Ud. de frenado de resistencia, 200 kW, 300 HP, para variador de velocidad

Ud. de frenado de resistencia, 200 kW, 300 HP, para variador de velocidad. compatibilidad de la gama: Altivar 61, Altivar 61Q, Altivar 71, Altivar 71Q - potencia máxima frenado: 420 kW - compatibilidad de productos: ATV61HC25N4, ATV61HC31N4, ATV61QC20N4, ATV61QC25N4, ATV61QC31N4, ATV71HC20N4, ATV71HC25N4, ATV71HC28N4, ATV71QC16N4, ATV71QC20N4, ATV71QC25N4 - pérdidas térmicas: 550 W - umbral de activación: 785 V CC +/- 1 % - valor de resistor mínimo para asociar: 1,05 Ohm. Beneficios: Highest robustness during operation, Excellent protection against corrosion due to cooling pipes made of stainless steel, Efficient cooling system: 85 to 100% of waste heat is dissipated into the drive water-cooling system, Marginal deposits due to smooth flow channel, Reliable operation also when industrial water or fresh water is used for cooling, Use in an open or closed cooling circuit possible, Wide temperature range of the coolant up to+55°C, Reduced need for air-conditioning, Prolonged maintenance-free operational life. Reliable and simple installation, Clear separation of electrical and hydraulic connections, Internal separation wall between electronics and cooling water, Complete de-aerating due to the connections arranged at the top. Consistency to the Altivar products, Control, operation and programming is absolutely identical to the air-cooled devices, Options of the Altivar 61 & Altivar 71 product lines can be used.. Aplicaciones: Mining and tunneling. Enclosures in protection degree IP55 or higher, closed containers or also pressure-resistant encapsulation require a complete heat abstraction of the whole electrical drive unit. Therefore 100% of the losses must be dissipated by the cooling water. This can be done easily with an additional air/water heat exchanger. Thereby the monitored fans in the inverter provide the required air circulation inside the enclosure. The significant advantages of the Altivar 71Q for this application are:, Fans for internal air circulation are already built-in., Full overload is available even in the smallest speed range., "Low noise" requirements are optimally fulfilled due to the completely closed inverter unit. Shredders. A dust loading even with conductive particles cannot be prevented around shredder drives, especially in case of recycling processes. As a result, special requirements regarding the protection degree are needed for the electrical installation. In a perfectly adapted drive system, sealing walls between the accessible connecting area, the inverter enclosure and the cooling enclosure prevent intrusion of dangerous particles. The significant advantages of the Altivar 71Q for this application are:, The inverter enclosure is securely closed and must not be opened for connection or start-up., The very high starting torque is available unchanged also in case of frequent starting., The monitored fans in the inverter as well as the air/water heat exchanger reliably provide the required cooling inside the inverter enclosure.. Beneficios: Highest robustness during operation, Excellent protection against corrosion due to cooling pipes made of stainless steel, Efficient cooling system: 85 to 100% of waste heat is dissipated into the drive water-cooling system, Marginal deposits due to smooth flow channel, Reliable operation also when industrial water or fresh water is used for cooling, Use in an open or closed cooling circuit possible, Wide temperature range of the coolant up to+55°C, Reduced need for air-conditioning, Prolonged maintenance-free operational life. Reliable and simple installation, Clear separation of electrical and hydraulic connections, Internal separation wall between electronics and cooling water, Complete de-aerating due to the connections arranged at the top. Consistency to the Altivar products, Control, operation and programming is absolutely identical to the air-cooled devices, Options of the Altivar 61 & Altivar 71 product lines can be used.. Aplicaciones: Plastics machines. Liquid cooling of electrical and mechanical units is already best-proven in the area of plastics machines. Due to their robust cooling system, the Altivar 61Q drives can be particularly integrated into existing cooling concepts. The Altivar 61Q shows flexibility for different cooling concepts:, Open or closed cooling circuit with industrial water, Open or closed cooling circuit with a high inlet temperature of up to+55°C, Open cooling system with flowing water cooling. Industrial applications. The lost heat of several drives with high power in an electrical room can easily lead to overheating of the operating room. On the other hand, when the main losses of the drives are dissipated to a liquid coolant, the installation of an expensive air conditioning can be avoided. With their internal liquid cooling the Altivar 61Q are optimally prepared for these applications. In this concept about 85 % of the inverter losses are dissipated from the electrical room by means of the cooling water. The Altivar 61Q shows flexibility for different cooling concepts:, With a common cooling circuit it is possible to conduct the losses from the electrical room or container to the heat exchanger., In case of a 2-step cooling circuit the air/water heat exchanger can be installed far away from the inverter and with high difference in altitude.... Beneficios: .. Aplicaciones: .. Beneficios: .. Aplicaciones: ..