SECTION 260913 - ELECTRICAL POWER MONITORING AND …



This master should be used by designers working on Port of Portland construction projects and by designers working for PDX tenants (“Tenants”). Usage notes highlight a few specific editing choices, however the entire section should be evaluated and edited to fit specific project needs.

SECTION 260913 – ELECTRICAL POWER MONITORING AND CONTROL

GENERAL

1. DESCRIPTION

A. This section describes devices, components, software, and accessories for the power monitoring, analysis, and control system (PMAC).

2. RELATED WORK SPECIFIED ELSEWHERE

A. Section 260519, Low-Voltage Electrical Power Conductors

B. Section 260533, Raceway and Boxes for Electrical Systems

C. Section 261100, Substations

D. Section 271000, Structured Cabling

3. REFERENCES

A. ANSI/IEEE: American National Standards Institute/Institute of Electrical and Electronics Engineers

1. ANSI 50/51: Instantaneous/Time-Delay AC Over Current Relay

2. ANSI C12.20: Electricity Meters - 0.2 and 0.5 Accuracy Classes

B. CSA: Canadian Standards Associations

1. CSA 22.2: Information Technology Equipment - Safety - Part 1: General Requirements

C. FCC: Federal Communications Commission

1. FCC Part 15: Radio Frequency Devices

D. IEC: International Electrotechnical Commission

1. IEC 1000-2

2. IEC 1000-4

3. IEC 1000-5

E. NEC: National Electrical Code

F. UL: Underwriters Laboratories

1. UL 508: Standard for Industrial Control Equipment

4. SUBMITTALS

A. Submit technical data sheets, installation manuals, and/or user documentation manuals that describe product installation and operation, physical data, electrical characteristics, and connection requirements of the PMAC system.

B. Submit operation and maintenance manuals.

C. Submit copies of all data file and application software for reload in the event of a system crash or memory failure. Document all setup parameters required to communicate with existing system including Port-assigned IP addresses.

D. Submit final commissioning report.

5. QUALITY ASSURANCE

A. Ensure that the manufacturer calibrates the PMAC instrumentation at the factory using an instrument that is certified to have been calibrated using standards conforming to the National Institute of Standards and Technology (NIST) or the National Research Council of Canada (NRC).

6. SYSTEM DESCRIPTION

A. General:

1. The Port has an existing campus-wide power monitoring system into which the provided components must integrate. The power monitoring system is Schneider Electric Power Monitoring Expert (PME) running on a Microsoft Windows 2012 R2 platform.

2. The PMAC equipment shall integrate directly into the current Power Monitoring Expert (PME) software, which is Version 8.2.

B. PMAC Instrumentation:

1. The PMAC instrumentation shall include, but not be limited to, panel-mounted metering/monitoring devices, field replaceable I/O, communications devices, and ancillary equipment.

2. Provide appropriate potential transformers and current transformers to supply sensing signals for the PMAC instruments.

3. Installation of PMAC devices and ancillary equipment, and wiring connections to all electrical circuits, PMAC devices, and terminal strips for external devices, shall conform to all local and national electrical codes.

4. Provide shorting switches or test blocks for all meter CT inputs.

C. System Communication:

1. Each group of PMAC instruments shall have an ethernet connection to the existing PMAC system. Within each group, up to 31 PMAC instruments may be connected via a Modbus RS-485 daisy chain.

PRODUCTS

1. PMAC INSTRUMENTATION AND DEVICES

A. Manufacturers: As indicated below, or pre-bid approved equal. Other products proposed for substitution shall include all hardware and software required to provide the same functionality as the devices listed below.

Modify for outdoor locations if applicable.

B. Environment: All PMAC system components are subjected to the following indoor environmental conditions and shall be capable of withstanding the following conditions without damage or degrading of operating capability:

1. Temperature: 32ºF to 122ºF.

2. Humidity: 5 percent to 95 percent non-condensing.

Delete if not applicable.

C. Circuit Monitors:

1. Manufacturer: PowerLogic CM4000 or ION7650.

2. Minimum Requirements:

a. Provide true RMS metered values. Information provided by each circuit monitor shall include frequency, temperature, current, demand current, voltage, real power, reactive power, apparent power, demand power, predicted demand power, power factor, accumulated energy, accumulated reactive energy, total harmonic distortion (THD) of each current and voltage, and K-factor of each current.

b. The current and voltage signals shall be digitally sampled at a rate high enough to provide true RMS accuracy to the 255th harmonic (based on fundamental of 50/60 Hz).

c. Be rated for an operating temperature range of -25°C to 70°C.

d. The power meter shall be rated 5A nominal and 10A full scale. In addition, it shall be industrially and utility hardened to have an overload withstand rating of 15A continuous and 500A for 1 second.

e. Setup parameters required by the circuit monitors shall be stored in nonvolatile memory and retained in the event of a control power interruption.

f. Accept metering inputs of up to 600Vac direct connection or from industry standard instrument transformers (120Vac secondary PTs and 5 A secondary CTs). Connection to 480Y/277Vac circuits shall be possible without use of PTs.

