EPR3000-252

EPR Vishay ESTA High Voltage DC Capacitors RIPPLE The sum of the peak ripple voltage and the DC voltage should not exceed the rated voltage. Refer to graph fig. 1 for permissible peak-to-peak ripple voltage as a percentage of rated voltage for various frequencies. % RIPPLE 30 20 10 0 10 TYPE EPR The EPR range of capacitors are manufactured using a mixed dielectric material that consists of polyester /polypropylene film and capacitor tissue. They are impregnated and filled with a mineral oil. The container is a robust rectangular polypropylene case. The internal construction is designed to prevent movement when the capacitor is subjected to mechanical shock or vibration. An inert welding process ensures hermetic sealing. Standard terminations are M10 threaded inserts which eliminates the necessity for large voltage terminals. The case has an extremely low affinity for moisture and is resistant to virtually all electrical environments. Brackets can be welded on as required. Note • The impregnant used is a non toxic highly purifiedand inhibited 100 1000 10 000 FREQUENCY Hz Fig. 1 POWER FACTOR The power factor is variable, and is a function of temperature and frequency see fig. 2. Nominal value < 0.5 % at 20 °C at 20 °C 2% 1% 0% Power Factor vs. Temperature 1 kHz 50 Hz - 20 0 40 65 80 Fig. 2 mineral oil. DIELECTRIC RESISTANCE (Parallel resistance) is indicated by the graph of insulance (MΩ x μF) vs temperature fig. 3. The insulance (MΩ x μF) is nominally 10 000 s at + 20 °C. (Measurements taken after 1 minute with an applied voltage of 500 V) MΩ x MF 105 104 103 102 APPLICATIONS The EPR range is designed specifically for DC applications such as filters: • By-pass • Coupling • Rapid discharge • Pulse forming networks • Radar • Laser • X-ray equipment Insulance vs. Temperature Typical Values - 40 0 40 80 Fig. 3 TEMPERATURE RANGE Temperature range is - 40 °C to + 85 °C. Derating is required for operation at higher temperatures. LIFE EXPECTANCY EPR type capacitors are designed for a life exceptancy of 50 000 h at 65 °C. To achieve the same life expectancy at 85 °C derate to 60 % of rated voltage fig. 4. Hours 105 104 103 102 TEMPERATURE COEFFICIENT Capacitance will increase by 2 % per 100 °C temperature rise. CAPACITANCE RANGE 0.002 μF to 2 μF. The tolerance is ± 10 %. Other tolerance are available on request. Normal values measured at 1 kHz. 50 100 150 °C Rated Voltage Fig. 4 Document Number: 13016 Revision: 11-Aug-10 For technical questions, contact: esta@vishay.com www.vishay.com 1 EPR Vishay ESTA VOLTAGE RANGE 1000 VDC to 300 000 VDC High Voltage DC Capacitors TYPE DESCRIPTION PART NUMBER 15 kVDC EPR150-104 30 kVDC EPR300-504 50 kVDC EPR500-103 EPR500-504 75 kVDC EPR750-503 EPR750-104 6 CAP. μF 0.1 0.5 0.01 0.5 0.05 0.1 0.25 0.025 0.04 0.1 0.005 0.0025 A 75 130 70 175 80 115 175 80 120 125 90 70 B 75 220 90 235 110 130 190 90 200 175 90 95 C 142 185 245 280 365 365 365 420 285 445 385 555 TEST VOLTAGE Terminal/terminal (Vt/t) For DC rating < 20 kV Vt/t = 2.0 x rated voltage 60 s For DC rating > 20 kV Vt/t = 1.5 x rated voltage 60 s DIMENSIONS in millimeters EPR750-254 100 kVDC EPR1000-253 EPR1000-403 B A C EPR1000-104 200 kVDC EPR2000-502 300 kVDC EPR3000-252 www.vishay.com 2 For technical questions, contact: esta@vishay.com Document Number: 13016 Revision: 11-Aug-10 Legal Disclaimer Notice Vishay Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. 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No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 11-Mar-11 www.vishay.com 1