A712 SUBSTATION.pdf
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- Solicitation number
- 36C24526Q0229
About this file
This is a technical drawing and equipment specification document for a customer-owned electrical substation serving the United States Department of Veterans Administration V.A. Medical Center located at 10 N. Greene Street, Baltimore, MD 21201. The document provides detailed schematics and a material list for an indoor metal-clad switchgear installation operating at 13.8 kV with a 1200 ampere capacity and 500 MVA rating. The substation receives power from three separate feeders: Paca Street Substation (#13709), Greene Street Substation (#7835), and Paca Street Substation (#13708), with the system designed to support automatic transfer capability between normal and standby feeders.
The equipment specification includes 20 itemized components encompassing vacuum circuit breakers, current transformers in multiple ratios (1000:5A, 1200:5A, and 600:5A), potential transformers, surge arresters and suppressors, cable terminations, control power transformers, grounding points, and a ground sensor current transformer. Key operational features include electrical interlocking mechanisms that prevent paralleling of multiple supply feeders and between normal and standby feeders, with a key permissive switch available to Baltimore Gas & Electric Company personnel for controlled parallel operation. The system includes surge protection rated at 12 kV distribution class and 15 kV maximum line-to-line, with General Electric equipment specified throughout. The drawing ID is 712, Revision 5-02/02/11, with engineer S. Founds credited.
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Other files
| File | Type | Posted |
|---|---|---|
| 36C24526Q0229 0002.pdf | ||
| 36C24526Q0229 0002_1.docx | DOCX document | |
| 36C24526Q0229 0001.pdf | ||
| 36C24526Q0229 0001_1.docx | DOCX document | |
| 90481 - 512-23-109 - Baltimore Panel Study - Final Report - 20250121.pdf | ||
| VHA Directive1028 Facility Electrical Power Systems.pdf | ||
| WAGE DETERMINATION_Service Contract Act WD.pdf | ||
| 36C24526Q0229.pdf | ||
| 36C24526Q0229_1.docx | DOCX document |
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Text version
BALTIMORE GAS & ELECTRIC COMPANY
CUSTOMER OWNED SUBSTATION
UNITED STATES GOVERNMENT
VETERANS ADMINISTRATION
V.A. MEDICAL CENTER
10 N. GREENE STREET
BALTIMORE, MD 21201
CUSTOMER ID # 712
SHEET 2 of 3
ITEM # DESCRIPTION
1 1 - Vacuum Circuit Breaker, GE "VB1-13.8-500-2", 15 kV, 1200 A, 95 kV BIL, 18 kA Short Circuit, 37 kA Close & Latch, 3-Pole, 48 V DC Close & Trip.
2 3 - Current Transformers, 1000:5 A Single Ratio.
(OVERCURRENT TRIP & AUTOMATIC TRANSFER BLOCKING)
3 3 - Current Transformers, 1200:5 A Single Ratio. (BUS
DIFFERENTIAL TRIP)
4 3 - Current Transformers, 600:5 A Single Ratio.
5 2 - Potential Transformers, GE "JVM-5", 14400:120 V, & 4 - Fuses, GE
"EJ-1", 14.4 kV, 0.5 A.
6 1 - Control Power Transformer, 15 KVA, 1-Ph, 13300-120/240 V, & 2 -
Fuses, GE "EJ-1", 15 kV, 5 A, & 1 - Circuit Breaker, 230 V, 100 A, 2-Pole.
7 3 - Surge Arrresters, 12 kV Distribution Class. (COMPANY-OWNED) 8 3 - Cable Terminations. (COMPANY-OWNED) 9 3 - Current Transfomers, GE "JKM-110", 100:5 A.
(COMPANY METER)
10 3 - Potential Transformers, GE "JVM-5", 8400:120 V.
(COMPANY METER)
11 3 - Fuses, GE "EJ-1", 14.4 kV, 0.5 A.
(COMPANY METER)
12 3 - Grounding Points.
13 3 - Surge Suppressors, 15 kV Max L-L, GE OL 0144D2156.
14 3 - Cable Terminations.
15 1 - Ground Sensor Current Transformer, 50:5 A.
16 1 - Indoor GE POWER/VAC Metal-Clad Switchgear, 13.8 kV, 1200 A, 500
MVA, 3-PH, 95 kV BIL, GE S.O. 975451.
17 AUTOMATIC TRANSFER SYSTEM WILL TRANSFER STAND-BY FEEDER
TO EITHER BUS AFTER LOSS OF ASSOCIATED NORMAL FEEDER.
BALTIMORE GAS & ELECTRIC COMPANY
CUSTOMER OWNED SUBSTATION
UNITED STATES GOVERNMENT
VETERANS ADMINISTRATION
V.A. MEDICAL CENTER
10 N. GREENE STREET
BALTIMORE, MD 21201
CUSTOMER ID # 712
SHEET 3 of 3
18 THE TWO STAND-BY FEEDER BREAKERS ARE ELECTRICALLY
INTERLOCKED TO PREVENT PARALLELING THE THREE SUPPLY
FEEDERS.
19 NORMAL FEEDER BREAKER AND ASSOCIATED STAND-BY FEEDER
BREAKER ARE ELECTRICALLY INTERLOCKED TO PREVENT
PARALLELING NORMAL AND STAND-BY FEEDER.
20 KEY PERMISSIVE SWITCH AVAILABLE TO BG&E PERSONNEL FOR
PARALLELING EITHER NORMAL FEEDER WITH STAND-BY FEEDER.
File details come from the government source that posted it. Updated .