, Industrial fan, table fan, Wall fan,Clip fan, Box fan, Powerful fan, Plastic fan,Ceiling fan, Exhaust fan and etc.

Q : How do I inspect my goods?
A : You can inspect by visiting our factory by person,or ask third party to inspect,or by picture inspection.

Q : How much does it cost to ship to my country?
A : The freight will be given by the freight company based on your Gross Weight and CBM.

Q : Is there any tracking Number for my item?
A : Yes, we ship every order with their Tracking Number, and you can view the shipment locations on the corresponding website.

Q : How to place my order?
A : We are THE ASSURANCE SUPPLIER.After you confirm PI,we will email you a payment link,you can do the payment in your email.If you still don’t understand how to place order or you have other questions,kindly feel free to contact us.

Q: How Can I get sample?
A : Please provide us your effective address and contact number.We will arrange the sample in 5-7 days.

If you have any questions,Kindly feel free to contact us.Your inquiries will be paid highly attention.

Contact Us:
1. Our working time: 8: 00am~18: 00pm
2. Please feel free to leave a message, all the inquiries will be replied within 24hours.

 

You are welcome to visit our factory and OEM is Welcome! We sincerely welcome all new and old customers come to discuss the purchase, we will be happy to provide you with high quality and flexible service at competitive prices! We can use various transportation ways and customized packing, logo, shape and color. Thank you! 🙂

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Remote Control: Without Remote Control
Power Source: Electric
Material: Plastic & Metal
Installation: Table
Certification: ROHS, CE
Size: 12inch/16inch/18inch
Samples:
US$ 20/Piece
1 Piece(Min.Order)

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Customization:
Available

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induction motor

Can you explain the concept of motor efficiency and how it relates to AC motors?

Motor efficiency is a measure of how effectively an electric motor converts electrical power into mechanical power. It represents the ratio of the motor’s useful output power (mechanical power) to the input power (electrical power) it consumes. Higher efficiency indicates that the motor converts a larger percentage of the electrical energy into useful mechanical work, while minimizing energy losses in the form of heat and other inefficiencies.

In the case of AC motors, efficiency is particularly important due to their wide usage in various applications, ranging from residential appliances to industrial machinery. AC motors can be both induction motors, which are the most common type, and synchronous motors, which operate at a constant speed synchronized with the frequency of the power supply.

The efficiency of an AC motor is influenced by several factors:

  1. Motor Design: The design of the motor, including its core materials, winding configuration, and rotor construction, affects its efficiency. Motors that are designed with low-resistance windings, high-quality magnetic materials, and optimized rotor designs tend to have higher efficiency.
  2. Motor Size: The physical size of the motor can also impact its efficiency. Larger motors generally have higher efficiency because they can dissipate heat more effectively, reducing losses. However, it’s important to select a motor size that matches the application requirements to avoid operating the motor at low efficiency due to underloading.
  3. Operating Conditions: The operating conditions, such as load demand, speed, and temperature, can influence motor efficiency. Motors are typically designed for maximum efficiency at or near their rated load. Operating the motor beyond its rated load or at very light loads can reduce efficiency. Additionally, high ambient temperatures can cause increased losses and reduced efficiency.
  4. Magnetic Losses: AC motors experience losses due to magnetic effects, such as hysteresis and eddy current losses in the core materials. These losses result in heat generation and reduce overall efficiency. Motor designs that minimize magnetic losses through the use of high-quality magnetic materials and optimized core designs can improve efficiency.
  5. Mechanical Friction and Windage Losses: Friction and windage losses in the motor’s bearings, shaft, and rotating parts also contribute to energy losses and reduced efficiency. Proper lubrication, bearing selection, and reducing unnecessary mechanical resistance can help minimize these losses.

Efficiency is an important consideration when selecting an AC motor, as it directly impacts energy consumption and operating costs. Motors with higher efficiency consume less electrical power, resulting in reduced energy bills and a smaller environmental footprint. Additionally, higher efficiency often translates to less heat generation, which can enhance the motor’s reliability and lifespan.

Regulatory bodies and standards organizations, such as the International Electrotechnical Commission (IEC) and the National Electrical Manufacturers Association (NEMA), provide efficiency classes and standards for AC motors, such as IE efficiency classes and NEMA premium efficiency standards. These standards help consumers compare the efficiency levels of different motors and make informed choices to optimize energy efficiency.

In summary, motor efficiency is a measure of how effectively an AC motor converts electrical power into mechanical power. By selecting motors with higher efficiency, users can reduce energy consumption, operating costs, and environmental impact while ensuring reliable and sustainable motor performance.

induction motor

What are the common signs of AC motor failure, and how can they be addressed?

