generator_reprogram_FINAL_SOW.pdf

STATEMENT OF WORK

FOR

PLC REPROGRAM FOR GENERATOR POWER PLAN BUILDING 336

GENERAL DESCRIPTION

The contractor shall provide a Work Plan and Perform as required by this Statement of Work to include: Provide equipment, investigations, replacement/provide control cable, input/output points for the Program Logic Control (PLC) to all devices including correct the software (Ladder diagram) to drive the Generators functional as the Statement of Work (SOW) requested below. The installation shall be accordance with the state, Federal codes and the industrial standards such as NEC, ANSI, NFPA, UFC 3-540-01…etc.

BACKGROUND

Lackland Air Base Training Annex Facility Building 336 has a system of generators with 4-each 750 KW 480/277 volt 3-phase 4 wire. The generators are responsible for supplying power in the event that commercial power is loss for critical (ITs) facilities in this compound. The main Switchyard is provided by the double end XFMRs. When normal sources utility power goes down, the generators start. When the normal power comes back (Hot) the controller (PLC) requests a manual reset to the normal operation “IN THE WINDOW SCREEN” at the Switchyard.

Whenever the generators are in use and commercial power is restored, the generators can be disengaged from the grid located on the screen in the switchyard. This can be completed by the following sequence: Activate the (INTINATE NORMA OPERATOR), (TRIP EMERGENCY BREAKER), (TRIP TIE BREAKER) and (CLOSE THE 52 BREAKERs). When complete the manual reset system the window will disappear on the screen.

Lackland Training Annex has (2) generators and logic adjustment is required in both the HMI and the PLC. This logic includes logical interlocks, Load Shedding conditions and control/indication on the different HMI screens.

SCOPE OF WORK

The scope of this project will revolve when the power lost at both utility main breaker#1 and breaker #2:

Currently, when the generators are in use and Commercial power is restored, HMI pop-ups require user input to confirm the following operations in sequence in order to restore “Normal Operation” of the system,

• Initiate Normal Operation

• Trip breaker Emergency

• Trip Tie breaker

• Close Utility Breaker #1

• Close Utility Breaker #2

This manual entry is to be replaced by Automatic control sequencing given that the Commercial power has been stable for at least 5 minutes.

NEW LOGIC CONTROL FOR THE GENERATORS PLAN

A. Only one side (Either side) of the utility down:

a). One side of power down:

• Main breaker of this source shall open and the tie breaker close.

• Generators still in standby mode (Not running) b). When the utility power restored:

• Tie breaker open

• Main breaker close

B. When both utilities power down:

a). Power down:

• Both utilities main breakers Trip (open)

• Tie breaker close

• Generator start 2:1, if the load is 70% or larger of generator rating

(around 525KW) the second generator shall be in run parallel, and one GEN drops out the bus after 10 Mins when the load lower than 60% of the generator rating (Around450KW).

• The Emergency breaker close.

b). Power restored both side:

• Trip (Open) breaker Emergency

• Trip (Open) Tie breaker

• Close Utility Main Breaker #1

• Close Utility Main Breaker #2

• Generators cooldown 10Min and shutdown

The current controls and monitoring system a total of 2 generators. All the conditions and monitoring that required the feedback of the generators and the “Load Shedding”, Now the generators need to be updated from a 4:2 ratio, to a 2:1 ratio.

PROJECT DELIVERABLES

A. Management

• Single point of contact for customer: 502CES-CEOFP, Mr. COLINS RICHARD

(Project Manager)

• Regular customer (Project Manager) updates and communication.

B. Programming

• Update control diagram PLC and HMI programming

C. Documentation: The following documentation will be provided in hard copy and electronic format:

• Operator and maintenance manual (2 copies) including:

- ECN to communicated change

- Control system description

- Digital copy of PLC program listings

D. Onsite service

• Implementation, debug and testing during regular hours for up to forty (40) hours.

• All site work to be done at site plan JBSA-LACK-TA Bldg. 336

• Operator and maintenance (In hand) training provide on JBSA-LACK for period of eight (8) Hours, during the regular business hours E. Clarifications

• System will be programmed using the most existing copies of the PLC and HMI program

• The solution includes the automatic engagement of the system’s Normal operation and the logical for 2 generators backup power.

F. WARRANTY

• Standard 1 year parts and labor warranty.

• Software warranty: The contractor warrants that software developed by his company specifically for building 336 application will perform in accordance with its specifications for a period of one hundred eighty (180) days from the date of acceptance by 502 CES-CEOFP

NORMAL DUTY HOURS

1. NORMAL DUTY HOURS:

1.1 Normal Working Hours: The Normal Working hours are from 7:30 a.m. to 4.30 p.m., Monday through Friday, excluding holidays. The lunch period for contractors requiring escorts is from 11.30 a.m. to 12:30 p.m. Access to work sites will be restricted to these hours and days, unless approved otherwise by the GOV REP. All units are evaluated on an individual basis.

1.2 Request to Work Non-Duty Hours: Submit all requests for permission to work during other than Normal Working Hours to the Contracting Officer, in writing, at least three

(3) working days before each period of work scheduled outside Normal Working Hours. Approval to work outside Normal Hours is at the 502 CES-CEO (Bldg 9959).

1.3 FEDERAL HOLIDAYS: The following federal holidays are observed by Lackland AFB:

New Year's Day January 1st.

Martin Luther King, Jr. Birthday 3rd Monday in January· President's Day 3rd Monday in February Memorial Day Last Monday in May Independence Day July 4th Labor Day 1st Monday in September Columbus·Day 2nd Monday in October Veterans Day November 11th Thanksgiving Day 4th Thursday in November Christmas Day December 25th

NOTE: Any of the above holidays falling on a Saturday will be observed on the preceding

Friday; holidays falling on a Sunday will be observed on the following Monday.

2. UTILITY OUTAGES:

2.1 Utility outages shall be defined as a stoppage in electric, gas, potable water, sewer, chilled or hot water, steam, telephone, Energy Monitoring and Control System (EMCS), or any other similar utility whether serving all or a part of a single facility or of several facilities. -

2.2 All utility outages shall be coordinated through the Bldg Management Office or the

GOV representative (REP). Notice of the necessity for an outage shall be provided by the Bldg Management Office, in writing, not less than 14 working days prior to the time of the required outage and written approval for the outage will be issued by the Bldg Management Office. All work shall be coordinated and arranged to ensure that the outage will be of minimum duration.

2.3 Once a utility outage is arranged and work begun, work shall continue until all utilities are restored to the affected facility or fac ilities.

2.4 In the event a scheduled utility outage is cancelled by the Government, notification will be given to the Contractor at least 24 hours in advance of the time for the outage to start. Rescheduling of a cancelled outage must be coordinated with written notification as described above.

3. INSPECTION AND ACCEPTANCE: Inspections and final acceptance will be made on each generator as completed by the contractor.

a. The contractor shall give the Government a minimum of three working days’ notice for all requested inspections. Inspections shall be staggered such that two inspections will not occur at the same time.

b. The contractor shall make sure that the work is ready for all inspections. The presence of an unreasonable number of deficiencies, as determined by the GOV representative, may cause the inspection to be rescheduled.