·Postion:Home > VFD Control Cabinet for ESP Unit
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Introduction Recommend Contact us
    QYBP Series Variable Frequency Drive (VFD) switchboard for Electric Submersible Pump (ESP) Unit, developed by Dongying Orientsun Electric Co. Ltd., adopts imported low voltage VFD as well as a wideband step-up transformer which boosts the input voltage to ESP working voltage. This is the international control mode for ESP unit, in the domestic commonly known as high-low-high (HLH) control mode. The switchboard has two working modes of variable frequency and fixed frequency.
Product Features   
1.The switchboard reliability is improved by using imported low voltage VFD;
2.The lifetime of motor and cable is prolonged, because the output wave shape of VFD is like the sine wave after reformed by the filter and the wideband step-up transformer.
Technical parameters
1.Input voltage: 380~480V;
2.Output voltage: 800~4000V;
3.Power: 30~400kw;
4.Output frequency: 0~60Hz;
5.Dimension: L* W* H= 1200mm* 850(+460 ventilator) *2020 (mm);
6.Weight: 355kg (90kw)
Operating conditions
1.Altitude: ≦2000 m;
2.Temperature range: -30 ºC ~ +50 ºC (as requested);
3.Relative humidity: 20% ~ 90% RH, non-condensing;
4.Shell protection level: IP 20 (as requested);
5.No explosive and flammable materials, no corrosive gas, conducting dust and violent vibration.
Technical Parameters of Transformer:
1.Working voltage:
Input voltage: 380~480V;
Output voltage: 800~1500V,   1500~2500V, 2500~4000V;
2.Working frequency: 15~60Hz; 
3.Capacity: 80~800KVA;
4.Insulation grade: A level. 


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