The high-power wound cathode produced by Shell Electric is made of chromium wire or copper wire wound on ceramic tubes, and can be divided into fixed and adjustable types. According to the different usage environments of customers, there are two types of surface protection: painted and glazed. The characteristics of high-power wound anode include high power, high heat dissipation, and high stability. It has low noise during operation, is stable and reliable, and can withstand high temperatures. It can still operate normally at an ambient temperature of 170 ° C. But it has a large volume and relatively low resistance, mostly below 100K0. Additionally, due to structural reasons, its distributed capacitance and inductance coefficients are relatively large and cannot be used in high-frequency circuits. This type of resistor is usually used for voltage reduction or load reduction in high-power circuits.


Characteristics: The painted wire is wound with a high flame retardant and high-temperature resistant inorganic paint layer, effectively protecting the resistance wire from oxidation. It has a long service life and is easy to dissipate heat. It has the characteristics of high power, strong overload resistance, reliable performance, and convenient use.

Manufacturing: High power wound resistors are composed of resistance wires wound around an insulating framework. Resistance wires generally use alloys such as nickel chromium and constantan with a certain resistivity.

Applications: elevators, sub arc welding machines, lifting machinery, construction machinery rolling mills, wire drawing machines, centrifuges, load tests.

Usage: Widely used in various electrical equipment and electronic instruments for DC or AC voltage reduction and shunt loads.

Power range: 10W-20000W Resistance range: 0.11Q-100KQ

High power wire wound resistors include DDR fixed wire wound resistors, DQR corrugated wire wound resistors, DSR adjustable wire wound resistors, and DDBY glazed wire wound resistors; It can be customized according to customer requirements, and one resistor can achieve multiple resistance values, making it non-inductive and adjustable.

Applicable industries: industrial control automation fields such as welding machines, elevators, generators, sound systems, frequency converters, etc.