High Power Non Flammable Resistor Ceramic Tube Wirewound For Aging Testing
High Power Ceramic Tube Wirewound Resistor For Aging Testing
Structure :
1.The high temperature resistance ceramic tube is used as the resistance matrix,is wound with chrominum alloy wire,then coated with high temperature & non-flammable resin for protection to let resistors with better appearance and heat dissipation effect,after natural drying,baking at different temperatures before assembly.
2.The High Power Wirewound Resistor Series includes DDR&DQR(wave-shaped alloy ribbon)&DSR(variable wirewound ).They are called ceramic wirewound resistor,ceramic tube resistor,high power resistor,waved resistor,braking resistor,charge resistor,discharge resistor,dump load resistor,current limiting resistor,aging resistor or load resistor,ect.
3.Working voltage and Nominal resistance value are related to Ohm’s law.
Features:
1.In different applications,called ceramic wirewound resistors,ceramic tuberesistors,high power resistors,ripple resistors,braking resistors,charge resistor,discharge resistors,dump load resistors,current limiting resistors,aging resistors or load resistors,ect.
2.High power,shock resistance,fast heat dissipation,high stability,long life & fast delivery .
3.Taps/Termianls leading out for bolts/wire connection,solder,screw or fast-on terminals.
Specification:
| Performance Charactertics | ||
| Test | Conditions of Test | Testing Results |
| Resistance Tolerance | Testing Voltage ≤3V,Ambient Temperature 25℃ | B---D---F---G---J--K |
| Rated Load | 40℃,rated voltage,1hour | △R≤±(3％+0.1Ω) |
| Short Time Overload | 5 times rated power for 10s | △R≤±(0.2％+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 | 500V DC | ≥10GΩ1Min |
| Terminal Tensile Strength | 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) |
| 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 frequency converter,elevator,hoisting,ship,electric power,welding,power supply,military industry,aviation,wind power generation,solar power generation,generator test load,automation equipment,railway system and other industries ,
industrial machinery,electric power distribution,instruments, automation control installations,lift trucks,overhead cranes, elevators,arc and spot welders,battery chargers,machine tools,conveyors,and UPS systems.
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