The transistor frequency converter with forced air cooling is made in the form of a separate cabinet, In = 100A, Un = 380V, reactor connection.
The converter is made in the climatic performance of the UHL, the placement category 4 according to GOST 15150 and GOST 15543.1. The upper working value of the ambient air temperature is +40 C. They are allowed at a height above sea level up to 1000 m and with dust content in the environment and in the cooling air up to 0.7 mg/m3. The exposure to the vibration loads in the group M2 GOST 17516.1 withstand the effect of the upper frequency of the range should not exceed 55 Hz.
The degree of protection provided by shells in accordance with GOST 14254 should be IP54.
1.1 The frequency converter (FrC) transforms alternating current with a frequency of 50 Hz, with a voltage of 380 V into a three -phase alternating variable voltage in size and frequency. The converter meets the requirements of GOST 24607.
1.2 The composition of the FrC includes:
– power circuit breaker;
– input reactor;
– the power unit of the converter;
– control system;
– sinus filter;
– brake module;
– brake resistance.
1.3 The inverter is resistant to overload at a level corresponding to a 1.5 rated output current for 60 s after which the converter is disconnected if the average current value of the current during the averaging time of 5 minutes exceeded the nominal value of the nominal value.
2.4 The frequency converter provides:
– start and control of engine speed;
– reverse;
– acceleration, slowdown, stop;
– protection of the engine and converter;
– dynamic braking when stopping;
– “picking up” on the go;
– pi-regulation of the technological parameter;
– pre -set speeds;
– automatic re -inclusion;
– linear or S-shaped speed sensor.
Estimated cost: 368 945 UAH (excluding VAT).