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Zhejiang New Folinn Electric Co., Ltd.

Frequency Inverter, Frequency Converter, AC Drive manufacturer / supplier in China, offering Bd381 Special All-in-One Inverter for Pumping Units High Performance Vector Control Frequency Inverter VFD Variable AC Drive, Bd331 Special Inverter for Constant Pressure Water Supply, DC to AC Solar Water Pump Frequency Inverter/Converter and so on.

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Supplier Homepage Product Low Voltage Inverters Special Inverters Bd381 Special All-in-One Inverter for Pumping Units High Performance Vector Control Frequency Inverter VFD Variable AC Drive

Bd381 Special All-in-One Inverter for Pumping Units High Performance Vector Control Frequency Inverter VFD Variable AC Drive

FOB Price: US $100 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $100/ Piece
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Production Capacity: 1000 Set/Day
Transport Package: Standard Carton/Wooden Case
Payment Terms: L/C, T/T, D/P, Paypal, Western Union

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Basic Info
  • Model NO.: BD381
  • Output Type: Triple
  • Switch Mode: PWM Control
  • Voltage of Power Supply: Low Voltage Variable-Frequency Drive
  • Nature of DC Power: Voltage Variable-Frequency Drive
  • Brand: Folinn
  • Communications: RS485
  • Motor Control: Sensorless Vector Control
  • OEM Service: Accept
  • Trademark: Folinn
  • Origin: China
  • Application: High-performance Transducer, Three Phase Transducer, General Transducer, Single-phase Transducer
  • Principle of Work: Vector Control Transducer
  • Main Circuit Type: Voltage
  • Link of Transformation: AC-DC-AC Variable-Frequency Drive
  • Function: Simple Type
  • Color: Dark Grey
  • Certifications: ISO9001:2008, CE
  • Enclosures: IP20
  • Export Markets: Global
  • Specification: CE, ISO9001
  • HS Code: 85044090
Product Description

Product overview

Inverter control cabinet of BD381 series specially for pumping units is designed by Fuling Company according to the actual production need of oil fields. The power range is between 15 to 75Kw. It is equipped with energy feedback as an organic whole, as well as dust prevention, waterproof function and anti-slide function; high torque outputs in low speed. Reasonable optimization are implemented by research personnel in terms of performance, reliability and stability, which makes its energy-saving and cost-reducing advantage and other superiority presented to users more evidently during the use process, thus making it the first choice in oil field power drive industry.

Product features

Integrate the inverter and energy feedback as an organic whole, and send back the energy of pumping units in generating state to the power grid, which makes the energy-saving more obvious.
The control mode that making the generating energy and output frequency correspondent are used through the control over output frequency of the inverter.
Meet the standard that overvoltage protection will not occur during electricity generation of pumping units. Meanwhile, it is applicable to be used by oil fields of different types.
Take full consideration of dust prevention, waterproof function and anti-slide function.
Volume of control cabinet is reduced. Cost is low and repair is convenient. The interference to power grid is reduced.
Internally installed heating units. It keeps running even in low temperature.
The electricity meter can be installed inside. The energy-saving is evident.
Industrial design of inverter ensures the continuity of production.
Power range:15kW~75kW


Bd381 Special All-in-One Inverter for Pumping Units High Performance Vector Control Frequency Inverter VFD Variable AC Drive

Technical parameters

Input voltage: 1AC220V±15%   3AC220V±15%   3AC380V±15%   
Input frequency: 47~63Hz power factor≥95%
Control mode: Non-PG vector control and V/F control. Thereinto, V/F control is divided into three curves such as linear type, multipoint type and multiple power of two type.
Source of operation instruction:  Given by panel, terminal and RS485 communication
Source of given frequency: Given by panel figure, analog quantity, RS485 serial communications, multi-speed simple PLC and PID etc. Overload capacity: type B:150% rated current 60s,180% rated current10s
Pull-in torque: 0.5Hz/150%(non-PG vector control (SVC),range of speed 1:100(SVC),control accuracy of speeds: non-PG : ±0.5%.
Carrier frequency: 1.0kHz~15.0kHz,and can be automatically adjusted according to temperature and load characteristic.
Frequency resolution: The given digital value is 0.01Hz,and the analog quantity is given as the highest frequency multiplied by 0.1%.
Torque elevation: Manual torque can elevate 0~30%.
Modes of acceleration and deceleration: Linear type. Two acceleration and deceleration are optional.
Brake: DC braking when starting and closing down
Inching operation: Frequency range: 0.0Hz~ Maximum output frequency, inching acceleration and deceleration duration:0~3600.0s
Simple PLC and multi-speed operation: As many as 16 speeds operation can be realized through built-in PLC or controlling terminals
Internally installed process PID: Convenient for the realization of close-loop control of quantity of process (pressure, temperature, rate of flow)
Automatic voltage regulation: Automatically keep the output voltage stable during voltage fluctuations
DC bus can be shared by many inverters and the energy is balanced automatically
Input and output terminal:6 DI input terminal,2 relay output terminal,1OC transistor output
,2 analog input,1 analog output
LED can display set frequency, output frequency, output voltage, current output etc;


The high-performance inverter control cabinet specially designed for the pumping units of oil field (Pumpjack) .




Why choose Folinn?

1. One of earliest inverter (AC Drive) manufacturer in China since 1994
(more than 20 years history)
2.TOP 10 inverter manufacturer in China many years continuous 
3. CEEIA Council Member of Inverter Industry in China
4. National Torch Program
5. National High-tech Enterprise

Our customer

LSIS Co., Ltd -(Top of industrial electrical automation products manufacturer in Korea)
2008 Beijing Olympic stadium (National stadium)
Coca Cola Company Qingdao branch
SLOF ( Shengli Oil Field---Second largest oil production base in China)
Tsingtao Beer-(one of the global top 500 companies)
Shanghai East Pump(Group)-(Top pump brand in china)
Our AC drive have export to all over the world.Such as USA,Canada,Malaysia,Russia,Australia,Portugal,
Switzerland,Korea,Poland,United Arab Emirates,Viet Nam,Korea,,Pakistan,Kazakhstan,India,

1. Payment
For small order by air or by express, it is 100% T/T in advance. For large order by sea, 30% deposit of the order value should be paid, 70%
of the balance payment should be done against the copy of bill of lading.

2. Delivery terms
Sample order: 3-7 working days for delivery. Large order: 14-20 working days for delivery.
3. Packing
Folinn standard packing (carton or wooden case), OEM packing (≥10,000usd per order)

4. Warranty
24 months from shipping date of B/L and lifetime technical support services.
Main component:
IGBT: Infineon-Germany (We are Infineon Technologies Global "best strategic partner"), Fuji Electric-Japan
Capacitor: Nichicon-Janpan,EPCOS-Germay,Jianghai& Yipin(World-class brand in China)
CPU: Texas Instruments-Germany,Avago Technologies-USA,SHARP-Japan,TOSHIBA-Japan
Bridge rectifier: SEMIKRON-Germany,SanRex-Japan,Microsemi-USA,SILING(World-class brand in China)

Contact person:      

Sales department

Zhejiang New Folinn Electric Co.,Ltd
Add: No.2.Jinhuan Road,Chengbei Street,
Wenling City,Zhejiang,China

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