we are reliable Our capacitors transport you to work on time

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1 we are reliable Our capacitors transport you to work on time SNUBBER APAITORS

2 SNUBBER APAITORS API apacitors offer a wide range of snubber capacitors for GTO, IGT and other thyristor devices. urrent, voltage, size, mass and terminations are matched to the customer s requirement and application, a few of which are listed below. ong life and high reliability is achieved using ultra low defect density, high isotactic, metallised polypropylene dielectric film incorporating an extended working temperature range and self-healing capability. High current carrying capability is achieved using low resistance foil electrodes. apacitors are impregnated with an environmentally safe oil then finished in an insulated polymer case or encapsulated in resin. Alternatively leak free dry solutions are available. Typical Applications * Used in Transportation, Marine, Automotive, Aerospace, Military, Medical, Renewable Energy, Power Distribution sectors and other industrial applications. Static/Non-static Drives (Propulsion, Traction, Elevators, Escalators, onveyors, able ars) Power Electronics (Welding, Furnaces, Induction Heating, asers, Scanners, Detectors) Power Transmission (onditioning, Detuned, FATS, STATOM, SV) Passenger/Freight Rail (Auxiliary ircuits: ighting, Heating, Ventilation, ommunication) Electric/ Hybrid Vehicles (KERS) Filters (Smoothing, Suppression, Harmonic) onverters (Inverters, Rectifiers, hoppers, ycloconverters) Features ong ife and High Reliability Self-Healing Technology Oil Filled or Dry Insulated ases UV Resistance, Halogen Free, ow Smoke and Flame Retardant Materials ustom Design apacitors Designed to meet detailed or brief specifications. Our technical sales representatives can work closely with your design team at concept stage or at the later stages of a project when a time critical design is needed. Alternatively like for-like replacements for older retro-fit designs can be offered. Subject to change without notice /KG09/03./1 Typical haracteristics * Rated apacitance (): 0.01 to µf Peak Repetitive Voltage (U N ): 0 to,000 V ontinuous RMS urrent ( ): to 0 A rms Frequency (f p ): 0 to 20,000 Hz Ambient Temperature ( amb ): - to + ase Materials: Insulated Termination: Threaded M-M Brass Related Standards: BS EN 1, BS EN * Applications and characteristics are for guidance only. Please contact us to discuss our full design capability. API apacitors imited eyden Works Station Road Great Yarmouth NR31 0HB UK +44 (0) info@api-capacitors.com

3 GTO PROTETION APAITORS GATOS RANGE GATOS V range U D = 0 V U N = 00 V U s = V U max = 5 V rms ( /W).34 Diameter (Ø) 5 GT GT GT GT GT GT GT GT GT1 GATOS 2000V range U D = 00 V U N = V U s = 2000 V U max = 0 V rms ( /W) Diameter (Ø) GT GT GT GT GT GT GT GT GT GT1 Subject to change without notice /KG09/03./1 API apacitors imited eyden Works Station Road Great Yarmouth NR31 0HB UK +44 (0) info@api-capacitors.com

4 GATOS 20V range U D = 00 V U N = 2000 V U s = 20 V U max = 0 V rms ( /W) GT0. GT GT GT25B GT GT GT GT GT GATOS - 20V range U D = 00 V U N = 20 V U s = 20 V U max = 0 V rms ( /W) Diameter (Ø) GT232. GT GT GT GT GT GT GT GT2334 Subject to change without notice /KG09/03./1 API apacitors imited eyden Works Station Road Great Yarmouth NR31 0HB UK +44 (0) info@api-capacitors.com

5 GATOS V range U D = 1 V U N = 20 V U s = 3300 V U max = 0 V rms ( /W) GT19A GT GT GT GT GT GT GT GT125 GATOS - 30V range U D = 2000 V U N = 20 V U s = 30 V U max = 10 V rms ( /W) GT GT GT GT GT GT GT GT3 Subject to change without notice /KG09/03./1 API apacitors imited eyden Works Station Road Great Yarmouth NR31 0HB UK +44 (0) info@api-capacitors.com

6 GATOS 00V range U D = 2200 V U N = 3200 V U s = 00 V U max = 10 V rms ( /W) GT GT GT GT GT GT GT GT1 1.1 GT GT3 GATOS V range U D = 20 V U N = 30 V U s = V U max = 00 V rms ( /W) GT GT GT4 5 5 GT GT5 0 GT GT GT GT1 Subject to change without notice /KG09/03./1 API apacitors imited eyden Works Station Road Great Yarmouth NR31 0HB UK +44 (0) info@api-capacitors.com

7 GATOS 00V range U D = 3300 V U N = V U s = 00 V U max = V rms ( /W) GT GT GT GT GT GT GT GT GATOS 200V range U D = 30 V U N = 50 V U s = 200 V U max = 2000 V rms ( /W) GT GT GT GT GT GT GT GT2593 Subject to change without notice /KG09/03./1 API apacitors imited eyden Works Station Road Great Yarmouth NR31 0HB UK +44 (0) info@api-capacitors.com

