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Brand Name : | ZENITHSUN |
Model Number : | SLR |
Certification : | RoHs |
Price : | US$15~US$30 per piece |
Payment Terms : | T/T, L/C, D/A, D/P, Western Union,paypal |
Supply Ability : | 50000pcs per month |
Delivery Time : | 7~10 working days |
3KW Tube Copper Water Cooled Wirewound Resistors With Mounting Bracket
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.
5.The Copper Tube Water Cooled Resistors is made of high-quality
Red Copper as the matrix,unique insulating material and
high-precision alloy wire wound. The unique welding method welding
+ 100% water pressure sealing test of each resistance eliminates
the hidden danger of water leakage. Its outlet water temperature is
between 40 ℃ and 60 ℃. When in use, the cooling water shall be
supplied first, and then the power shall be supplied after the
water flow meets the requirements and fills the inner cavity of the
resistor; During shutdown, cut off the power supply first and then
the water to avoid dry burning and damage of the resistor.
6.Ideal electronic component to be assembled inside high-power load
banks.
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 |
Application
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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