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BPJ Mining Flameproof and Intrinsically Safe Converter, 660 / 1140 V
Wolong BPJ Mining Flameproof and Intrinsically Safe Converter, 660 / 1140 V: 60 - 800 kW, 660 V, 1140 V, Ex d [ib] I. Quote within 24 hours.
- Genuine Wolong NanyangOriginal factory nameplate, test report and documents
- Certified for hazardous areasATEX, IECEx, CSA, EAC, CNEX and CCC certificates held by Wolong Nanyang
- Model check in 24 hoursEngineers match power, voltage, Ex marking and mounting
- Worldwide deliverySeaworthy export packing, CIF or with your forwarder
Product Description
The BPJ mining flameproof and intrinsically safe converter is a new-generation low-voltage mine drive with a complete range, compact design and good value, and it can be customised in depth.
V/F or open-loop vector control drives three-phase induction motors and low-speed PM synchronous motors; up to 8 drives share load automatically. A colour Chinese / English HMI, fault and operation records with USB export and over ten years of data storage are standard.
Key Specifications
| Series | BPJ |
|---|---|
| Voltage | 660 V, 1140 V |
| Power range | 60 - 800 kW single, up to 2 × 630 kW combined |
| Control | V/F or vector |
| Output frequency | 0 - 100 Hz (higher on request) |
| Operation | two-quadrant or four-quadrant |
| Configuration | single unit or multi-unit combination |
| Cooling | heat-pipe self-cooling, air or water cooling |
| Explosion protection | Ex d [ib] I |
Applications
Belt conveyors, scraper conveyors, emulsion pumps and fans in underground coal mines.
Documents Supplied
For each order we can provide the technical data sheet, outline drawing, routine test report and, for explosion-proof equipment, a copy of the Ex certificate that matches the nameplate marking. Tell us in the inquiry which documents your project or your inspector requires, so they are prepared before shipment.
Related Products
- OLI-Wolong MVE Vibration Motors, Standard & ATEX
- MVC Medium-Voltage Variable Frequency Drive, 200-15000 kVA
- High-Power Water-Cooled Frequency Converter, 5-40 MVA
Explosion Protection Explained
The marking Ex d [ib] I combines a flameproof enclosure ("d") for the power section with intrinsically safe ("ib") control and signal circuits. Group I equipment is designed for underground coal mines where methane (firedamp) and coal dust may be present.
Selection Table
The BPJ is the fifth generation of Wolong Nanyang mining converters, which have been in service since the first unit in 1998. It drives induction or permanent-magnet motors on belt conveyors, scraper conveyors, emulsion pumps, stage loaders, crushers, winches and water pumps.
| Model | Supply | Output | Size L × H × D (mm) | Weight (kg) | Cooling |
|---|---|---|---|---|---|
| BPJ-60/660 | 660 V | 60 kW | 719 × 925 × 780 | 290 | Heat pipe, natural |
| BPJ-110/660 | 660 V | 110 kW | 719 × 925 × 980 | 330 | Heat pipe, natural |
| BPJ-280/660 | 660 V | 280 kW | 1565 × 1100 × 1150 | 1400 | Heat pipe, natural |
| BPJ-400/660 | 660 V | 400 kW | 1565 × 1100 × 1150 | 1400 | Heat pipe + fan / water |
| BPJ-200/660K | 660 V | 200 kW | 1900 × 1200 × 1200 | 1400 | Heat pipe + fan |
| BPJ-315/660K | 660 V | 315 kW | 1900 × 1200 × 1200 | 1400 | Heat pipe + fan / water |
| BPJ-500/660K | 660 V | 500 kW | 1900 × 1200 × 1200 | 1400 | Heat pipe + fan / water |
| BPJ-132/1140 | 1140 V | 132 kW | 1025 × 1050 × 980 | 650 | Heat pipe, natural |
| BPJ-200/1140 | 1140 V | 200 kW | 1025 × 1050 × 1080 | 700 | Heat pipe, natural |
| BPJ-280/1140 | 1140 V | 280 kW | 1565 × 1100 × 1150 | 1400 | Heat pipe + fan / water |
| BPJ-355/1140 | 1140 V | 355 kW | 1565 × 1100 × 1150 | 1400 | Heat pipe + fan / water |
| BPJ-400/1140 | 1140 V | 400 kW | 1565 × 1100 × 1150 | 1400 | Heat pipe + fan / water |
| BPJ-500/1140 | 1140 V | 500 kW | 1935 × 1155 × 1250 | 1700 | Heat pipe + fan / water |
| BPJ-630/1140 | 1140 V | 630 kW | 1935 × 1155 × 1250 | 1700 | Heat pipe + fan / water |
| BPJ-800/1140 | 1140 V | 800 kW | 1935 × 1155 × 1250 | 1700 | Heat pipe + fan / water |
| BPJ-2×110/660 | 660 V | 2 × 110 kW | 1840 × 1050 × 980 | 1200 | Heat pipe, natural |
| BPJ-2×280/660 | 660 V | 2 × 280 kW | 1935 × 1155 × 1250 | 1800 | Heat pipe + fan / water |
| BPJ-2×400/660 | 660 V | 2 × 400 kW | 1935 × 1155 × 1250 | 1800 | Heat pipe + fan / water |
| BPJ-2×315/1140 | 1140 V | 2 × 315 kW | 1935 × 1155 × 1250 | 1800 | Heat pipe + fan / water |
| BPJ-2×400/1140 | 1140 V | 2 × 400 kW | 1935 × 1155 × 1250 | 1800 | Heat pipe + fan / water |
| BPJ-2×500/1140 | 1140 V | 2 × 500 kW | 1900 × 1400 × 920 | 2300 | Water |
| BPJ-2×630/1140 | 1140 V | 2 × 630 kW | 1900 × 1400 × 920 | 2300 | Water |
Technical Data
| Output frequency | 0 - 100 Hz (higher on request); carrier 1 - 2 kHz, automatically adjusted |
|---|---|
| Control | High-performance V/F or vector control; starting torque 200 % at 0.5 Hz; speed range 1:100; speed accuracy ±0.5 % |
