After extensive research and experiment, we install two theft-proof devices one is avoiding transformers being pushed over the electricity pole and the other is prevent removing the core from tank.
The theft-proof transformers developed by ZHTF are widely accepted by the different power bureaus and clients in north Zhejiang province. The power bureaus in Jiaxing District alone bought more than 10 S11 theft-proof transformers and none of them has been stolen. Jianshan Sea Reclamation Project has lost over 30 transformers with a value of around one million RMB in two months, then they installed 40 theft-proof transformers from us and all of them are still there.