Convert your vehicle to a battery Electric with Netgain Technologies - Impulse, Warp and Transwarp brushed DC - series wound EV Motors
All motors are designed to last, even when exposed to the most demanding duty cycles.
Warp motors offer:
➢ A Broad Range of Sizes – torque, voltage, rotation and shaft configuration choices are available. Our motor selection software can help in your design choices.
➢ High Efficiency Design - motors use only low-loss laminations and welded or fused commutator connections for peak motor performance. This superior methodology lowers heat build-up and yields longer operating time per battery charge.
➢ Durable Construction – Both the armature and the field assembly are resin varnish treated to lock in mechanical integrity and to provide permanent environmental protection.
➢ Performance Tested – Quality is controlled throughout the manufacturing process and performance is confirmed with 100% load testing before shipment.
Motor Prices start at approx $2179.00 + GST, shipping/handling,Insurance
Contact :Leith Aitchison for technical specifications, pricing and delivery times .
Mobile : +61 420 672 631
domedimensions@yahoo.com.au
NetGain Technologies, LLC
www.go-ev.com
NetGain Technologies, LLC was formed in 1998 by a group of professionals with strong and diverse backgrounds in business, finance, technology, research, development, marketing, and automotive performance. Our primary activity is to seek out innovators and leaders in their field and work with them to conduct research and development on technologies that are or will be used in alternatively fueled vehicles.
NetGain is also in the business of hybrid electric vehicle and electric vehicle design. To this end NetGain Technologies, LLC has been working with researchers to explore the potential of producing a new type of battery especially suited to electric vehicles and hybrids.
Our motors are produced by Warfield Electric Co. in Frankfort, Illinois USA. Warfield is the nation's largest rebuilder of series wound DC motors. Since they already knew what the failure points were from their experience repairing "all the other motors" -- it was a simple matter for them to help us design motors that were intended for the unusual stresses encountered in electric vehicles.
EVers are always looking for information that is not normally provided by motor manufacturers. Industry wide, motors are rated by operating temperature. All our Class "H" motors are rated at 140 degrees Celsius above ambient temperature. Class "H" insulation is rated at 180 degrees Celsius.
Our motors are equipped with an internal "Temperature Snap Switch." This is a normally closed temperature switch, set at 120 degrees C., which will open if the motor starts to overheat. This switch can be connected to a diagnostic system or an emergency shut off switch ... or not connected to anything.
NOTE: The hottest point on the exterior of a motor should never exceed 180 degrees Celsius, although our motors are stress tested to 205 degrees C. The maximum brush temperature should not exceed 205 degrees Celsius.
For vehicles intended solely for use on the drag strip, motor cooling is not required. The motors do not run long enough to build any substantial amounts of heat. HOWEVER -- fans are still required. When a series wound, brushed DC motor runs -- it grinds down the brushes. As a result, a cloud of carbon dust is circulated inside the motor. If this dust accumulates, it is possible to have an arc flash over inside the motor -- causing all sorts of damage. The carbon dust must be blown out of the motor.
Some clients have asked for motor ratings while cooling the motors. We do not have a horse power rating for a motor with forced air cooling. There are some obvious limitations to forced air testing, such as ambient temperature, fan type, fan efficiency, motor intake & exhaust ports and CFM (cubic feet of air per minute moved by the fan)
We have done some testing with forced air ... and cooling with exotic gases, such as CO2, helium and argon. What we have found is interesting. For Evers, ambient temperature is the key. As a motor gets hot, the HP is lower than the initial HP generated by a cool motor. By blowing enough air to maintain, or approximate, ambient temperature ... the motor's one hour HP rating will increase to near its initial HP output. This is not something normally tested or rated by motor manufacturers ... but typically you can expect a 10 - 15 % increase in HP, with 20% possible on some motor designs.
One of the problems we have in determining motor ratings (for EVers) is finding a dynamometer capable of handling the unusual voltages, current and torque developed in testing EV motors. So far, we have been unable to locate such a dyno ... but we are still looking and have recently developed some good prospects. To date, most of the high voltage ratings seen on our web site have been calculated using standard industry formulas and practices.
Additionally, all of our motors have been dyno tested on the Warfield Electric dynamometer. This dyno is capable of 72 Volts and 450 Amps. We supply graphs that approximate the actual dynamometer points accumulated for each of our motors.
Warp motors do not have interpoles. The interior size limitations of the motor case prevent interpoles from fitting inside the motor. That is why no motor (of these HP ratings) is available with interpoles in a 9" or smaller configuration. Our 11", and 13" motors, and potentially larger motors, may be equipped with interpoles. The exact configuration of the interpoles may be specified. Interpoles that are incorrectly engineered may cause substanital performance problems. There are additional costs associated with the addition of interpoles. We have also strived to improve the performance of our motors by incorporating series/parallel field switching as a standard item on our 13" motors. We intend to consider this an option on our other motors as well.
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