English
The Electrical Control Cabinet is a dedicated device that controls the start and stop of the electric submersible pump (ESP) unit, monitors and records its operating status, and automatically performs power-off protection when abnormal conditions occur during operation. Currently, four types of control cabinets are commonly used: power-frequency control cabinets, soft-start control cabinets, low-voltage variable-frequency control cabinets, and medium-voltage variable-frequency control cabinets.
International Standard：ISO 13628 , IEC 60034 , IEC 60529 , IEC 60947, IEC 60079
National Standard：GB/T 16750 , GB/T 3797 , GB 4208 , GB/T 14048 , GB 7251.1
Industry Standard：API RP 11S1 , API 14F
Enterprise Standard: AT-ST-013
Power Supply Voltage Protection
Three-Phase Current Protection
Overload Protection
Underload Protection
Under-Voltage Protection
Delayed Start
Delayed Shutdown
Current Recording
| Model & Specification | Rated Current（A） | Rated Voltage（V） | A (Width) × B (Depth) × H (Height) |
| 1.2kV class | 50、80、100、120、150 | 1140 | 460×520×1500 |
| 2.5kV class | 50、80、100、120、150 | 2500 | 600×630×1700 |
| 3kV class | 50、80、100、120、150 | 3000 | 600×630×1700 |
| 3.6kV class | 50、80、100、120、150 | 3600 | 600×630×1700 |
| Model & Specification | Rated Current（A） | Rated Voltage（V） | A (Width) × B (Depth) × H (Height) |
| 1.2kV class | 50、80、100、120、150 | 1140 | 460×520×1500 |
| 2.3kV class | 50、80、100、120、150 | 2300 | 600×630×1700 |
● Altitude：≤2000m
● Ambient temperature：-30℃/-22℉ — +50℃/122℉
● Relative humidity：≤85%
●Free of flammable and explosive substances, gases corrosive to insulation, and conductive dust
●Installed in places free from severe vibration, with vertical inclination ≤ 5°
| No. | Parameter Name | Data |
| 1 | Rated Input Voltage |
380 V – 480 V±10%,3P 380 V – 480 V ±10%, 3-phase |
| 2 | Rated Input Frequency | 50Hz±10% |
| 3 | Output Frequency | 0 - 120 Hz, adjustable |
| 4 | Output Frequency Resolution | 0.01Hz |
| 5 | Control Power Supply Voltage | AC220V |
| 6 | Rated Output Power | 110 kW–630kW |
| 7 | Rated Output Current | 215A–1188A |
| 8 | Output Voltage Range | 0 - Input Voltage |
| 9 | Rectifier Type | 6 - pulse diode rectifier |
| 10 | Inverter Transistor Type | IGBT |
| 11 | External Communication Interface | RS485、RS232 |
| 12 | External Communication Model | Cable |
| 13 | Protection Function | Overload, underload, short circuit, phase loss, over-temperature |
| 14 | Cooling Method | Forced air cooling |
| 15 | Input Power Factor | 0.98 |
| 16 | Efficiency | ＞98% |
| 17 | Output Filter | Sine wave |
| 18 | Rated Duty Cycle | Continuous |
| 19 | IP Grade / Protection Grade | IP23 |
| 20 | Overload Capacity | 150% rated torque, duration 60 s |
| 21 | Operating Ambient Temperature |
-15 ℃ ～ 50 ℃ 5 ℉ ～ 122 ℉ |
| 22 | Storage / Transportation Temperature |
-40 ℃ ～ 55 ℃ -40 ℉ ～ 131 ℉ |
| 23 | Ambient Humidity | ≤95% (at +20 ℃), non-condensing |
| 24 | Installation Altitude | ≤1000m，derating required if exceeded |
| 25 | Input Side Harmonic Component | H5=36%,H7=17.8%,H11=8.1%,H13=5.3% |
| 26 | Input Side Harmonic Content | ＜5% |
| 27 | Control Mode | Multi-point V/F, vector V/F |
| 28 | Inlet & Outlet Wiring Mode | Top in & top out, bottom in & bottom out |
| No. | Parameter Name | Data |
| 1 | Rated Input Voltage | 380 V – 690 V ±10%, 3-phase |
| 2 | Rated Input Frequency | 50Hz±10% |
| 3 | Output Frequency | 0 - 120 Hz, adjustable |
| 4 | Output Frequency Resolution | 0.01 Hz |
| 5 | Control Power Supply Voltage | AC 220 V |
| 6 | Rated Output Power | 110 kW–900 kW |
| 7 | Rated Output Current | 202 A–1535 A |
| 8 | Output Voltage Range | 0 - Input Voltage |
| 9 | Rectifier Type | IGBT |
| 10 | Inverter Transistor Type | IGBT |
| 11 | External Communication Interface | RS485、RS232 |
| 12 | External Communication Mode | Fiber Optic |
| 13 | Protection Function | Overload, Underload, Short circuit, Phase loss, Over-temperature |
| 14 | Cooling Method | Forced air cooling |
| 15 | Input Power Factor | 0.98 |
| 16 | Efficiency | ＞98% |
| 17 | Output Filter | Sine wave |
| 18 | Rated Duty Cycle | Continuous |
| 19 | IP Grade / Protection Grade | IP23 |
| 20 | Overload Capacity | 150% rated torque, duration 60 s |
| 21 | Operating Ambient Temperature |
-15 ℃ ～ 50 ℃ 5 ℉ ～ 122 ℉ |
| 22 | Storage / Transportation Temperature |
-40 ℃ ～ 55 ℃ -40 ℉ ～ 131 ℉ |
| 23 | Ambient Humidity | ≤95% (at +20 ℃), non-condensing |
| 24 | Installation Altitude | ≤1000 m; derating required if exceeded |
| 25 | Input Side Harmonic Component | 4% |
| 26 | Input Side Harmonic Content | ＜5% |
