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Meters for Digital Substation Applications
| Model No. : | DTAD178/DSAD178 |
|---|
Product description
Ambient Conditions
l Temperature range
Operating temperature:-10℃-45℃
Minimum ambient temperature: -25℃
Maximum ambient temperature: 60℃
Relative humidity: ≤95%(non-condensing)
Air pressure: 63.0kPa-106.0kPa
l Class 0.2S and Class 0.5S for Active
Class 2.0 for Reactive
l IEC62053-22(Class 0.2Sand 0.5S)
IEC62053-23(Class 2)
l IEC61850 9-1.IEC61850 9-2
l Compliance with DLMS/COSEM
Measurement Mode:
l Single Phase (3 Circuits)
l 3 Phase 3 Wire
l 3 Phase 4 Wire
Measured Energy Values
l 3 Elements, 4 Quadrants
l Import/Export KWh, Kvarh and KVah
l Per quadrant Wh, varh andVah
l Absolute Wh, varh andVAh
l Phase A, B, C & Total
Other Measured and Displayed Values
l W, var, KVA
l True RMS Voltage(3 Phase)
l True RMS Current(3 Phase)
l Power Factor
l Frequency
l Phase Angles
Voltage&Power Supply
l Nominal Voltage: 57.7V L-N(3P4W) 100V L-N(3P3W)
l Operating Limit: AC/DC 85-265 L-N
l FrequencyRange:45Hz-65Hz(National Deviation Involved)
l Option for Auxiliary Supply&UPS
Current
l CT Range: 0.3/1.2A,1.5/6A
l CT Meter: 20 times Imax for 0.5 seconds
l Burden:less than 0.5VA/phase
Load Survey/Load Profile
l Up to 2 Megabytes of Non-Volatile Memory
l Over 600 Days Storage(8 Channels, 15-Minute Intervals)
l Intervals Programmable from 1 to 60 Minutes
l Energy, InstantaneousReadingsas Channel Sources
l Ability to Store Average/Maximun/Minimum Values for Interval Duration for Individual Channels
Time of Use
l 4 Rates Plus Unified Rate
l Daily, Weekly, Monthly, Yearly&Special
l Up to 200 Programmable Special Days
l Up to 61 Previous Periods plus Period Totals
l Block or Rolling Maximum Demand
l Energy, Pulsing Inputs
l Time of Maximum Demand
Power Quality Indication
l Total Harmonic Distortion(THD)
l Sequence Components
l Waveform Download
Time Clock&Calendar
l Accuracy (internal) within 15 Seconds per Month at23℃
l Backup Time of 10 Years without Power(LithiumBattery)
l Internal Crystal Timing
LCD Display
l Graphical interfaces
l 6 integral with 2 decimal or 5 with 3(programmable)
l Programmable units, multipliers and leading zeros
l Up to 119 user definable screen displays
l Displays any available meter parameter
Security
l Multi-level Security(Username&Password including Encrypted Log-in)
l Up to 3 Independent Security Levels
l Up to 3 Individual Users
Tamper Detection& Alarms
l Provision for Sealing with Lead Seals
l Bypassing&Reverse Current
l Advanced Tamper Detection and Logging
l Pre-programmed Alarms for Meter Self-check
l Alarms Trigger LEDs, Relay Outputs or Communication Events
l Alarms are Stored in Event Logs
Communications
l RS485 Port(MODBUS, IEC62056-21 (IEC1107).DLMS/COSEM compliant, or other provided protocols)
l IR Port
l RJ45(10M/100M)
l Optical interface-SC(optical wavelength 1300nm,100M), IEEE802.3u 100Base-FX compliant
l UDP/IP GPRS/PPP Capable
Physical Dimensions
l Standard Version:265mm(L) × 170mm(W) × 75mm(D)
l Weight:Approximately1Kg
Software
l Wisdom Software Available for Meter Programming& Reading(Windows 7/Vista/XP/2000)
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