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1、六月 27, 2018Project Name Electrical Power Monitoring Current per phase, Active Power (kW) per phase and total, Apparent Power (kVa) per phase and total, Reactive Power (kVAR) per phase and total, total Power factor, Frequency. 3.Energy Measurements a.Active Energy (kWh) import/export/net, Reactive en
2、ergy (kVARh) import/export/net, Peak power demand (kW), Current demand, Peak current demand, Neutral current, Reactive power (kVAR) peak demand, Apparent power (kVA) peak demand.C.The meter shall calculate the following information for any reading at 1-second intervals: 1.Sliding window demands for
3、any parameter with user-programmable length of demand period. 2.Number of sub-periods to match local utility billing method.D.The meter shall display “actual” readings on the display. No manual calculation shall be required to obtain actual readings. Multiply by 0.3 on the display shall not be allow
4、ed.E.The meter shall display all measured parameters on the front display. Simultaneous access to all parameters is available through the communications port.F.Standard logic functionality shall be available in the meter for setting up custom alarms that can be sent out via the digital output or thr
5、ough the communications port. G.The meters shall be field programmable as follows: 1.Basic parameters: Voltage input scale, voltage mode (Wye, Delta, single phase), current input scale, auxiliary input and output scales and communications setup parameters are programmable from the front panel. 2.All
6、 basic parameters described above may be programmed via the communications port using a portable or remotely located computer terminal. 3.Provisions must be made to ensure that programming through a computer can be secured by user ID and password. 4.Provisions must be made to ensure that programming
7、 through the front panel is secured by password.H.The meter shall include flash memory to store in non-volatile memory the following: 1.All setup data 2.Accumulated energy and demand data.2.4DESIGN Select either 2.4.A.1 or 2.4.A.2. For 2.4.A.2, select a, b, c, d, e, f or gA.The SENTRON PAC3100 meter
8、 shall be available in the following unit design configurations: 1.One-piece design that fits into an 96mmx96mm cutout. 2.Din Rail Mountable Version 3.Multi Meter Pack Enclosure (NEMA 1) with the following sizes: a.One meter b.Up to Two meters c.Up to Four meters d.Up to Six meters e.Up to Eight met
9、ers f.Up to Ten meters六月 27, 2018Project Name Electrical Power Monitoring & Control 26 09 13 31 00 16290 -4g.Up to Twelve meters PART 3 - EXECUTION3.1INSTALLATIONA.The Contractor shall furnish, install and terminate all communication conductors and associated conduits external to any factory supplie
10、d equipment.B.All of the communication conductor wiring and routing shall be per the manufacturers recommendations and as shown on the contract drawings.C.Additional connections to metering systems, where applicable, shall be done in the field by the manufacturers start-up service group the installi
11、ng contractor.3.2ADJUSTING AND CLEANINGA.The meters shall be adjusted so that accurate readings appear on the front of the meter and that the readings are within the meters accuracy range.B.Clean exposed surfaces using manufacturer recommended materials and methods.3.3TESTINGA.Perform factory and in
12、stallation tests in accordance with applicable NEC, NEMA and UL requirements.3.4WARRANTYA.Equipment manufacturer warrants that all goods supplied are free of non-conformities in workmanship and materials for one year from date of initial operation, but not more than eighteen months from date of shipment.END OF SECTION
