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High Voltage Explosion-Proof Motors
YBFB High-Voltage Gas and Dust Explosion-Proof Motor, 160-2240 kW
Wolong Nanyang YBFB compact high-voltage motor with combined gas and dust protection Ex db IIC T4 Gb / Ex tb IIIC T130 °C Db: frames 355 - 560, 160 - 2240 kW, 3 - 11 kV. 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 YBFB is Wolong Nanyang's compact high-voltage motor with combined protection against explosive gas and combustible dust. One motor carries both markings, flameproof Ex db IIC T4 Gb and dust-protected Ex tb IIIC T130 °C Db, so it can be installed where gas and dust hazards occur together, for example coal mills, coal handling, metallurgy and power plants.
The series follows current international design practice for medium high-voltage motors and Wolong Nanyang's experience with compact high-voltage machines. For the same output it has a lower shaft height than earlier designs, which makes it compact and easy to fit.
Key Specifications
| Frame size | 355 - 560 |
|---|---|
| Rated power | 160 - 2240 kW |
| Rated voltage | 3 - 11 kV |
| Frequency | 50 Hz, 60 Hz |
| Poles | 2 - 12 |
| Explosion protection | Ex db IIC T4 Gb and Ex tb IIIC T130 °C Db |
| Insulation | 155 (F), temperature rise 80 K (B) |
| Cooling | IC411 (TEFC) |
| Mounting | IM B3, IM B35, IM V1 |
| Efficiency | Grade 2 of GB 30254 |
| Vibration | 2.0 mm/s (1.2 mm/s on request) |
| Noise | Lp 85 dB(A) or lower |
| Ambient | -15 to +40 °C, relative humidity up to 90 % at 25 °C, up to 1000 m |
| Environment | Indoor as standard; outdoor (W), outdoor anti-corrosion (WF1 / WF2), indoor anti-corrosion (F1 / F2), humid tropical (TH), dry tropical (TA) and outdoor tropical (THW / TAW) versions on request |
Design Features
- Compact: lower shaft height for the same power
- Reliable insulation system with long service life
- Robust bearing arrangement; larger grease space extends relubrication intervals by 1.5 times
- Low vibration (down to 1.2 mm/s on order) and low noise
- Large terminal box for easy cable connection
Applications
Mixers, crushers, coal mills and other machines in metallurgy, power plants, coal handling and chemical plants where flammable gas or vapour and combustible dust can occur together.
Model Code
Example YBFB450-4: YBFB = high-voltage motor with combined flameproof (gas) and dust protection, 450 = shaft height (mm), 4 = poles.
Explosion Protection Explained
Dust protection by enclosure ("t") keeps combustible dust out of the motor (IP6X) and limits the surface temperature below the ignition temperature of the dust layer. Zone 21 needs EPL Db (Ex tb), Zone 22 EPL Dc (Ex tc); group IIIC covers conductive dust.
Common Questions
What power range does the YBFB cover?
The YBFB covers 160 - 2240 kW.
Which voltages are available for the YBFB?
Rated voltage: 3 - 11 kV. Other voltages can be checked on request.
Which explosion protection does the YBFB have?
The marking is Ex db IIC T4 Gb and Ex tb IIIC T130 °C Db. Tell us the zone, gas group and temperature class of your site and we confirm the right version.
How is the YBFB cooled?
Cooling method: IC411 (TEFC).
Documents Supplied with the Motor
For each order we can provide the technical data sheet, outline drawing, routine test report and, for explosion-proof motors, 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
- YBXKK High-Voltage High-Efficiency Explosion-Proof Motor
- YB3 High Voltage Three-phase Asynchronous Motor
- YWKK / YWKS Non-Sparking HV Motor, Ex nA, 6/10 kV
How to Order
For a fast, accurate quotation please send: rated power (kW), voltage and frequency, number of poles or speed, Ex marking or hazardous zone, mounting type, quantity and destination port. For a replacement, a photo of the old motor nameplate is the quickest way to match it.
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 YBFB High-Voltage Gas and Dust Explosion-Proof Motor, 160-2240 kW
Send us your requirements. An engineer will reply with a model check and price within 24 hours.