1) PT primaries shall be rated for the nominal voltage.

2) CT primaries shall be rated for kAIC withstanding rating of the substation.

3) The circuit monitor’s energy readings shall meet the revenue accuracy requirements of ANSI C12.20 0.2 class metering.

g. Be capable of application in three-phase, three- or four-wire systems. A fourth CT input shall be available to measure neutral or ground current. If the fourth CT is not used, then a residual current shall be calculated by vectoral addition of the phase currents. In four-wire connections the circuit monitor shall utilize the circuit neutral common reference and not earth ground, to provide metering accuracy.

h. Be capable of measuring frequencies of 60 Hz.

i. Operate properly over a wide range of control power including 100-240Vac or 150Vdc be used.

Modify or delete if control power is provided from another source.

j. Control power to be separately provided by external UPS power or DC station batteries.

k. Power meter shall include a backlit, two-line LCD display.

l. Circuit monitor displays shall allow the user to select English, French, or Spanish language and select a date/time format. The circuit monitor display shall provide local access to the following metered quantities as well as the minimum and maximum value of each instantaneous quantity since the last min/max reset:

1) Current, per phase RMS, three-phase average and neutral (if applicable).

2) Voltage, phase-to-phase, phase-to-neutral, and three-phase average (phase-to-phase and phase-to-neutral).

3) Real power, per phase and three-phase total.

4) Reactive power, per phase and three-phase total.

5) Apparent power, per phase and three-phase total.

6) Power factor, per phase and three-phase total.

7) Frequency.

8) Demand current, per phase and three-phase average.

9) Demand real power, three-phase total.

10) Demand apparent power, three-phase total.

11) Accumulated energy (MWh and MVARh).

12) Total harmonic distortion (THD), current and voltage, per phase.

13) K-factor, current, per phase.

14) Reset of the following electrical parameters shall also be allowed from the circuit monitor display:

a) Peak demand current.

b) Peak demand power (kW) and peak demand apparent power (kVA).

c) Energy (MWh) and reactive energy (MVARh).

m. Allow for setup for system requirements from the circuit monitor display. Setup provisions shall include:

1) CT rating.

2) PT rating.

3) System type (three-phase, three-wire; three-phase, four-wire).

4) Demand interval (5-60 min.).

5) Watt-hours per pulse.

n. Provide a hardware security switch or password to protect all revenue related metering configuration from unauthorized/accidental changes.

o. Communicate via RS-232, RS-485, and Ethernet simultaneously.

p. Provide Modbus communications using Modbus TCP via an Ethernet network at 10/100Mbaud using UTP or fiber connections.

q. It shall be possible to field upgrade the firmware in the circuit monitor to enhance functionality. These firmware upgrades shall be done through either the display port or communication connection. Circuit monitor disassembly or changing of integrated circuit chips shall not be required. It shall not be necessary to de-energize the circuit or the equipment to upgrade the firmware.

r. Provide preconfigured, field-replaceable input/output (I/O) module(s) with one solid state output suitable for KYZ pulse initiation; four solid state status inputs; three (10A) mechanical output relays.

s. Time synchronization to 1 millisecond between monitors shall be accomplished via GPS synchronization.

t. Output Relay Control:

1) Operate either by user command sent over the communication link, or in response to user-defined alarm event.

2) Close in either a momentary or latched mode, as defined by the user.

3) Each output relay used in a momentary contact mode shall have an independent timer that can be set by the user.

4) Individual relay outputs shall be controllable by multiple alarms in a wired “OR” configuration.

Delete if not applicable.

D. Low Voltage Power Circuit Breaker Trip Units:

1. Manufacturer: MicroLogic Electronic Control Unit, Type P with LSIG:

2. Minimum Requirements:

a. Shall be compatible with circuit monitor listed above. Trip units alone or trip units in combination with meter modules can be used. Meter modules, if used, shall comply with applicable parts of this specification.

b. UL-listed as field-replaceable and upgradeable without special adjustments to the mechanism.

c. Be true RMS current sensing.

d. Provide local trip indication and capability to indicate local and remote reason for trip (e.g., overload, short circuit, or ground fault).

e. Be capable of communicating on existing network.

f. Provide real time metering. Metering functions include:

1) Current (per phase, neutral, ground fault, earth leakage, three-phase maximum, and fault). A loading capacity as a percent of the rating shall also be calculated.

2) Voltage (per phase and between phases). Voltage imbalance shall also be metered.

3) Power (three-phase total real, reactive, and apparent power).

4) Energy (apparent energy, real energy, and reactive energy).

5) Demand:

a) Current (actual and predicted).

b) Real power (actual, predicted, and peak).

c) Apparent power (actual, predicted, and peak).

d) Reactive power (actual, predicted, and peak).

6) Frequency.

g. Power and energy readings shall be accurate to 2.5 percent of reading.

h. Provide protective function and trip information including:

1) Circuit breaker frame size and rating.

