with damping members for example of a hydraulic or pneumatic type this gives the suspension a certain resilience for vertical and horizontal relative movements as well as oscillating movements between thetransformer and the support structure which considerably reduces the stresses on the suspension the damping members attenuate the oscillationsof various kinds which the transformer is capable of performing relative tothe base and the support structure the yokes 76 77 and 78 are designed inthe same way as the yoke 75 because each of the transformers 1 2 is suspended from several insulator chains an increased stability in the suspension is obtained as well as increased safety and reliability in the case of rupture or damage to any of the chains because the insulator chains from which a transformer is suspended convergein the downward direction an efficient damping of horizontal relative movements between the transformer and the supporting beam 70 is obtained in connection with the resilient and movement damping members 751 752 the insulator chains from which the transformers are suspended may be conventional heavily dimensioned suspension insulator chains and the number of chains used to suspend each transformer may be greater than or less than the four shown in the drawing instead of insulator chains at least for indoor installation other members could.