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High Voltage Explosion-Proof Motors
TETC Large High-Voltage Flameproof Motor, 185-4500 kW, Ex db / Ex tb
Wolong TETC large high-voltage flameproof motor with tube-type air-to-air cooler: frames H500 - 1000, 185 - 4500 kW, 3 - 11 kV, Ex db and Ex tb, IECEx, ATEX, CSA and UL. 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 TETC series (totally enclosed, tube cooled) is Wolong's large high-voltage flameproof motor platform. It combines a high power capacity with a very strong structure, low vibration and low noise, and is designed to GB, IEC, NEMA, BS, API and EN standards, so one platform serves Chinese, European and North American projects.
It is built for large compressors, pumps and fans in oil and gas, petrochemical, chemical, mining and power plants, with flameproof gas protection and dust protection in one motor where needed.
Key Specifications
| Frame size | H500 - 1000 |
|---|---|
| Rated power | 185 - 4500 kW (134 - 6200 hp) |
| Rated voltage | 3000 - 11,000 V |
| Speed range | 300 - 3600 r/min |
| Frequency | Fixed 50 / 60 Hz, or variable-frequency duty |
| Explosion protection | Ex db (gas), Ex tb (dust) |
| Cooling | IC511, IC516 |
| Protection | up to IP66 |
| Rotor | Die-cast aluminium or copper bar |
| Mounting | IM B3, IM B35, IM V1 |
| Efficiency | Grade 1 of GB 30254 or IE4 and above |
| Vibration / noise | 1.2 mm/s or lower; Lp 82 dB(A) or lower |
| Standards | GB, IEC, NEMA, BS, API, EN |
| Certification | IECEx, ATEX, CCC, MA, CSA, UL |
| Ambient | -20 to +40 °C standard, -60 to +60 °C to order; up to 1000 m standard, 1000 - 5000 m to order |
Design Features
- Long insulation life and a bearing system with high load capacity
- Larger grease space extends relubrication intervals by 1.5 times
- Flexible design for customer-specific requirements
- Whole-life service support from Wolong
The Wolong High-Voltage Platforms
TETC belongs to a family of high-voltage platforms that share components and design rules: TEFC (compact, totally enclosed fan cooled), TETC (large flameproof, tube cooled), TEAAC (air-to-air cooled box type, the base of the YAKK / YXKK series) and TEAWC (air-to-water cooled, for the highest outputs). Tell us the duty and the site, and we propose the platform that fits.
Applications
Compressors, pumps, fans, crushers and conveyors in oil and gas, petrochemical, chemical, coal and metal mining and power plants, in Zone 1 and Zone 2 gas areas and Zone 21 / 22 dust areas.
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 TETC cover?
The TETC covers 185 - 4500 kW (134 - 6200 hp).
Which voltages are available for the TETC?
Rated voltage: 3000 - 11,000 V. Other voltages can be checked on request.
Which explosion protection does the TETC have?
The marking is Ex db (gas), Ex tb (dust). Tell us the zone, gas group and temperature class of your site and we confirm the right version.
How is the TETC cooled?
Cooling method: IC511, IC516.
What is the degree of protection?
Standard protection is up to IP66.
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 TETC Large High-Voltage Flameproof Motor, 185-4500 kW, Ex db / Ex tb
Send us your requirements. An engineer will reply with a model check and price within 24 hours.
