AC Energy Meter
AC Panel Three Phase Multifunction Energy Meter SPM33 with Modbus
Main Documents
Compatible Software
Smart PiEMS System
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SPM33 is a low-cost, economical power meter that is suitable for both low and high voltages up to 650kV.
It provides a dual source kWh record for both the grid and generator, making it a great choice for those in
need of an accurate power measurement device. The built-in MODBUS-RTU protocol makes the SPM33
compatible with most system integration requirements, making it a versatile and useful tool for a wide
variety of applications.
- Real-time measuring data include:
Three phase voltage, current, active power, reactive power, apparent
power, power factor, frequency, phase angle. (Optional: Displacement power factor)Energy data: Imp. & Exp. Energy , (Optional: Multi-tariff energy, four-quadrant energy)
Demand data: Demand and peak demand for 3 phase current, 3 phase active power, total active power. (Optional: Forecast demand, monthly peak demand)
Power quality data: Up to 63 rd harmonic, harmonic ratio (HRU, HRI), THD, Unbalance. (Optional: current K factor, voltage crest factor, current TDD)
SPM33 provides the main function as below
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.Optional History Data record: Last 12 monthly energy, and last 10 yearly energy..Optional SOE event log: 64pcs of event log, 10pcs of operation log..Alarm function: Alarm for over-voltage, under-voltage, over-current, under-current, phase lost, over-frequency, under-frequency, over power, phase error, DI 1, DI 2 status change..2 digital input (wet contact) .
.Optional 4 DI (wet or dry) ..Optional 4 relay output
.One RS485, Modbus-RTU protocol .Rated input 1A or 5A settable.
.1 phase or 3 phase settable
Specification
|
Connection Mode |
1 phase 2 wires,3 phase 3 wires 3 phase 4 wires |
Power Supply |
85~265VAC or 100~300VDC |
|
Metering |
True RMS,1 sec refresh time |
Power loss |
<5VA |
|
Input |
Rated current:5A or 1A Rated voltage：220/380V,35Hz-65Hz |
Communication |
RS485 serial,support Modbus-RTU Baudrate:4800,9600,19200 bps Address:1～247 Optional RJ45,support Modbus-TCP |
|
Overload |
Current: 120%of rated,continuously Instantaneous current:10 times/ | ||
|
Dimension (L x W x H) |
Panel:96x96x18 mm Cut-out:89.5x89.5x69.8 mm(+0.5mm） | ||
| Low voltage system Up to 400V(L-N)/650V(L-L) High voltage system Up to 650kV | |||
|
lP index |
IP54(front panel)and IP20(case) | ||
|
Weigh |
Approx.500gr. |
|
Status input (optional) |
≤6 channels Wet contact (active status input):voltage less than 60V is open,more than 140V is closed,the maximum input is 300V Optional dry contact output:DC30V |
Environment |
Normal operating temperature:-10℃~+55℃ Operating temperature:-25℃~+55℃ Storage temperature:-40℃~+70℃ Humidity:5%-95%non-condensing | ||
|
Relay output (optional) |
≤4 channels Node capacity:250Vac/5A |
Standard (EMC) |
Electrostatic discharge immunity test IEC61000-4-2,Level4 Radiated immunity test IEC61000-4-3,Level4 Electrical fast transient/burst immunity test IEC61000-4-4,Level4 Surge immunity test(1,2/50μs~8/20μs) IEC61000-4-5,Level 4 | ||
|
Power frequency withstand voltage |
AC 4KV/minute | ||||
|
Insulation resistance |
≥100MQ | ||||
|
Impulse withstand voltage |
6kV(peak),1.2/50uS | ||||
|
Parameter |
Accuracy |
Measuring Range |
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|
Voltage |
0.2% |
Direct input line-line 10~500V,Line -neutral:10～400V PT primary:650KV,PT secondary:100-400V |
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|
Current |
0.2% |
CT primary:50,000A,CT secondary:5mA-6.5A |
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Power factor |
1.0% |
-1.0000~1.0000 |
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Active power |
0.5% |
0~±9999MW |
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Reactive power |
1.0% |
0~±9999Mvar |
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Apparent power |
1.0% |
0~9999MVA |
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Active energy |
0.5% |
0~99,999,999.9 kWh |
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Reactive energy |
2.0% |
0~99,999,999.9 kvarh |
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Apparent energy |
2.0% |
0~99,999,999.9 kVAh |
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Voltage or current unbalance |
1.0% |
0%~100% |
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Harmonic |
Class B |
0%~100% |
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