Flexible bag for oil expansion tank of transformer, oil expansion tank and transformer

The utility model relates to a flexible bag for an oil expansion tank of a transformer, the oil expansion tank comprising the flexible bag and the transformer comprising the oil expansion tank with the flexible bag. Furthermore, the present application relates to a method for producing the flexible bladder and to the use of the flexible bladder in an oil expansion tank of a transformer. In particular, the present application relates to a flexible bladder for an oil expansion tank of a transformer, comprising a first elastomer layer and a second elastomer layer, and a reinforcement layer comprising a fabric, the reinforcement layer being disposed between the first elastomer layer and the second elastomer layer; and the first elastomer layer and the second elastomer layer each include at least one elastomer selected from at least one of a vulcanized nitrile rubber, a hydrogen sulphide nitrile rubber, or a vulcanized epichlorohydrin rubber. 本申请涉及一种用于变压器的油膨胀箱的柔性囊、包括该柔性囊的油膨胀箱以及包括具有该柔性囊的油膨胀箱的变压器。此外，本申请涉及一种用于生产柔性囊的方