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1.1 The solid state welders adopt Germany IXYS company IXFN38N100Q2 38A/1000V high-power
MOSFET and DSEI 2×61-12B 60A/1200V rapid recovery diode to compose series type invertible circuit.

1.2 The solid state H.F. welder adopts modularization design with more compact structure which makes
maintenance and high-power realization much easier.


1.3 It has particular technology of bridge-divided over-current protection that guarantees equipment safety.


1.4 It combines international advanced control method of same products, adopts advanced technologies like fixed angle phase-locking
control, upper frequency limit/lower frequency limit lock-lost protection and etc. With these technologies, the equipments run more stably, more
efficiently, more accurate and effective protections to the inductor short-circuit and open-circuit malfunction during pipe welding production.


1.5 Line-in end of solid state H.F. welder does not need step-up /step-down rectifier transformer, compared with vacuum tube welder and parallel type
welder; it has significant energy-saving effects (Under same welding condition, energy-saving ≥30% compared with vacuum tube welder).