Details : • Accuracy classes: 0.05%, 0.1% • Measurement of energy meter errors, display of voltage, current, power, power factor, frequency etc. • Measurement of harmonics of 2nd to 51st • Measurement of clock error (of energy meter) • Measurement of transformation ratio for CT • Communication examination for energy meters • Measurement for register • Detection of wiring failures and calculation of electricity compensation • USB and communication ports available • Self adjusted clamp-on CT’s (KHPEC’s patent) provided • Double of power supply via lithium battery or PT
Main features:
• Automatic/manual measurement of single phase, three phase three wire, three phase four wire active and reactive induction energy meters and static energy meters (by sampling pulse) • Comparison measurement of voltage, current, power, power factor, phase, frequencyof other electric instruments and transmitter by • Measurement of secondary burden of PT and CT; proofreading of constant of energy meter; energy measurement of four quadrants • Simultaneous measurement of errors for active and reactive energy meters; simultaneous measurement of errors of master and sub meter; automatic calculation of standard deviation estimates • Simultaneous measurement of active and reactive errors for load management terminal and distribution/ substation monitoring terminals; measured data can be read and stored via RS 485 port or IR port • Equipped with RS485,RS232, IR and USB port - Via the USB port, information of customers and energy meter can be downloaded from the marketing management system; measured data can also be uploaded to the management system - KWh, voltage, current, power and phase angle ect of energy meter and management terminals can be read via RS485(RS232) or IR port; also, broadcasting or command (according to the reference meter) time pairing provided • Self adjusted clamp-on CT’s enable long term accuracy; minimum measuring range of current to 1mA (with 1A/5A clamp-on CT’s) • Wiring testing is accessible on a new no-load field (with PT/CT) • Barcode input via external scanner, ID number of energy meter and number of seal can be read, and easily input on site • Touch screen supports handwriting input • True reactive digital measurement technique, stable operation without influences of voltage/current unbalances, phase angle asymmetry and frequency changes; reactive accuracy to 0.1% • Stability is highly improved without the utilization of potential meter • 5A clamp-on CT’s with 0.2 accuracy class provided • 20A,100A,500A,1000A clamp-on CT’s for selection; transformation ratio of CT can be measured with the utilization of a 5A clamp-on CT’s meanwhile • Automatic diversion of voltage (30V~480V), 5A current direct input • Detection of regular wiring failures of three phase three wire(48), three phase four wire circuits(96); vector diagram display • Measurement of harmonics (2nd ~51st ), measured data can be stored • Simultaneous display of waves of three phases’ voltage and current • Data management - Measured data of 1000 energy meters can be stored including working parameters for further analysis - Communicable to PC, convenient connection to existing data base and management system; PEC Energy Meter Management System software is provided (optional) - With the utilization of a flash disk and upgrade software, measured data can be uploaded/downloaded at anytime • Double way of power supply via lithium battery or measured circuit • Light plastic enclosure design
Technical Data
General |
Power supply |
AC57~450V, 50~60Hz |
Power consumption |
About 10VA |
Ambient temperature |
-20℃--+40℃ (accuracyassured) |
Relative humidity (not condensing) |
40%-95% |
Dimension(L×W×H, mm) |
249×154×58 |
Weight |
1.8Kg |
Warm-up time |
< 3 minutes |
Battery endurance |
4 hours |
LCD color display |
5.7”, 320×240 TFT |
Communication port |
RS 232 |
Safety |
Declaration of conformity |
CE conformed |
Operation reference |
Measuring ranges |
Voltage |
AC 30~480V |
Current:
|
Direct connection—1A, 5A
Via clamp-on CT’s: 5A, 20A(±0.2%, self adjusted), 100A, 500A, 1000A(±0.5%) |
Frequency |
45~65Hz |
Phase |
-180 º ~+180º |
Constant of pulse |
5A: FL=3.6×104P/KWh FH=3.6×107P/KWh Others: FL=36000×5/rated current (P/KWh)
FH=3.6×107×5/ rated current (P/KWh) |
Harmonic measurement |
Range: 2nd ~51st
Accuracy: ±0.01% (compared to 100% fundamental wave) |
Transformation ratio deviation |
< ±0.5% |
Voltage deviation |
< ±0.01% |
Frequency deviation |
< ±0.01%(45-55Hz) |
Influence of temperature |
< ±5ppm/ ℃(typical) |
Variation in 24hrs. |
<±0.02% (class 0.1) |
<±0.01% (class 0.05) |
Intrinsic error |
Current input ( via Clamp-on CT’s) |
5A (self adjusted), 20A: ±0.2%
100A, 500A, 1000A, 1500A: ±0.5% |
Direct connection |
|
Accuracy class: 0.1 |
Accuracy class: 0.05 |
Active energy |
±0.1% |
±0.05% |
Reactive energy |
±0.1% |
±0.1% |
Active power |
±0.1% |
±0.05% |
voltage |
±0.1% |
±0.05% |
current |
±0.1% |
±0.05% |
Frequency |
±0.05Hz |
±0.05Hz |
Phase |
±0.1º |
±0.05º |
|