This paper deals with the Difference Queueing model for the power transmission system. The device called “Thyristor” which consists of three terminals modeled with queues. Gohain et al. (1979) have explained the difference equation technique which is applied for bulk service queues. Later on, Pochee(1998) has discussed about the performance of computer mirroring system. In this paper a comparison is made between the two queueing models M/M/1 and M/DTQ/1. Under high load conditions it is proved that M/DTQ/1 model, approximated the behaviour of the transmission system. Generation of pulses and utilization can be made moderate by using this queueing model. Based on the numerical calculations and graphical representations M/DTQ/1 can be considered as an appropriate model for transmission system.

Keywords: Difference queueing transmission model, pulse generator, inverter, rectifier, thyristor,.