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Product Details:
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| Rated Power: | 15W-20KW | Resistance: | 0.1Ω - 100KΩ |
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| Tolerance: | ±5%,±10% | Colour: | Green Or Black |
| Type: | Adjustable | Technology: | Wirewound |
| High Light: | 300W High Power Variable Resistor,Wirewound High Power Variable Resistor,Braking Ceramic Tube Resistor |
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300W High Power Variable Ceramic Tube Wirewound Braking Resistors
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.Different assembly & fitting available,different styles of mounting brackets
3.Single unit with multi-resistance/ Multi-terminals also available;
4.Non-inductive & variable type on requests;
Features:
1.These resistors are suitable as loading resistor,braking resistor,capacitor discharge,resistive load simulation,machinery,machinery and equipment higher power application.
2.Mounting fixture is available.
3.Resistance adjustable version :DSR series .
4.Resistance box and load bank available with power up to 2000kW.
5.Support precision resistance tolerance requirement.
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 .
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Contact Person: Ruby zhou
Tel: 86 13684900949