| 27 | Control Mode | Multi-point V/F, vector V/F |
| 28 | Inlet & Outlet Wiring Mode | Top in & top out, bottom in & bottom out |
| No. | Parameter Name | Data |
| 1 | Rated Input Voltage | 0.6 KV -2.6 KV±10% |
| 2 | Rated Input Frequency | 50 Hz ± 10% |
| 3 | Output Frequency | 0 - 120 Hz,adjustable |
| 4 | Output Frequency Resolution | 0.01 Hz |
| 5 | Control Power Supply Voltage | AC 220 V |
| 6 | Rated Capacity | 45 kVA–300kVA |
| 7 | Cooling Method | Forced air cooling |
| 8 | Input Power Factor | Above 0.98 at >20% load |
| 9 | Rated Duty Cycle | Continuous |
| 10 | IP Grade / Protection Grade | IP20 |
| 11 | Overload Capacity | 120% for 1 hour, 150% for 1 minute |
| 12 | Operating Ambient Temperature |
-15 ℃ ～ 50 ℃ 5 ℉ ～ 122 ℉ |
| 13 | Storage / Transportation Temperature |
-40 ℃ ～ 55 ℃ -40 ℉ ～ 131 ℉ |
| 14 | Ambient Humidity | ≤90% (at +20 ℃), non-condensing |
| 15 | Installation Altitude | ≤1000 m; derating required if exceeded |
●Altitude shall not exceed 1000 m; derating is required if the altitude exceeds 1000 m.
●Operating ambient temperature: -5 ℃ to +40 ℃, daily average temperature not exceeding +35 ℃, ambient temperature variation not greater than 5 ℃/h. If the ambient temperature exceeds the allowable range, appropriate air conditioning equipment shall be equipped.
●Maximum relative humidity of ambient air: ≤ 90% (at 20 ℃); ≤ 50% at +40 ℃.
●The installation foundation shall be free from severe vibration and shock, with vertical inclination not exceeding 5%.
●The operating environment shall be free of conductive or explosive dust, and free of gases or vapors that corrode metals or damage insulation.
●Continuous voltage fluctuation of the AC input power supply shall not exceed ±10% of the rated value.
●Frequency fluctuation range of the AC power grid: 45 Hz–55 Hz, with frequency variation rate not exceeding ±1% per second.
●For indoor use only with good ventilation; clearances above and around the device shall be ≥ 700 mm.
●Equipped with protections including overvoltage, undervoltage, overcurrent, phase loss and short circuit.
●Equipped with LED display to show output current, voltage, frequency, etc.
●System parameters can be set via the keypad.
●It can operate in both variable frequency mode and power frequency mode.
●Under variable frequency operation, the working mode can be manual or automatic.
●Starting time and operating frequency can be set arbitrarily.
Q1: What equipment is the Variable Speed Drive Electrical Control Cabinet mainly used for?
A1: This Variable Speed Drive Control Cabinet is special supporting equipment for all kinds of submersible pumps, such as high-temperature pumps, deep well pumps and river intake pumps. It fits oilfield water delivery, deep well water supply and river water intake projects.
Q2: What are the core advantages of frequency conversion control compared with traditional fixed-speed control?
A2: Compared with traditional fixed-speed control boxes, the Variable Speed Drive Electrical Control Cabinet can adjust pump speed freely as needed. It saves more energy, reduces equipment wear with soft start, and has full safety protection, making pump operation more stable, safe and power-saving.
Q3: Can this control cabinet adapt to harsh outdoor working environments?
A3: Yes. This Electrical Control Cabinet adopts sealed industrial shell and high-quality internal parts. It is dustproof, waterproof and anti-interference, and can work stably in humid, dusty and outdoor environments for oilfield, water well and river water intake projects.
We follow strict quality control for every Variable Speed Drive Electrical Control Cabinet. Different from ordinary single-part inspection, all our cabinets are tested with matched submersible pump sets before delivery. Each equipment passes full running test, speed adjustment test and load simulation test. This real pump matching test ensures perfect coordination between the cabinet and the pump. All products are delivered only after passing the complete matching test, to guarantee stable and reliable field operation.
We have rich experience in developing and producing submersible pump control equipment. All Variable Speed Drive Electrical Control Cabinet products are strictly tested, with stable quality and low failure rate. We support customized parameters and functions to fit different pumps and working conditions. We provide complete pre-sales consultation, on-site guidance and after-sales maintenance services. Our products are sold worldwide, serving various oilfield, water well and river water intake projects with cost-effective and stable control solutions.
