Client:

Forest Glenn Annex – Building 192, Silver Spring, MD
Government-managed facility under DoD oversight

Project Overview:

Emmaty, Inc. has been contracted to perform comprehensive testing of the 15kV substation at Building 192, Forest Glenn Annex, Silver Spring, MD. The project provides all necessary personnel, equipment, tools, materials, supervision, and safety compliance to ensure the substation’s performance meets manufacturer requirements, industry best practices, and Department of Defense (DoD) standards. Testing activities follow the International Electrical Testing Association (NETA) Maintenance Testing Specifications and UFC 3-550-07 standards.

Key Scope Highlights

• Medium Voltage Eaton Vacuum Breakers (15 total – 3 Main, 2 Tie, 10 Load):

  -Cleaning, inspection, lubrication.

  -Contact gap/wipe checks.

  -DLRO, insulation resistance, and vacuum integrity testing.

• Ground and Test Device:

  -Cleaning, inspection, lubrication.

  -Insulation resistance testing.

• Relays:

  -15 SEL 751 relays – mechanical inspections and functional protection testing.

  -2 SEL 387E relays – same as above.

• Grounding System:

  -Ground resistance testing.

• Battery Bank and Charger:

  -Check water levels, tighten connections, charge batteries for 1.5 hours.

• Control Power Transformer:

  -Inspection and testing per NETA and manufacturer guidance.

• Other Provisions:-Davis-Bacon Wage Scale recognized.-Work to occur Monday–Friday, 6am–4pm (excluding holidays).

  -Compliance with DoD, OSHA, and local codes.

Achievements:

• Integration of RFI clarifications (RFI #001, 26-APR-23) into the scope of work, ensuring alignment with client requirements.

• Commitment to safety excellence, including debris removal, controlled access, and strict adherence to OSHA standards.

• Maintaining DoD compliance while incorporating industry-standard NETA testing procedures, ensuring system reliability.

Challenges Addressed:

• Conducting specialized substation testing under strict DoD and NETA standards.

• Coordinating testing activities during normal operating hours without disrupting facility operations.

• Ensuring classified or proprietary materials are secured or removed from testing areas.

• Balancing complex testing tasks with compliance to federal wage, code, and safety regulations.

Keywords:

Substation Testing, 15kV, Eaton Vacuum Breakers, SEL Relays, Grounding, Battery Bank, Control Power Transformer, NETA Standards, UFC 3-550-07, DoD Compliance, OSHA, Forest Glenn Annex, Silver Spring MD, Emmaty Inc.