8 Introduction API apacitors GT protection capacitors are designed to meet the requirements of the traction industry and for static drive applications. They are built to extremely high standards, offering enhanced properties over other similar looking designs. Wound with a combination of metallised polypropylene film and extended foil electrodes, in conjunction with a stable, environmentally safe liquid impregnant, extremely long life and reliable self-healing capabilities are assured. The loss angle (tanδf) is extremely low (< at 1kHz) and the aluminium foil electrodes provide excellent thermal characteristics. Application API apacitors GT capacitors are designed for the severe duties of gate-commutated thyristors (GT s). They are also for tuning applications in the medium frequency range. Technology The advanced polypropylene dielectric system of these capacitors has been specially developed for high peak current and surge voltage applications. Features High peak current capability Very low inductance Very low losses Encapsulated in fire-resistant epoxy resin, the extremely robust mechanical design is suitable for the rigours of traction duty, especially vibration conditions and high ambient temperatures. mm axial connections are provided, which are securely bonded to the foil electrodes. HARATERISTIS The following parameters are applicable to the range of capacitors that appear on the following pages. As mentioned above, should a particular combination of capacitance value or voltage not be available or should there be a dimensional constraint, please contact us for a design suited to your particular needs. Subject to change without notice /KG09/03./1 apacitance value: µf to µf Tolerance: ± 5% Voltage rating (UD): 2200 V to 3300 V Peak repetitive voltage (UN): 3200 V to V Peak non-repetitive voltage (Us): 00 V to 00 V Maximum surge current: 20 A to 230 A oss angle (tanδf): at 1kHz Insulation resistance:,000 MΩ.µF (sec) urrent rating: Up to 0 Arms, depending on capacitance, voltage rating and thermal constraints. Operating temperature (θamb): - to + Storage temperature: - to + Tightening torque (connections): M x mm internal thread brass connection 3 m mm internal thread brass connection Nm NB These torque values are for use with brass screws. International standard: In accordance with BS EN 1:200 & BS EN :200 API apacitors imited eyden Works Station Road Great Yarmouth NR31 0HB UK +44 (0) info@api-capacitors.com

9 GT PROTETION APAITORS G RANGE GT 00V range U D = 2200 V U N = 3200 V U s = 00 V U max = 10 V rms ( /W) * G G G G G G G G2 GT V range U D = 20 V U N = 30 V U s = V U max = 00 V rms ( /W) G G G G G G G G2 GT 00V range U D = 3300 V U N = V U s = 00 V U max = V rms ( /W) G G G23 Subject to change without notice /KG09/03./ G24 G2 G2 G2 G2 *mm diameter capacitors have M x mm bosses, all others have mm API apacitors imited eyden Works Station Road Great Yarmouth NR31 0HB UK +44 (0) info@api-capacitors.com

10 Introduction Thyristor snubber capacitor technology, particularly for rectifier circuits where bi-directional voltages are experienced, have traditionally used film and foil construction in order to accommodate the ac conditions involved. Applications API apacitors thyristor snubber capacitors are suitable for a wide range of inverter and converter applications. They are particularly useful for thyristor controlled rectifier circuits such as dc power transmission and traction lineside equipment. Technology API apacitors has developed a range of metallised capacitors specifically for thyristor snubber applications which are also fully ac rated. The special dielectric system ensures that the self-healing mechanism cannot produce catastrophic failure. In addition, the design ensures that high peak current can be repetitively withstood without long term damage. These capacitors are normally housed in fire resistant epoxy resin: a proven, extremely robust encapsulation, suitable for the rigours of severe vibration and high ambient temperature conditions of traction duty. Alternatively, although not detailed here, the older style metal-cased units may also be accommodated. Please contact us for these designs, if required. The following parameters are applicable to the range of capacitors that follow this introductory section. Should there be a particular combination of capacitance value or voltage not given, or should there be a dimensional constraint, please contact us for a design suited to your particular needs. Subject to change without notice /KG09/03./1 apacitance value: 0.22 µf to µf Tolerance: ± 5% Voltage rating (UD): 1 V to 30 V Peak repetitive voltage (UN): 20 V to V Peak non-repetitive voltage (Us): 00 V to 00 V RMS voltage (Umax): Vrms to 20 Vrms oss angle (tanδf): < at 1kHz Insulation resistance:,000 MΩ-µF (sec) urrent rating: Up to 4 Arms, depending on capacitance, voltage rating and thermal constraints. Operating temperature (θamb): - to + Storage temperature: to + Tightening torque: M x mm internal thread brass connection 3 Nm mm internal thread brass connection Nm NB These torque values are for use with brass screws. International standard: In accordance with BS EN 1:200 & BS EN :2000 API apacitors imited eyden Works Station Road Great Yarmouth NR31 0HB UK +44 (0) info@api-capacitors.com

11 THYRISTOR SNUBBER APAITORS Z RANGE Z - 00V range U D = 1 V U N = 20 V U s = 00 V U max = V rms Thread (mm) ( /W) M x Z M x Z Z Z Z Z Z Z2 Z - 0V range U D = 20 V U N = V U s = 0 V U max = V rms Thread (mm) ( /W) M x Z M x Z Z Z Z Z Z Z Z21 Z - 00V range U D = 30 V U N = V U s = 00 V U max = 20 V rms Thread (mm) ( /W) M x Z25 Subject to change without notice /KG09/03./1 Subject to change without notice /KG09/03./ Z22 Z24 Z2 Z2 Z2 Z29 Z251 API apacitors imited eyden Works Station Road Great Yarmouth NR31 0HB UK +44 (0) info@api-capacitors.com