Penbro Kelnick specialises in the manufacturing of various resistors and load banks. Our products are manufactured from quality materials and meet
the highest standards and requirements.
Penbro Kelnick - Resistors
VSD Brake Resistor:
These resistors are mainly used to quickly stop or slow down electrical motors by draining the excess power and dissipating it as heat.
It ensures that motors brake much faster, it lowers the wear and tear of friction braking components and it keeps the voltages of the
motor within safe operating levels, all contributing to increase the overall life span of the motor.
We also manufacture a range of replacement parts for resistors used in locomotives.
We assemble an array of resistors in order to obtain power ratings of approximately 500 KW.
A wire wound resistor is essentially a coil and therefore has some inductance, which in some applications is not desirable.
These resistors are non-inductive by having half the winding in one direction and the other half in the other direction.
This ensures that the net inductance is nil.
The shape of these flat and high power resistors is ideal where space is limited and can comfortably dissipate 800 watts.
Our DC and AC load banks range in size from 1 KW for a table-top unit to 50 KW for a floor standing unit.
Ideally these load banks are used as dummy loads for testing apparatus and for the discharging of battery banks.
Up to 500 KW are mounted on a factory built trailer for mobility.
Current steps are obtained by means of switching circuit breakers and can be in steps of 1A to 100A.
The load banks are forced air cooled and supplied with either analogue or digital meters to display voltage and current.