3 Phase Dry-type Harmonic Filter Line Inductor Price For Frequency Inverter

a. HSLEC has specialized in manufacturing line inductors and output inductors for more than 23 years.

b. Our products & services are satisfied by most of our old customers, Siemens, Fuji, ABB, Schneider, LG, GE, etc. , and also we are direct suppliers of most famous steel mills, like Wuhan Iron and Steel corp., Maanshan Iron Steel, Chongqing Iron and Steel Group, etc.  

Overview

Do I need a reactor, inductor or a choke? What is the difference? The answer is that they all perform a similar function; their main objective is to reduce the effects of generated harmonics, limit high frequency voltage transients, add reactance to neutralize the effects of capacitive loads or to limit current or voltage.

Line Inductors

Line inductors have been used for many years to solve voltage and harmonics problems in variable speed drive installations. The desired characteristic of a reactor is inductance, “the opposition to a rapid change in current flow”. VFDs draw current from the power line in sharp pulses causing harmonic current to flow. The current is drawn in sharp pulses because the input diodes only conduct current at the peak of the voltage waveform in order to keep the capacitors fully charged. The use of line reactors in series with incoming line power helped to solve typical problems on the input (line side) of variable frequency drives (VFD) and SCR controllers.

• Drive nuisance tripping
• Voltage notch reduction (for SCR controllers)
• Increase capacitor life
• Harmonic attenuation
• Improve drive’s true power factor
• Low cost substitutes for 1:1 isolation transformers

At the same time, inductors could also be used on the output of a VFD, many more application problems could be solved.

• Motor temperature rise
• Motor winding degradation
• Motor noise
• Motor efficiency
• VFD short circuit protection 

1. Pre sale service

     a.  make technical solution

     b.  send quotation, technical data sheet and drawing

     c.  make manufacturing plan, testing plan and shipping plan

2. In sale service

    a. supervise the manufacturing schedule totally in accordance with the plan

    b. send photos to customer during every manufacturing process(hold point)

    c. inform the customer one week before testinng.

    d. book hotel and ticket for customer if they will come do FAT.

3. After sale service

    a. installation and commissioning

    b. training  the workers

    b. quick response within 12 hours at any time

HSLEC was established in 1992, and emerged as an independent manufacturer of high quality power and distribution transformers and reactors/inductors/chokes. We have the unique ability not only to produce standard units but also to design and build transformers to customers' precise requirements, including replacement units.

HSLEC produces transformers from 5kVA through 7,500kVA in voltage classes through 34.5kV. To assure compliance with applicable standards as well as with any special requirements of our customers, we test all transformers several times during the manufacturing process. Our quality control program covers all aspects of quality assurance. 

Our people, from management and engineering through manufacturing personnel, have a long tradition of experience in designing and manufacturing quality products. Together, our engineers and manufacturers craft the most reliable products in the industry.

Our long-term partners: ABB, Siemens, GE, Schneider, Fuji, Parker, etc