HISTORY:
This component has been removed from a very nice (fully functioning) KEPCO BOP 50-8M!
Why "part out" the KEPCO? I have decided to make this equipment an "organ donor" because I have had it advertised elsewhere as a fully functional unit but no interest, too "high brow" I guess.
Additionally it is VERY HEAVY (this is a FULL rack size unit, approaching 40Kg when it was packed) and I noticed light damage to the steel casing as well (scrape marks due to moving it around over the years).
Originally we acquired this equipment from an international R & D laboratory and used it ourselves for various test and research tasks, although the BOP range of Bi-polar power supplies can undertake many other tasks.
In brief, the KEPCO BOP 50-8M is a Bi-polar power supply providing 0-50V dual supplies at up to 8A current each.
But to be more specific it is much more than a Bi-polar power supply, the unit contains two high speed, high power Op amps and NO capacitors on the output (which can effect the frequency response/speed). The Op amps can operate up to 24Khz (resistive loads) with Ultra low noise, Ultra low ripple and they are MIL spec compliant.
The power Op amps are four quadrant, bi-polar operation with full control of the voltage and current on each channel via the front panel controls OR remote control/programming.
This KEPCO BOP 50-8M is not a "spring chicken", date of manufacture was in the late 1990's - not used very often but when it was called upon, it never missed a beat.
KEPCO designs and manufactures some wonderful professional laboratory and industrial power test equipment, take a look HERE for their latest offerings
The company began around the mid 1940's in Queens, New York along with two other very well known power supply design/manufacturing companies Sorenson and Lambda. Of the three companies, only KEPCO remains in Queens and remains an independent company.
So, that is the background of this component and now let's get down to describe the component I have carefully extracted from the equipment, and where feasible/worthwhile, tested to ensure full functionality.
TEPRO (USA) - Power Resistor
Wirewound
Aluminium heatsink casing
TMK Series
KEPCO part # 115-2854
DC Resistance: 0.0625Ω
Dielectric strength 2000V AC
50W dissipation
1% tolerance
Silicon protected internal windings
Axial double leads each end (connected together)
DIMENSIONS:
15mm x 15mm x 50mm Length
Leads are 2mm diameter
Weight: 30g
Outer housing is aluminium (gold anodised with part ID printed on the top)
CONDITION:
USED
Clean
Obviously the leads at each end have been bent during manufacture into an open hook, I decided to leave them the same way
NO damage to the casing or signs of stress
Leads are secure (no movement)
Carefully examined the casing - no problems at all
TESTING:
I like to always test used components where possible. All I could do with this resistor is test the DC resistance between each leg and through the resistor but quite frankly, I cannot accurately read such low resistance values. I know the resistor is SUB 0.1 Ohm and that is my measuring limit at the moment. I have to assume the value remains very close to 0.0625 Ohm - extremely low resistance.
