500W Non-inductive Tube Copper Water Cooled Wirewound Resistors
Structure
1.ZENITHSUN is the first professional manufacture producing the water cooled resistor,many types are available,ceramic tube series, brass copper tube series and aluminum box series.The water cooled resistor box or cabinet are available ( according to the power rating).
2.The resistor applied high quality special resistor material, the resistor cavity is from by the special frame which provides the room making the purity industrial water flow through it,the water taking away the working heat.
3.The connector for in and out of water,for non-standard technical size requirements and custom special installation,please contact us to discuss the details.
4.For non-standard technical requirements and custom special applications,please contact us to discuss the details.
Features
1.ZENITHSUN water cooled resistor owning great electrical characteristics,solid structure,safety,easy installation,low temperature,high power, great insulation,stability and durable, ect.
2.As the ordinary tap water as cooling carrier, eliminating the traditional way of deionized water high cost.
3.For non-standard technical requirements and custom special applications, please contact us to discuss the details.
Specificaiton
| Performance Charactertics | |
| Test | Conditions of Test | Testing Results |
| Resistance Tolerance | Testing Voltage ≤3V,Ambient Temperature 25℃ | F---G---J--K |
| Temperature Coefficients | R0:Room Temperature(T0)Resistance Value
R1:Room Temperature T0+100℃(T1)Resistance Value | ±100～±250PPM/℃ |
| Rated Load | 40℃,rated voltage,1H | △R≤±(3％+0.1Ω) |
| Short Time Overload | 5 times rated power for 10s;10 times rated power for 5s; 25 times rated power for 1s | △R≤±(2％+0.1Ω) |
| Dielectric Withstand Voltage | 2 times Rated Power Voltage +1kv AC 60s (with grounding), leakage current 2.5mA ;
2 times Rated Power Voltage +2kv AC 60s (with grounding), leakage current 2.5mA ; | △R≤±(0.1％+0.05Ω) |
| Insulation Resistance | 1000V DC | 50M-1000MΩ1Min |
| Terminal Tensile Strength | wire diameter ≤1.5 with 20N,wire diameter ≥1.5 with 40N,terminal tension 20N
copper end /stainless steel end,40N | No off |
| Vibration resistance | 1.5mm,10-55-10Hz,each 2hours | No damage,No off |
| Load Life | at rated voltage,90 min "On",30 min "Off" ,total 500hours | △R≤±(3％+0.1Ω) |
| Thermal Shock | At 30℃,30min,-55℃,15min | △R≤±(0.5％+0.1Ω) |
| Humidity Resistance | Temp.:40±2℃ ,Humidity: 90％-95％.240hours | △R≤±(3％+0.1Ω) |
| Low Temperature Resistance Testing | store at -65℃±3℃ for 2H | △R≤±(1%+0.1Ω) |
| High Temperature Resistance Testing | store at 70 ℃± 2 ℃ for 16h, connect the rated voltage DC circuit for 1s | △R≤±(1%+0.1Ω) |
| Non-flammability | 10 times rated power, power on for 5s | without combustion |
Applications:
Widely used in mechanical equipment,load,furnace,smelting,wind power generation and solar power generation,used as energy absorption;In high-power electronic circuits used as shunt,voltage divider and load ;used in the regulating valve of static no power dynamic compensator (SVC) or thyristor converter valve of direct current transmission (HVDC).
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