Remote maintenance system for secondary equipment of transformer substation

The invention discloses a transformer substation secondary equipment remote maintenance system, which comprises a dispatching side safety area I, a dispatching side safety area II, a transformer substation safety area I and a transformer substation safety area II, and is characterized in that a remote operation and maintenance master station is deployed in the dispatching side safety area I, and a remote operation and maintenance terminal is deployed in the transformer substation safety area I; the situation awareness master station is deployed in a second scheduling side safety area; the remote operation and maintenance master station and the remote operation and maintenance terminal perform encryption communication through a scheduling data network, and the remote operation and maintenance terminal is used for receiving an operation and maintenance instruction and operation and maintenance data of operation and maintenance equipment and is also used for protocol proxy and equipment monitoring; and deploying