Ceramic Tube Edgewound High Power Resistor For Elevator Control
High Power Ceramic Tube Edgewound Resistors For Elevator Control
Structure:
1.High Power,small size & fast heat dissipation,multi-tap and non-inductive winding are available.
2.Can be combined to be arranged in the load banks.
Features:
1.Edgewound Resistors are designed and built to meet the most demanding mechanical and electrical requirements in the industry.
2.They are constructed of flat stainless steel electrical alloy,wound on its edge to form a helical resistive element.The element is then mounted on solid porcelain cores.Welded terminals at both ends of the resistor provide the means of connection and terminations.
3.Special porcelain cores are designed for through bolt or flat bar frame mounting.
Specification:
| Test | Conditions of Test | Testing Results |
| Resistance Tolerance | Testing Voltage ≤3V,Ambient Temperature 25℃ | B---D---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,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 |
Application:
Widely used inOverhead crane and hoist forklifts,mine locomotive,starting and speed regulation of wound rotor motors ,neutral grounding of transformers and generators,elevator control,ect.
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