... Golden Triangle company developed S13-M-RL, S11-M-RL series three-dimensional triangular core power ... A) ~ 11dB (A)> in comparison with GB S11 same capacity transformers, no-load loss decreased by 25%, ... the different performance indicators. > S7, S9, S11-M.RL allow deviation standard: The total loss of ... 10 transformer to save annual operating costs than using S11-M.RL-500/10 (GB) transformer:27084- ...