AC motor failure can lead to disruptions in various industrial and commercial applications. Recognizing the common signs of motor failure is crucial for timely intervention and preventing further damage. Here are some typical signs of AC motor failure and potential ways to address them:

  • Excessive Heat: Excessive heat is a common indicator of motor failure. If a motor feels excessively hot to the touch or emits a burning smell, it could signify issues such as overloaded windings, poor ventilation, or bearing problems. To address this, first, ensure that the motor is properly sized for the application. Check for obstructions around the motor that may be impeding airflow and causing overheating. Clean or replace dirty or clogged ventilation systems. If the issue persists, consult a qualified technician to inspect the motor windings and bearings and make any necessary repairs or replacements.
  • Abnormal Noise or Vibration: Unusual noises or vibrations coming from an AC motor can indicate various problems. Excessive noise may be caused by loose or damaged components, misaligned shafts, or worn bearings. Excessive vibration can result from imbalanced rotors, misalignment, or worn-out motor parts. Addressing these issues involves inspecting and adjusting motor components, ensuring proper alignment, and replacing damaged or worn-out parts. Regular maintenance, including lubrication of bearings, can help prevent excessive noise and vibration and extend the motor’s lifespan.
  • Intermittent Operation: Intermittent motor operation, where the motor starts and stops unexpectedly or fails to start consistently, can be a sign of motor failure. This can be caused by issues such as faulty wiring connections, damaged or worn motor brushes, or problems with the motor’s control circuitry. Check for loose or damaged wiring connections and make any necessary repairs. Inspect and replace worn or damaged motor brushes. If the motor still exhibits intermittent operation, it may require professional troubleshooting and repair by a qualified technician.
  • Overheating or Tripping of Circuit Breakers: If an AC motor consistently causes circuit breakers to trip or if it repeatedly overheats, it indicates a problem that needs attention. Possible causes include high starting currents, excessive loads, or insulation breakdown. Verify that the motor is not overloaded and that the load is within the motor’s rated capacity. Check the motor’s insulation resistance to ensure it is within acceptable limits. If these measures do not resolve the issue, consult a professional to assess the motor and its electrical connections for any faults or insulation breakdown that may require repair or replacement.
  • Decreased Performance or Efficiency: A decline in motor performance or efficiency can be an indication of impending failure. This may manifest as reduced speed, decreased torque, increased energy consumption, or inadequate power output. Factors contributing to decreased performance can include worn bearings, damaged windings, or deteriorated insulation. Regular maintenance, including lubrication and cleaning, can help prevent these issues. If performance continues to decline, consult a qualified technician to inspect the motor and perform any necessary repairs or replacements.
  • Inoperative Motor: If an AC motor fails to operate entirely, there may be an issue with the power supply, control circuitry, or internal motor components. Check the power supply and connections for any faults or interruptions. Inspect control circuitry, such as motor starters or contactors, for any damage or malfunction. If no external faults are found, it may be necessary to dismantle the motor and inspect internal components, such as windings or brushes, for any faults or failures that require repair or replacement.

It’s important to note that motor failure causes can vary depending on factors such as motor type, operating conditions, and maintenance practices. Regular motor maintenance, including inspections, lubrication, and cleaning, is essential for early detection of potential failure signs and for addressing issues promptly. When in doubt, it is advisable to consult a qualified electrician, motor technician, or manufacturer’s guidelines for appropriate troubleshooting and repair procedures specific to the motor model and application.

induction motor

How does the speed control mechanism work in AC motors?

The speed control mechanism in AC motors varies depending on the type of motor. Here, we will discuss the speed control methods used in two common types of AC motors: induction motors and synchronous motors.

Speed Control in Induction Motors:

Induction motors are typically designed to operate at a constant speed determined by the frequency of the AC power supply and the number of motor poles. However, there are several methods for controlling the speed of induction motors:

  1. Varying the Frequency: By varying the frequency of the AC power supply, the speed of an induction motor can be adjusted. This method is known as variable frequency drive (VFD) control. VFDs convert the incoming AC power supply into a variable frequency and voltage output, allowing precise control of motor speed. This method is commonly used in industrial applications where speed control is crucial, such as conveyors, pumps, and fans.
  2. Changing the Number of Stator Poles: The speed of an induction motor is inversely proportional to the number of stator poles. By changing the connections of the stator windings or using a motor with a different pole configuration, the speed can be adjusted. However, this method is less commonly used and is typically employed in specialized applications.
  3. Adding External Resistance: In some cases, external resistance can be added to the rotor circuit of an induction motor to control its speed. This method, known as rotor resistance control, involves inserting resistors in series with the rotor windings. By varying the resistance, the rotor current and torque can be adjusted, resulting in speed control. However, this method is less efficient and is mainly used in specific applications where precise control is not required.

Speed Control in Synchronous Motors:

Synchronous motors offer more precise speed control compared to induction motors due to their inherent synchronous operation. The following methods are commonly used for speed control in synchronous motors:

  1. Adjusting the AC Power Frequency: Similar to induction motors, changing the frequency of the AC power supply can control the speed of synchronous motors. By adjusting the power frequency, the synchronous speed of the motor can be altered. This method is often used in applications where precise speed control is required, such as industrial machinery and processes.
  2. Using a Variable Frequency Drive: Variable frequency drives (VFDs) can also be used to control the speed of synchronous motors. By converting the incoming AC power supply into a variable frequency and voltage output, VFDs can adjust the motor speed with high accuracy and efficiency.
  3. DC Field Control: In some synchronous motors, the rotor field is supplied by a direct current (DC) source, allowing for precise control over the motor’s speed. By adjusting the DC field current, the magnetic field strength and speed of the motor can be controlled. This method is commonly used in applications that require fine-tuned speed control, such as industrial processes and high-performance machinery.

These methods provide different ways to control the speed of AC motors, allowing for flexibility and adaptability in various applications. The choice of speed control mechanism depends on factors such as the motor type, desired speed range, accuracy requirements, efficiency considerations, and cost constraints.

China Best Sales Electrical Table Fan, 16inch AC Desk Fan Unique Design and Silent Working Motor   vacuum pump	China Best Sales Electrical Table Fan, 16inch AC Desk Fan Unique Design and Silent Working Motor   vacuum pump
editor by CX 2024-05-07