High Voltage K75-40a Russian capacitor
High-Voltage Big Power capacitor. NEW!
The powerful High-Voltage K75-40 Russians capacitors they are made with use the modern material for internal insulator: POLYETHYLENE-TEREFTALAT.
• High impulse current rating up to 2000 A !
• Low self-inductance of < 30 nH
• High reliability and life expectancy
• Withstands heavy duty shock and vibration
• Non-polar dielectric - Dry, resin filled
Here is hoarfrost on capacitor. It have brought from-40C (-40F) strong Russian frost,hi.
But this capacitor can work from -60C to +120C (-76F to 248F)
K75-40a series designed in the USSR for impulse discharge capacitors use in special radar stations more 3GWatt in pulse . Now it is applied as the energy storage in pulsing lasers. These capacitors are not inductive rather the big inductance of oil caps. This current in the hundreds times more a current of the discharge old oil capacitors!
This quality is perfect also for use in the High Voltage Power Supply. It reduces pulsations is similar 180-200uF old oil capacitor! It is enough for use with anode current up to 3,0 amperes in one phase (witch 4,5kV to 9kW) or up to 15,0 amperes in 3 phase (with 4,5 kV to 45 kW) anode Power Supply. The best choice for pulsing loadings (CW and SSB big power high-linear amplifiers). These capacitors have no throws voltage and supplies of any front impulse of a anode current.
The Manufacturer parameters:
POLARITY: Any DC or AC
CAPACITY: 60 uF +/-10%
TEST Voltage: 8000 VDC
NOMINAL WORKING Voltage: 4000 VDC
MAX. WORKING Voltage (Constantly): 5000 VDC
Peak Working Voltage: 6000 VDC
Discharge current amplitude:up to 2000 Ampers !
Dissipation factor at f=50Hz: <0,005 !
Time constant: >2000 MOhm.uF
Insulation resistance: >15000 MOhm
Maintains mechanical actions:
Vibration 1-2000Hz witch acceleration: up to 10 G
Nonsingle shocks witch acceleration: up to 40 G
Single shocks witch acceleration: up to 500 G !
Temperature of work: -60* +120*C (-76 to 248 F)
Atmospheric pressure of work: 0,00012 to 294 000,0 Pa
Dimensions: 105x170x170 mm (4,1x6,7x6,7 in)
Weight: 5.0 kg (11,0 lb)
Operating Position -Any
Material of electrodes:Composite of metals witch a special film coats
Material of insulator between electrodes: polyethylene-tereftalate
We was made HI-POT test for two 60uF/4kV capacitors:
charged the capacitors up to 4000V with 50uA current, no problems and
we got 9.6uA and 10,2uA leak current at 4000V.Next step was to charge
it to 4500V, with 50uA current, no problems and we got 12.5uA and
13,5uA leak current at 4500V. Next step was to charge
it to 5000V, with 50uA current, no problems and we got 20.5uA and 21,5uA leak current at 5000V.
Absolutely safe for 5000VDc constantly without any limited!
Buyer agrees that buyer understands HV Caps are dangerous
and that buyer states buyer is knowledgable in their safe use.
By bidding, buyer agrees to assume all liability for use of this item.