How to Install the Transformer

1. Construction Prerequisites

(1) Drawings shall be reviewed, and detailed operating instructions shall be prepared and approved in accordance with the manufacturer’s technical data. (2) Construction quality for works related to box‑type transformer installation shall comply with current national codes for construction and acceptance of building works. (3) Positions of embedded parts and pre‑buried cable conduits shall satisfy design requirements, and all embedded parts shall be securely fixed.

2. Construction Preparation

2.1 Transformer Foundation Inspection

(1) Inspect the construction quality of the transformer foundation and fill in the inspection record sheet. The record shall be signed and confirmed by all relevant parties. Any defects found shall be reported and rectified promptly. (2) Carefully verify the horizontal and longitudinal axis dimensions of the transformer foundation as well as the positions of pre‑buried conduits, and cross‑check against drawing dimensions. Proceed with subsequent work only after all dimensions are confirmed correct.

2.2 Transformer Unpacking Inspection

(1) Upon arrival, the transformer shall be unpacked and inspected jointly by representatives of the owner, supervisor and manufacturer. (2) Measure and record the reading of the shock recorder before unloading; the impact value shall be less than 3G. (3) Inspect the transformer exterior for damage and confirm complete paint finish, and keep relevant records. (4) Check internal components of the transformer for displacement, contamination and other abnormalities.

3. Transformer Positioning & Installation

(1) Mount the channel‑steel foundation onto embedded parts. Perform levelling and alignment. Weld the channel‑steel foundation firmly to embedded parts. Remove welding slag from welds and apply anti‑corrosive paint.

(2) After hoisting the fan unit, hoist the transformer directly onto the foundation, then use jacks for levelling and alignment.

(3) Connect the transformer to the foundation following the fixing method (bolted connection or welding) specified by the manufacturer.

(4) In case of split delivery, install the enclosure after the transformer is positioned and oriented.

(5) Affix nameplates and clean the interior of the transformer cabinet.

(6) Implement finished‑product protection prior to commencing subsequent procedures.