| Power factor / efficiency | Above 0.9 / above 97 % |
| Overload | 110 % for 60 min, 150 % for 60 s, 180 % for 2 s |
| Functions | Torque boost, linear / multi-point / square V/F curves, S-curve ramps, 16 preset speeds, PID, AVR, oscillation damping, torque limit, stall prevention, fast current limit |
| Power balancing | CAN-bus load sharing between up to 8 converters; the remaining drives keep running if one is taken out |
| I/O and communication | 6 digital and 2 analogue inputs (1 - 5 V or 4 - 20 mA), 5 digital outputs, 1 pulse output; RS485 Modbus-RTU |
| Display | 7-inch colour LCD, 300-event fault memory, data stored for 10 years and exportable; metal mining keypad plus push-buttons |
| Protection | Output short circuit, input / output phase loss, over-current, over- and under-voltage, overload, over-temperature, IGBT short circuit, fan, communication, pre-charge and earth-leakage lock-out |
| Build | Film DC capacitors (15+ years), built-in output reactor, input isolating breaker; PLC, gateway and switch can be built in |
| Environment | 0 to +40 °C (derated to +50 °C), up to 1500 m, humidity below 95 %, vibration below 5.9 m/s² |
| Explosion protection | Ex d [ib] I Mb |
Fan Version: BPJ2 Converter for Auxiliary Ventilation Fans
The BPJ2 ...F drive controls the local fan of a development heading from three methane sensors: fuzzy logic sets the fan speed so that the gas at the return junction stays below the safe limit, without blowing all the gas out at once. It soft-starts the fan and saves the energy of a fan running flat out. The dual-supply ...SF version feeds the main and the standby fan from two independent supplies and switches between them automatically. Wolong Nanyang built the first such flameproof fan drive in China in 1997.
| Model | Supply | Output | Size L × H × D (mm) | Weight (kg) |
|---|---|---|---|---|
| BPJ2-60/660F | 660 V | 60 kW | 719 × 925 × 780 | 290 |
| BPJ2-110/660F | 660 V | 110 kW | 719 × 925 × 980 | 330 |
| BPJ2-110/1140F | 1140 V | 110 kW | 1025 × 1050 × 980 | 650 |
| BPJ2-132/1140F | 1140 V | 132 kW | 1025 × 1050 × 980 | 650 |
| BPJ2-45/660SF | 660 V | 2 × 45 kW | 1840 × 1050 × 980 | 1050 |
| BPJ2-75/660SF | 660 V | 2 × 75 kW | 1840 × 1050 × 980 | 1050 |
| BPJ2-110/660SF | 660 V | 2 × 110 kW | 1840 × 1050 × 980 | 1150 |
| BPJ2-110/1140SF | 1140 V | 2 × 110 kW | 1840 × 1050 × 980 | 1200 |
| BPJ2-132/1140SF | 1140 V | 2 × 132 kW | 1840 × 1050 × 980 | 1200 |
BPJ2 data: 0 - 50 Hz, overload 120 % for 60 s / 150 % for 10 s / 180 % for 2 s, V/F or vector control, heat-pipe natural cooling, Ex d [ib] I Mb.
Common Questions
What power range does the BPJ cover?
The BPJ covers 60 - 800 kW.
Which voltages are available for the BPJ?
Rated voltage: 660 V, 1140 V. Other voltages can be checked on request.
Which explosion protection does the BPJ have?
The marking is Ex d [ib] I. Tell us the zone, gas group and temperature class of your site and we confirm the right version.
How is the BPJ cooled?
Cooling method: heat-pipe self-cooling, air or water cooling.
How to Order
For a fast, accurate quotation please send: rated power (kW), voltage and frequency, motor rating and load type, supply voltage, hazardous-area requirements, quantity and destination port. For a replacement, a photo of the old motor nameplate is the quickest way to match it. Lead time (about 80 days), documents and shipping are explained on our Export Service page.
Frequently Asked Questions
Do your explosion-proof motors have ATEX and IECEx certificates?
Yes. Wolong Nanyang explosion-proof motors, both low-voltage and high-voltage, are available with ATEX and IECEx certificates for Europe and international projects, and GOST for the Russian market. Tell us which certificate you need when you ask for a quote.
Can this motor replace my existing motor?
Yes. For new projects we quote and select the model to your requirements. For a replacement, please send a nameplate photo or outline drawing of the old motor, and we will match the shaft height, mounting and installation dimensions.
Can you supply replacements for Schorch, Brook Crompton or Morley motors?
Yes. Schorch, Brook Crompton and Morley belong to the Wolong Electric Group, and we can supply Wolong motors built to replace them, matched to your mounting dimensions.
Can you ship to my country, and what is the lead time?
Yes. We ship worldwide on CIF terms, or you can use your own forwarder. The usual production time is about 3 months, depending on the model and quantity.
What information do you need for a quotation?
Rated power (kW), voltage and frequency, number of poles or speed, Ex marking or hazardous zone, mounting type (e.g. B3, B35, V1), quantity and destination port. A nameplate photo of the old motor helps if it is a replacement.
Get a Quote for BPJ Mining Flameproof and Intrinsically Safe Converter, 660 / 1140 V
Send us your requirements. An engineer will reply with a model check and price within 24 hours.
