SPT-100 is a Hall-effect ion thruster, part of the SPT-family of thrusters. SPT stands for Stationary Plasma Thruster. It creates a stream of electrically charged xenon ions accelerated by an electric field and confined by a magnetic field.
The thruster is manufactured by Russian OKB Fakel, and was first launched onboard the Gals-1 satellite in 1994. In 2003, Fakel debuted a second generation of the thruster, called SPT-100B, and in 2011, it presented further upgrades in SPT-100M prototypes. As of 2011, SPT-100 thrusters were used in 18 Russian and 14 foreign spacecraft, including IPSTAR-II, Telstar-8, and Ekspress A and AM constellations.
Specifications ParameterSPT-100SPT-100BSPT-100MSPT-100DPower (W)1350135013502500Thrust (mN)808390.2112Thrust-to-power level (mN/kW)59.2661.4866.8144.80Specific impulse (s)1,6001,6001,7342,200Efficiency (%)47485748Voltage (V) 300300300600Discharge current (A)4.54.54.54.17Mass (kg)44.7Reference:
See also PPS-1350 SPT-140
References
External links Stationary plasma thrusters(PDF)