Salient Characteristics.pdf

SALIENT CHARACTERISTICS

Base Housing 75 KVA Transformers

I. GENERAL OVERVIEW.

628 CES Electrical Systems shop requires the purchase of the following transformers to replace outdated high voltage equipment and to keep as replacement items in case of an outage emergency.

II. SPECIFICATIONS.

At a minimum the equipment and accessories shall possess the following specifications:

- Specifications:

- 75 KVA Capacity

- Liquid filled (Non-PCB Insulating fluid)

- Pad mounted type

- Single phase, loop feed

- Frequency: 60 Hz

- 5 Position voltage tap changer (2 above, 2 below system voltage)

- 4 Position load break switch (Loop feed only, Loop feed with transformer, A primary with transformer, B primary with transformer)

- Primary Voltage Requirements:

- Primary voltage over current protection with bayonet fuse

- Primary voltage: 12470GRDY/7200

- Primary configuration: Standoff well bushing 200-amp load break elbow inserts dead front

- Secondary Voltage Requirements:

- Secondary voltage: 240/120V

- Secondary configuration: live front with threaded stud terminal paddles with three secondary connection points (X1, X2, X3)

- Enclosure Specifications:

- Lift-up lid housing

- Tamper resistant pad lockable

- Green finished enclosure color

III. APPLICATION.

These transformers will be installed on a concrete pad at ground level. The incoming underground feeder needs to fit through an opening at the bottom of the equipment. The secondary stud terminal paddles will feed residential buildings where single-phase voltage 240/120V is required.