API Audio Accessories 7-22-10 Specifications download pdf (Page 55)

16621-5

a. Cable transition to VPI Dry Type; Standard (XF – HV on left)

b. Distribution class arrestor

c. Current limiting fuse

d. Spare fuses

e. One (1) cable size 500 kcmil Enter at top w/o loop to NEMA drill only

f. Spare fuse holder

g. Run back Bus

3. 500 kVA SST Transformer, Dry (VPI)

a. Primary 4160V

b. Secondary 480Y/277V

c. Copper windings

d. NEMA 1, 150 deg C rise

4. One (1) Spectra Bolt-on AV1 Swb (108A)

a. One service entrance with labeling

b. 3P,4W/480/277V/60Hz; 600A 42kAIC Fully Rated

c. Type 1 enclosure, front access only

d. One group mounted feeder section 35W

e. One Bus bracing 65000 AIC

f. One tapered copper Bus heat rated

g. Dry transformer transition at left end; full height side barriers

5. Service Disconnects

a. One (1) 500A 3 pole SGLA6 (600A Frame)

b. One padlock provision

c. One mechanical copper load lugs

6. Other

a. One fan control power

b. Lifting brackets

c. One Spectra Bolt-on (C/B feeders only) 18X

d. 1 neutral lugs

2.02 TRANSFER SWITCH AND 480V POWER DISTRIBUTION PANEL: The

Contractor will provide a suitable transfer switch in accordance with PIP ELSAP20.

The switch will transfer supply power source from Substation 6A (normal operation

mode) to the 350kW generator (emergency back-up mode). The transfer switch will

feed a 480V distribution panel. The distribution panel will provide 480V power to

MCC5A and the VFD MCC. The transfer switch will have a manual bypass feature.

2.03 350 kW DIESEL GENERATOR: The Contractor will provide a nominal 350kW

skid-mounted diesel generator in accordance with Specification 16201. The diesel

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API Audio Accessories 7-22-10 Specifications Page 55