SUBMERSIBLE

SUBMERSIBLE TYPE

DESCRIPTION

Submersible type IMEM distribution transformers are designed to be installed in pits or vaults that from time to time can be flooded. For this reason, they must be dead front and with accessories to connect to underground distribution systems. Submersible type distribution transformers are commonly used in hospitals, historical sites or wherever the aesthetics and space are essential.

STRUCTURE

Submersible type transformers are self-cooled in insulating liquid and are classified as ONAN (Oil Natural Air Natural) They are designed to run outdoors inside a pit where there is a high level of moisture, in saline environments, and pollution caused by lead, ozone, or hydrocarbons.

They are manufactured to run at a 1,000 or 23000 m a. s. l., with a 55°C over-rising temperature, at an ambient temperature in the vault that does not exceed 50°C, and an average temperature in a 24 hour period, that does not exceed 40°C, according to the client’s specifications.

They are constructed with silicon steel grain oriented armored cores and high magnetic permeability, manufactured in unicore machines to obtain fewer vacuum losses. HV/UV coils are manufactured with low resistance electrolytic copper and/or aluminum conductors in several insulation types according to your needs.

The tanks are built with carbon steel or stainless-steel sheets, as required, and subjected to a white metal shot blasting cleaning process, an application of a rich in zinc primer, anti-rust epoxy, and a high resistance polyurethane finish. The insulating liquid is naphthenic type polychlorinated biphenyl free (NMX-J-123-ANCE).

INSTALLATION

Submersible type IMEM distribution transformers are manufactured according to the following: One-phase pole-mounted transformers for radial power supply systems connection or ring power supply systems connection. From 25 kVA to 167 kVA Three-phase pole-mounted transformers for radial power supply systems connection or ring power supply systems connection. From 25 kVA to 167 kVA

PARTS AND ACCESSORIES

Levering accessories (Three-phase only)
Sliding accessories
Lifting accessories
Tank connection to ground
Under voltage connection to ground
Under voltage bridge to ground
Armoring wires connectors for ground connection
(one-phase only)
Armoring wires rod for ground connection
(three-phase only)
Spring type under Voltage bushings
Pit type medium voltage bushings
Elbow connectors supports
Isolators
Insulation liquid level gauge (225 kVA and upper
three-phase only)
Dial thermometer (225 kVA and upper three-phase only)
Pressure gauge supply (225 kVA and upper
three-phase only)
Drain valve and sample valve
Top connection for press filter and leakage test
Overpressure relief valve
Branch switch
Drop-out fuse
Partial power discharge fuse

LABORATORY

We have a test laboratory that complies with the ISO-17025, where we check all the manufactured equipment, along with non standardized characteristics research and product verification.