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1–6 EPM 6000 MULTI-FUNCTION POWER METERING SYSTEM – USER GUIDE
CHAPTER 1: OVERVIEW
1.4 Specifications
1.4.1 Inputs/Outputs
POWER SUPPLY
Range:..................................................................D2 Option: Universal, 90 to 265 V AC at 50/60Hz, or 100 to
370 V DC
D Option: 18 to 60 V DC
Power consumption:.....................................5 VA, 3.5 W
VOLTAGE INPUTS (MEASUREMENT CATEGORY III)
Range:..................................................................Universal, Auto-ranging up to 416 V AC L-N, 721 V AC L-L
Supported hookups:......................................3-element Wye, 2.5-element Wye, 2-element Delta,
4-wire Delta
Input impedance:...........................................1 MOhm/phase
Burden:................................................................0.0144 VA/phase at 120 Volts
Pickup voltage: ................................................10 V AC
Connection:.......................................................Screw terminal (see Voltage Connection on page 3–8)
Maximum input wire gauge: ....................AWG #12 / 2.5 mm
2
Fault withstand: ..............................................Meets IEEE C37.90.1
Reading:..............................................................Programmable full-scale to any PT ratio
CURRENT INPUTS
Class 10:..............................................................5 A nominal, 10 A maximum
Class 2: ................................................................1 A nominal, 2 A maximum
Burden:................................................................0.005 VA per phase maximum at 11 A
Pickup current:.................................................0.1% of nominal
Connections:.....................................................O or U lug (see CT Leads Terminated to Meter on page 3–
6);
Pass-through wire, 0.177" / 4.5 mm maximum diameter
(see Pass-Through Wire Electrical Connection on page
3–7);
Quick connect, 0.25" male tab
(see Quick Connect Electrical Connection on page 3–7)
Fault Withstand:..............................................100 A / 10 seconds, 300 A / 3 seconds, 500 A / 1 second
Reading:..............................................................Programmable full-scale to any CT ratio
1.4.2 Metering
MEASUREMENT METHODS
Voltage and current:.....................................true RMS
Power:..................................................................sampling at 400+ samples/cycle on all channels
measured; readings simultaneously
A/D conversion:...............................................6 simultaneous 24-bit analog-to-digital converters
UPDATE RATE
Watts, vars, and VA: ......................................100 ms (10 times per second)
All other parameters:....................................1 second