The single-phase guideway electronic energy meter is designed with advanced energy metering chip and mature software technology, and is used to measure single-phase AC active energy with a frequency of 50Hz/60Hz. Each performance index of this product meets the relevant technical requirements of GB/T17215.321-2008 Class 1 and Class 2 Static AC Active Energy Meters; The 8-bit LCD display shows the functional power consumption. It has the characteristics of good reliability, small size, light weight, beautiful appearance, advanced technology, 35mm DIN standard rail installation, etc.; it also has good electromagnetic interference resistance, low self consumption and power saving, high precision, high overload, high stability, power theft prevention, and long life. It is used for fixed installation indoors, and is applicable to the environment temperature not exceeding - 25~+55 ℃, the relative humidity not exceeding 95%, and the air does not contain corrosive gas and avoid the impact of dust, mold, salt fog, condensation, insects, etc.
1. Main technical parameters
1.1 Error limit:
Basic error limit of electric energy meter with load
Load current |
Power factor |
Basic error (%) |
Level 1 | Level 2 |
0.05Ib | 1.0 | ±1.5 | ±2.5 |
0.1Ib～Imax | 1.0 | ±1.0 | ±2.0 |
0.1Ib | 0.5(lagging) | ±1.5 | ±2.5 |
0.8(advance) | － | － |
0.2Ib～Imax | 0.5(lagging) | ±1.5 | ±2.5 |
0.8(advance) | － | － |
1.2 Starting
At reference voltage, reference frequency and Under the condition of COS Φ= 1, when the primary meter is 0.4Ib% and the secondary meter is 0.5Ib%, the electric energy meter can start and continuously measure electric energy.
1.3 Latency
When there is no current in the current circuit of the electric energy meter and the voltage applied to the voltage circuit is 115% of the rated value, the test output of the electric energy meter shall not generate more than one pulse.
1.4 Insulation performance
All lines of the electric energy meter can withstand the waveform of 1.2//50 μ s between the shells. The pulse voltage with a peak value of 6KV shall be tested for 10 times continuously under different polarities without arc discharge or breakdown. All lines of the electric energy meter can withstand an AC voltage of 2KV of 50Hz actual sinusoidal waveform between the meter case or the accessible metal parts outside the meter case, and the test lasts for one minute without breakdown.
1.5 Working voltage limit: 70%~130% Ub
1.6 Power consumption: ≤ 2W and 10VA
1.7 Display: LCD display
1.8 Data storage: after power failure, the data shall be stored for at least 10 years.