2) Trip settings.

3) Cause of trip.

4) Device status (open, closed, or tripped).

5) Breaker position status (racked in, racked out, test position).

6) Number of mechanical operations.

i. Include an integral, graphical display to indicate the following:

1) Metered values (numeric).

2) Per-phase metered values by bar chart.

3) Trip settings.

j. Powered from within the circuit breaker without the need for an external power source.

Delete if not applicable.

E. Molded Case Circuit Breaker Electronic Trip Units:

1. Provide the following breaker/trip unit information to the PMAC network:

a. Breaker frame type (i.e., LE, ME, NE, PE, SE).

b. Breaker sensor rating.

c. Rating plug.

d. Protective settings.

2. Provide individual phase and ground ammeter information to the PMAC network.

3. Provide the following event tripping information to the PMAC network:

a. Date/time of last trip.

b. Type of last trip (overload, short circuit, ground fault).

c. Magnitude of phase and ground fault at time of last trip.

4. Provide the following maintenance information to the PMAC network:

a. Number of overload trips.

b. Number of short circuit trips.

c. Number of ground fault trips.

Delete if not applicable.

F. Transformer Temperature Monitor Unit

1. Manufacturer: Square D PowerLogic Model 98.

2. Minimum Requirements:

a. Provide for each dry-type and cast resin transformer furnished and installed.

b. Unit shall be UL listed.

c. Provides the following information to the PMAC network:

1) Coil temperatures (phases A, B, and C).

2) Hottest coil temperature.

3) Fan relay status.

4) Alarm relay status.

5) Emergency over-temperature relay status.

6) Setpoints for fans, alarm, and over-temperature relays.

Delete if not applicable.

G. Electronic Motor Protective Devices:

1. Each motor circuit noted on the drawings shall be able to model (learn) the thermal loading of the motor and cool down characteristics to maximize protection during continuous and load cycling operation.

2. Historical operating information such as running hours since last commissioning, number of starts/trips since last commissioning, number of overload trips/ground fault trips and similar data shall be displayed on the front of the device. Such information shall be available via data communications to programmable logic controllers and PC workstations throughout the PMAC network for control, alarming, data logging, and event recording.

3. Provide fault diagnosis data such as pre-trip motor and ground fault currents, unbalance ratio, and maximum stator RTD temperature.

4. Each motor circuit noted on the drawings shall be equipped with a circuit monitor to provide extensive power monitoring information to PMAC software.

5. Accept DC control power.

6. Unit shall be UL listed.

EXECUTION

1. INSTALLATION

A. A manufacturer-certified technician shall install, update, configure, calibrate, validate, and commission all new hardware to ensure it performs in accordance with the manufacturers’ specifications.

B. Power supply and communications wiring connections shall be performed in accordance with the guidelines in the product documentation.

C. Current and voltage sensing connections to PMAC instrumentation shall be made using appropriately rated CT shorting blocks and potential transformers (PTs).

D. Provide all raceways and cabling to interface the PMAC equipment to Port communications infrastructure.

1. For CAT6A data drops to PMAC devices, provide a 6" x 6" junction box with a data biscuit adjacent to or on the exterior of the electrical equipment in accordance with Section 271000. Provide a CAT6A patch cord from the data biscuit to the PMAC equipment.

2. STARTUP

A. Provide onsite PMAC support services for instrument configuration, device connectivity, startup, and integration into the PMAC system.

B. Configure PMAC devices to Port-specified IP addresses and coordinate device configuration with the Port. Obtain Port approval prior to connecting any PMAC instruments to the Port network.

C. The Port will modify the head-end of the PMAC software for changes such as adding and removing hardware.

D. Assist the Port during network integration to perform checks for network functionality. Assist the Port as needed to configure, test, and verify that the provided hardware meets all contractual requirements.

Modify testing as needed for project requirements such as commissioning, etc.

3. TESTING

A. Upon completion of the system’s installation, the manufacturer-approved representative shall test and verify the following:

1. The functional operation of each PMAC and breaker trip unit.

2. Transmission of all data from the PMAC instruments to existing Port software in coordination with the Port.

B. Demonstrate that each device provides the minimum features specified.

C. After device setup and network configuration is complete, provide onsite commissioning for each PMAC instrument to verify that each item is fully functional locally and across the network. Work with the Port to perform this final verification testing. Upon completion of testing, provide final documentation that indicates each item is fully functional and in compliance with the specifications. Note any discrepancies discovered during testing in the final report.

D. All tests may be witnessed by the Port. At least one week prior to the tests, notify the Port in writing when the equipment will be ready for Contractor testing and Port verification.

Minimum training should always be included. Modify as needed for project requirements such as commissioning, etc.

4. TRAINING

A. Provide onsite training for PMAC setup and operation with Contractor-furnished training material. Conduct a minimum of two training sessions.

5. ADJUSTING

A. Offer field services to assist onsite personnel with reconfiguration of the factory default for site-specific requirements.

END OF SECTION 260913

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