Section 3—Receiving, Handling and Storing

Receiving

Upon receipt, remove the packaging.
- Immediately inspect the new transformer for shipping damage.
- Refer to Section 7—Replacement Parts and Accessories for replacement parts, accessories (e.g., touch-up paint) and spare parts for minor damage.
Check the packing list against the product nameplate.
- Verify that the order and shipment align with each other and that the shipment is complete.
  
  NOTE: Follow Schneider Electric Conditions of Sale for shortages and errors.
Repackage the transformers for storage if they are not to be installed immediately.
- Cover all ventilation openings to protect against exposure to moisture, dust and contaminants.
- Leave packing materials intact until the transformers are ready to install.
Refer to Conditions of Sale for details regarding claims for equipment shortages and other errors. Contact your local Schneider Electric distributor for additional assistance.

Handling

Handle transformers carefully to avoid damage. Avoid subjecting the transformers to impact, jolting, jarring, and rough handling. Ensure that transformers are transported in the upright position. When possible, transport transformers to the installation site while still mounted on their shipping pallets.

Verify that the weight of the transformer does not exceed the rated capacity of the handling equipment to be used.

Handling with Platform Dollies or Lifts, Pallet Jacks, or Fork Trucks

Extreme care should be exercised when moving transformers from the bottom. See Handling with a Fork Truck: Blades/Forks Placed under the Entire Transformer (Shipping Pallet Attached).

Use care to distribute the weight when transporting transformers using platform dollies, platform lifts, pallet jacks, or fork trucks.
Use hand trucks or forklifts only when the blades or forks are long enough to pass completely under the transformer enclosure or shipping pallet. Wider fork separation is preferred to distribute the weight of the unit evenly for increased stability.

Handling with a Fork Truck: Blades/Forks Placed under the Entire Transformer (Shipping Pallet Attached)

Handling with Cranes: Using Cables, Chains, or Straps

When lifting the transformer from above, the use of spreader bars with cables or chains is permissible. This will help avoid damage to the enclosure or equipment.

The enclosure can be removed to allow the units to be transported through small openings, lifting as the same means as shown in Two-Point Lift: Cable Pull Angles (Not Less than 60 Degrees from Horizontal), Two-Point Lift: Handling with Chains, Hooks, and Cross Corners (Not Less than 60 Degrees from Horizontal), Four-Point Lift: Handling with Chains, Hooks, and Four Corners (Not Less than 60 Degrees from Horizontal), and Four-Point Lift: Handling with a Strap and Hooks (Not Less than 60 Degrees from Horizontal). Refer to Exploded Assembly for EX75T3H Energy Efficient Transformer with Enclosure Style 20K Front and Exploded Assembly for EX300T3H Energy Efficient Transformer with Enclosure Style 25J Front in Section 7—Replacement Parts and Accessories for exploded views of parts and accessories.

Ensure that the lifting cable pull angles are not less than 60 degrees from horizontal. See Two-Point Lift: Cable Pull Angles (Not Less than 60 Degrees from Horizontal).

Two-Point Lift: Cable Pull Angles (Not Less than 60 Degrees from Horizontal)

Refer to Two-Point Lift: Handling with Chains, Hooks and Cross Corners (Not Less than 60 Degrees from Horizontal), Four-Point Lift: Handling with Chains, Hooks and Four Corners (Not Less than 60 Degrees from Horizontal), and Four-Point Lift: Handling with a Strap and Hooks (Not Less than 60 Degrees from Horizontal) for other permissible lifting and handling options.

Two-Point Lift: Handling with Chains, Hooks, and Cross Corners (Not Less than 60 Degrees from Horizontal)

Two-point lift with chains and hooks: Top core bracket, right side and front hole. Rear bracket, left side and rear hole.

Four-Point Lift: Handling with Chains, Hooks, and Four Corners (Not Less than 60 Degrees from Horizontal)

Four-point lift: The hooks are in the front and back holes of the core bracket (4), with chains lifting on the hooks.

Four-Point Lift: Handling with a Strap and Hooks (Not Less than 60 Degrees from Horizontal)

Four-point lift: The straps are under the core brackets, with the front-to-back straps coming together at the top with a hook. Use straps with protective cover, core clamps edges are sharp.

Handling Enclosure Styles D, H and K after Removal of the Shipping Pallet

Hand trucks and forklifts can access and move the transformer via the front and rear openings below the bottom of the base. See Handling with a Pallet Jack: Enclosure Styles D, E, H and K after Removing the Shipping Pallet. Follow the same handling instructions (Handling) as if the pallet is still attached.

Handling with a Pallet Jack: Enclosure Styles D, E, H and K after Removing the Shipping Pallet

Storing

Leave the packing material that encloses the transformer in place until the unit is ready for its final placement and wiring. This will help to protect the transformer enclosure and internal parts from dirt, water, moisture contamination and physical damage during storage. Provide extra measures to protect the transformer when the original packing material cannot be retained.

Store transformers indoors in a clean, dry, and heated building with uniform temperatures and adequate air circulation. If necessary, install electric heating to maintain a uniform temperature above the ambient temperature to prevent condensation.

Protect transformers from weather and contamination when it is not possible to store the transformers indoors.

Before energizing the transformer, complete the steps in Pre-commissioning/Pre-energizing Checks and Testing along with the following steps:

Test the insulation resistance if storage in a controlled environment was not feasible. Refer to Insulation Resistance.
Dry the unit if test levels are unacceptable:
1. Use two heaters or lamps per coil at 120 V, 50 W to apply external heat to the coils.
2. Mount the heater or lamp directly below the coils located at the front and rear of the core.

NOTE: Outdoor transformers are not weather resistant until they are properly and completely installed and energized. Treat outdoor transformers in exactly the same manner as indoor transformers until after they are installed.