SKID-Mounted VSD
Function
The high-voltage control unit is designed to protect and control submersible three-phase asynchronous and permanent magnet motors as the part of an electric submersible pump installation for oil production
Operation conditions
Climatic performance - Т1.
Ambient temperature: -10 to +50 °С (maximum permissible: +60 ° С).
It is possible to manufacture plants for operation at temperatures from minus 50 to plus 50 ° C at the request of the customer.
The upper value of the relative humidity is 100% (at the temperature of +25 °C).
According to the content of corrosive agents, the atmosphere is of type II.
Atmosphere pressure:
- lower value of atmospheric pressure – 0.84 bar;
- the upper value of atmospheric pressure is 1.067 bar.
Altitude - no more than 1000m.
Degree of protection
IP43.
The operating mode is continuous. Permanent presence of staff not required.
The design and layout of the main elements
The installation casing is made in the form of a welded, frame carcass of the container type.
1. Step-down high voltage transformer compartment
2. Carcass
3. Step-down high voltage transformer compartment
4. Step-Up Transformer
5. VSD control and monitoring compartment
6. Step-Down Transformer
Key specifications
Power Supply Parameters:
| rated voltage, V | 33000 ±15% |
| rated frequency, Hz | 50 ±1 |
| rated current, A | 4,37 |
| rated power, kVA | 250 |
| immunity to distortion of the sinusoidal voltage of the supply network, not more than,% | 20 |
| number of input voltage regulation steps | 5 |
Power parameters of the VSD (six-pulse or twelve-pulse rectifier):
| rated voltage, V | 480 |
| permissible deviation of the supply voltage,% | –20 ÷+15 |
| rated frequency, Hz | 50 ±1 |
| rated power, kVA | 200 |
Submersible motor power parameters:
| output voltage, V | 0÷3500 |
| range of regulation of the output frequency, Hz | |
| for asynchronous motor | 1÷80 |
| for permanent magnet motor | 1÷200 |
| maximum permissible value of frequency deviation, Hz | ±0,15 |
| output current, A | 0÷56 |
| number of steps for regulating the output voltage (step x%) | 25х4 |
| distortion coefficient of the sinusoidality of the output voltage curve, not more than,% | 5 |
Options for power supply:
| rated voltage, V | 380 |
| rated current, A | 69,6 |
| rated power, kVA | 50 |