Talking about the Advantages of Frequency Control
1. VVVF features good
The realization of asynchronous motor frequency control, induction motor invented centuries people waiting for the "dream of the century." Through unremitting improvement, improvement and perfection of the frequency changer , its speed regulation work characteristic is not inferior, namely compares with the direct current velocity modulation system, certain performance also will surpass the direct current velocity modulation. Since the frequency itself is a digital quantity, very hard mechanical properties can be achieved without external feedback. At the same time also has high precision speed, wide range, smooth start, stable performance, easy maintenance, etc., and easy to realize the automatic control of the production process.
2. Frequency control system failure rate is low
Asynchronous motor drag system, without changing the original motor conditions, to achieve energy-saving frequency conversion technology transformation, that is, between the motor and power access matching inverter, and get the best speed control. Its low failure is due to the simple structure of the asynchronous motor, stable performance, reliable operation, and the rotor loop current does not need to be introduced from the outside, so the probability of failure is very low.
3. Frequency control can achieve soft start
Asynchronous motors with full voltage direct start, the starting current is 5-7 times the rated current, such a large starting current will drag devices or power grid impact. The use of frequency control start, the starting current is generally not more than 1.5 times the rated current, and start smooth and stable without impact, to achieve the true sense of induction motor soft start.
4. Frequency control will extend the service life of equipment
VVVF is used in fans and pump loads. It not only can realize the speed conditions according to the load operation function, but also has little vibration and mechanical noise during start-up. The inverter is used for speed regulation of general mechanical equipment. Under the conditions of starting, stopping, accelerating and decelerating, it will not produce vibration and shock, so it can prolong the service life of machinery and equipment.
5. The frequency converter is used for the smoothing of the torque when the conveyor speed regulation
The inverter is used to adjust the speed of the conveyor motor. When the load is applied and decelerated, the inverter also has a good soft-start effect and the torque is smooth. Especially when starting under heavy load, the output torque can be smoothly increased, which is an effect that ordinary deceleration starters can not achieve.
1) Engine: adopts the famous brand turbocharged version engine
2) Crawler Driving Gear: the designed motor with a speed reduction gearbox prolongs the service life
3) Hydraulic oil pump: It uses parallel gearbox (which is a patent) to separate oil pump monomer, supply adequate power and distribute reasonable. The hydraulic system adopts unique design, which is easy to maintain and can lower the maintenance cost.
4) Rotary head device: integrated casting gearbox , dual motor power, large torque, durable, small maintenance costs
5) Drill chassis: the professional excavator chassis provides durability and strong load capacity, the wide roller chain plate causes small damage to the concrete pavement
6) Lifting force: patent designed composite arm with small size yet long stroke, double cylinder lifting, strong lifting capacity
7) The lift arm is installed with a limiter to protect cylinder and ensure the safety of work
8) Each hydraulic tubing is covered with a protective shell to effectively extend the service life of pipeline.
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JIANGSU XI TEC ENVIRONMENTAL&DRILLING EQUIPMENT COMPANY CO.LTD , https://www.xitecdrilling.com