| Parameter |
| Type |
Name |
Statistics |
| Input |
Three Phases and Neutral of a 3P4W system / Three Phases of a 3P3W system |
| Voltage |
Direct Voltage Input: Up to 500V L-L, Up to 300V L-N
PT Ratio: Site Selectable
Burden: 0.5VA |
| Current |
Secondary Current Input:5A or 1A (Site Selectable)
CT Ratio: Site Selectable
Range of Reading:5 - 5000A
Burden: < 1.0VA
Overload: 5A CT = 6A RMS Continuous
1A CT = 1.2A RMS Continuous |
| Power Supply |
Auxiliary Supply: 90 - 480 VAC, 50-60 Hz. |
| Output |
Relay |
Four. Individually Field Programmable.
Switching Voltage: Max. 230 VAC
Switching Power: Max. 1000W
Expected Mechanical Life: >10 x 106 switching operations
Expected Electrical Life : >4 x 106 switching operations
@(Load = 200VA, Coscp = 0.5) |
| Measurment |
True RMS
Basic
Parameters |
Voltage
(Volts L-N & L-L) |
Vl-n Accuracy: 0.5% of Reading
Vl-l Accuracy : 1.0% of Reading |
Current
(Amps IR, IY, IB) |
Accuracy: 0.25% of Reading |
| Line Frequency |
45 to 55 Hz, Accuracy: 0.3% of Reading |
| Power |
Active
Power (P) |
Accuracy: 0.5% of Reading
(For IPFI>0.5) |
Reactive
Power (Q) |
Accuracy: 1.5% of Reading
(Between 0.5 Lag to 0.8 Lead) |
Apparent
Power (S) |
Accuracy: 0.5% of Reading |
| Power Factor |
For Individual phases and System.
Accuracy: 1.0% of Reading (IPFI>0.5)
Range of Reading: 0.05 to 1.00 Lag/Lead |
| Energy |
Total Active
Energy (KWh) |
Range of Reading: 0 to 99999999.9 KWh
Accuracy: Class 0.5 as per IS14697 |
Total Apparent
Energy (KVAh) |
Range of Reading: 0 to 99999999.9 KVAh Accuracy: Class 0.5 as per IS14697 |
Total Apparent
Energy (KVARh) |
Range of Reading: 0 to 99999999.9 KVARh Accuracy: Class 1.0 |
| Power Quality |
3rd to 15th Harmonics(Odd) for all Voltages with THD |
| 3rd to 15th Harmonics(Odd) for all Currents with THD |
| Demand |
Active Power (KW) Demand - Sliding & Fixed, Selectable |
| Apparent Power (KVA) Demand - Sliding & Fixed, Selectable |
|
| Miscellaneous |
Dimensions |
Bezel |
144 X 144 mm |
| Panel Cutout |
138 X 138 mm |
| Depth of installation |
55 mm |
| |
Display |
128 X 64 graphical Backlit LCD |
| |
Operating temp |
10°C to 50°C |
| |
Weight |
0.65 Kgs (Approx.) |
| Communication |
Operating
Current Range |
0.4% to 120% of CT primary |
Data Logging
Buffer |
2MB, Non-volatile memory, Can hold 19691 records |
| Logging Duration |
Site selectable from 1 minute to 60 minutes |
| RS485 |
Modbus-RTU protocol |
| USB port and directly access pen-drive |
for downloading logged data |
