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Recent developments in legislation concerning electric and hybrid vehicles mean that there is now an urgent need to advance regenerative braking technologies.
In response to this Cressall has developed the EV resistor range.
These advanced resistors are light and compact, typically 10% of the size and 15% of the weight of an equivalent air cooled resistor.
EV resistors combine the normally incompatible qualities of high thermal conductivity with high electrical resistance by the use of patented materials and manufacturing processes.
The design fully encapsulates the resistor element, separating it from the coolant. With sealing to IP56 level the construction protects the resistor from harmful dirt and pollution.
They are robust and reliable, taking the surplus energy produced by the system turning it into heat which is absorbed into the cooling water, the efficient heat transfer means that this excess energy can potentially be used elsewhere in the vehicle either for power pack pre-heating or cabin heating.
All EV resistors are modular and are designed to fit together to match the braking power you need from 1kW to 100kW.
EVT ADVANCED VEHICLE RESISTOR
Our EVT resistor, with its 10kW power rating and extremely low pressure drop, provides the high reliability, mechanical simplicity and low weight demanded in passenger vehicles and is the most cost effective way to ensure any excess energy the vehicle produces is safely and efficiently recycled within the car itself.
This recovered energy can then be used for cabin heating rather than using a resistance only for heating, an extra drain on the vehicle’s batteries.
The need for three independent braking systems in hybrid/electric vehicles means that regenerative braking using the EVT is the greenest way for these vehicles to dissipate energy.
EV2 THE HEAVY DUTY POWER SOLUTION
The EV2 has a high power rating of 25kW per module making it an extremely competitive proposition for heavy braking applications where compact size is paramount.
The high power per module combined with modular design makes this cutting edge technology the optimum choice for motor braking AC drives used in:
- Large hybrid and all-electric vehicles
- Winches and cranes
- Cable laying vessels
- Propulsion drives on ships or oil rigs
- Dummy loads and discharge resistors for MV electrical systems
- Liquid heating
The EV2 has been extensively trialled and and successfully installed in real world applications.
