Henan mine crane co., LTD., the product details Summary of the resistor. Resistor is suitable for the 50 hz ac voltage and dc voltage 600 v to 600 v circuit.Mainly used as the start of the motor, braking and speed are used. A resistor using the environment: Height is not more than 2500 meters above sea level; Surrounding medium temperature shall not exceed + 40 degrees and not less than 30 degrees; When + 5 degrees to 20 degrees - air relative humidity is not more than 85%; Surrounding medium without enough to corrosive action on metals, and damage the insulation and has an explosive dangerous gas and conductive dust; There must be rain and snow proof equipment will not be a region full of water vapor; In no violent or bumpy areas. Perform standard resistor IEC60204-32:19 98 "hoisting machinery electrical technical conditions" The general GB14048.1 "low-voltage switchgear and control equipment" GB6319-1992 "resistor basic technical requirements" JB/DQ6465-1994 "crane complete resistor" Resistor type of installation: Type 1 (IP20, gretai frame, outdoor installation) Type 2 (IP23, gretai, indoor installation) Type 3 (IP23, plate type resistance) Don't pack ark The application of the resistor: Braking resistor ark is commonly used in elevators, elevator, and double housing planer high-power inverter braking energy situation, it USES the power of the range is 15 kw to 200 kw.Voltage range: 0 v - 1410 - v;Resistance range: 0.5 Ω Ω - 100;Pressure: AC2500V 1 min / 50 hz;Resistance rated temperature: 375 ℃. The ark of the braking resistance of our company compared with other similar products have the following advantages: 1 smaller volume, can be more choose to use. 2 cooling fan according to temperature, automatically open. 3 braking resistor cabinet is made by coated aluminium zinc plate, when used in ground effect is good. 4 can achieve IP20 protection grade. Braking resistor ark when using the commonly used is 120 ℃ normally closed temperature control switch, in series inverter main circuit contactor coil, with resistance box fan, when the temperature reached 65 ℃, will open a cooling fan for forced air cooling.
