The single phase padmounted distribution transformer is
designed to provide electrical service on underground distribution
systems. The tra n s fo rmer is designed for outdoor
m o u n t i n g on a pad. Primary and secondary cables enter the
t ra n s fo rmer compartment from below, through openings in
the pad. All exposed live parts are completely enclosed in
tamper-resistant cabinets with provisions for padlocking.
The recommendations, instructions and procedures here contained will give you a guide
to accomplish labors of installation or assembly and implementation or energizing of a
power transformer. This information is not the only one requirement to the transformer
operates satisfactorily. It is required to count firstly on qualified personnel and tools and
equipment designed for this purpose.
These instructions apply to liquid filled secondary unit
substation transformers manufactured by the ABB
Transformer Facility at Jefferson City, Missouri.
Secondary Unit Substations are typically composed of three (3) major sections: the high or medium voltage section; transformer section; and low voltage section.
These sections can be close coupled whereby the sections are bolted directly together to form a single line of electrical equipment or the sections can be separated by distance and
The transformer requires less care compared with other electrical equipment. The
degree of maintenance and necessary inspection for its operation depends on its
capacity, on the importance within electrical system, the place of installation within the
system, on the weather conditions, and the general operating conditions.
ABB is committed to developing all its products to meet ever-more-demanding
environmental and effi ciency requirements.
Our ultra-effi cient dry-type transformers have been greatly improved in terms of effi ciency, specifi cally tailored to the particular application identifi ed,for customers with a commitment to environmental protection and costawareness.
These instructions apply to liquid filled secondary unit
substation transformers manufactured by the ABB
Transformer Facility at Jefferson City, Missouri.
Secondary Unit Substations are typically composed of three (3) major sections: the high or medium voltage section; transformer section; and low voltage section.
These sections can be close coupled whereby the sections are bolted directly together to form a single line of electrical equipment or the sections can be separated by distance and
The three phase padmounted distri bution tra n s fo rmer is
designed to provide electrical service on underground distribu
t i o n systems. The transformer is designed for outdoor
mounting on a pad. Primary and secondary cables enter the
transformer compartment from below, through openings in the
p a d . All exposed live parts are completely enclosed in
tamper-resistant cabinets with provisions for padlocking.
