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Motor control resistors of any type for any application, including wound-rotor AC motors with slip ring starters, DC motor starters, crane control systems, torque-increasing resistors, field discharge resistors can be designed and built. Electric motors of all types AC single-phase or three-phase and DC have two common characteristics during starting and run-up. Without some form of control, the motor will take very high currents, and the switching may itself cause voltage spikes. The high currents risk overloading the supply...
Date：2019-06-24 [More+]
Load test resistors one of the most important applications is wind-form installation. Utilizing the wind is one of the cleanest, most sustainable ways to generate electricity. Wind power produces no toxic emissions and will not bring negativie impact on global temperature. Meanwhile, wind power is one of the most abundant and increasingly cost effective energy resources makes it a viable alternative to burning coal or oil. Pre-insertion resistors, neutral earthing resistors, dynamic braking resistors, Microhm load test resis...
Date：2019-06-12 [More+]
Ammeter resistors are put back in the spotlight as the rise of renewable energy. The increase in the number of solar, wind, wave, and tidal power sources has pushed the need for a highly accurate method of measuring current. The solution is required for several reasons: to ensure accurate billing, have a more granular level of control, and, perhaps most importantly, to ensure the efficiency of the distributed power system. There are a few ways to measure current. However, the one most suited for renewable applications looks t...
Date：2019-05-22 [More+]
Power resistors, able to withstand and dissipate large amounts of power, have a wide range of applications within the marine sector. Choosing the correct components when building or refurbishing a ship is essential to ensure productivity and efficiency remain elevated. Resistors are required for many purposes including dynamic braking, ship stabilization and improving power quality using harmonic filters to protect delicate machinery on board. With so many applications for resistors, there are some important considerations to...
Date：2019-05-21 [More+]
A shunt resistor and magnetic current sensor are used to measure the voltage drop flowing through. It is said the intelligence of the battery does not lie in the cell but in the complex battery system. In todays automotive applications, above two current sensing technologies is generally used. The Shunt resistor is more accurate and less costly than the Hall Effect current-sensing solution, while the tapped holes assist in the PCB placement process, providing additional vibration immunity and the location of the fixed voltage...
Date：2019-04-23 [More+]
After all the process of chip resistance manufacture, packing will be carried out and placed on the carrying belt to form a strip. In the packaging, there will be some phenomena such as fragmentation, mixing, setting-up, inversion, placing, empty material, jumping material, material missing angle, carrying belt contamination, carrying belt damage, and so on. A bad resistance flowing to the client terminal and attached to the circuit board will result in the bad quality of the final product, and a security risk. Because of a b...
Date：2019-04-11 [More+]
Metal foil resistor, widely used in the current market, adopted high-precision materials has advantages both in precision and low TCR. With the increasing level of intelligence of many electronic products, metal foil resistors also ushered in a wide market space. The trend is increased by a certain amount each year, especially in metal foil high power resistors. A double-layer metal foil planar high-power resistor, in the course of use, is provided with three layers of ceramic pieces. The upper part of the resistance piece is...
Date：2019-04-04 [More+]
Current sensing resistor, including shunt resistor, is very popular for their high power, low resistance and low inductance. It is conducive to control the noise for high frequency and high speed application. And because of the inverted structure and long edge, the power dissipation ability is improved. The rated power of the current sensing resistor indicates the maximum energy that the resistor can consume without damage or degradation. Most manufacturers say their free air flow is rated at 70 C. Above this temperature, the...
Date：2019-04-03 [More+]
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