LF3030 series intelligent AC electrical measuring meter can measure
3-phase power supply following parameters:
*Each phase's phase current、average phase current
*Each phase's phase voltage、average phase voltage
*Each phase's line voltage、average line voltage
*Frequency
*Each phase's active power、total active power
*Each phase's reactive power、total reactive power
*Each phase's apparent power、total apparent power
*Each phase's power factor、average power factor
*Each phase's max phase current、max total active power、max total reactive power、max total apparent power in certain period of time
*Each phase current、voltage 3-19 times harmonic component read from RS485
*Positive、negative active electric energy, positive、negative reactive electric energy

♦Contour

* Main machine dimension: 96mm×96mm×61mm

* Aperture dimension: 92mm×92mm

* Module dimension: 65mm×22mm×49mm

*Display types: LCD

♦Measuring:

Apply to 3P4W(balance or unbalance)

3P3W(balance or unbalance)

1P3W, 1-phase power system

* Voltage(TRMS)

.measuring range: 30~600V(line voltage)

20~400V(phase voltage)

.PT transformation ratio: 1~10000

. input power consumption: ≤0.25VA(220V)

≤0.60VA(600V)

.continuous overload: 800V

*Current(TRMS):

.measuring range: 0~6A

.min measuring current: 5mA

.CT transformation ratio: 1~10000

.input power consumption: 0.2VA

.continuous overload: 10A

.pulse overload: 100A/1s

* Power:

.signal phase power: 0~4000W/var/VA

.total power: 0~12000W/var/VA

* Frequency: measuring range: 50~60 HZ

* Power factor: measuring range: -1~1

* Harmonic wave measuring:(display total

harmonic wave capacity, communication

can read 1~19 times harmonic wave)

.Voltage THD: harmonic component is 0~30%

.Current THD: harmonic component is 0~30%

♦Auxiliary power supply:

AC85V~265V

DC85V~330V power consumption: ≤3VA

♦Measuring accuracy:

* Current: 0.5%(0.5~6A)

* Phase voltage: 0.5%(20~400V)

* Line voltage: 1.0%(50~600V)

* Power: 1.0%(relative to U*I)

* Power factor: 0.5%

* Frequency: 0.1%(50/60HZ)

* Electric energy: 1.0%(0.5L/0.5C)

♦Insulation strength:

* Voltage/current/power supply/case: 2.0KV/min.2mA

* Output/power supply: 2.0KV/min.2mA

♦Working conditions:

* working temperature:-15~55℃

* storage temperature:-25~+75℃

* relative humidity: 20~95%, without condensation

♦Electromagnetism compatibility:

* 1.2/50-8/20uS surge

Power supply:4KV I/O:2KV

* rapid transient pulse string:

power supply:4kV,2.5kHZ

I/O line:2kV, 5kHZ

* Static discharge:

contact discharge: 6kV

air discharge: 8kV

* RF electromagnetic field:

10V/m medium strength electromagnetic radiation

♦Communication:

* Interface: RS-485

* Address: 1-247

* Baud rate: 1200/2400/4800/9600/19200

* Parity bit nothing

* Data bit: 8 bits

* Stop bit: 2 bits

* Communication protocol: Modbus RTU

Electrical intelligent measuring meters' models in Xinruida:

1. LF3010 AC Electrical Intelligent Measuring Meter

2. LF3020 DC Electrical Intelligent Measuring Meter

3. LF3030 AC Electrical Intelligent Measuring Meter

4. LF3040 AC/DC Electrical Intelligent Measuring Meter

5. LF3050 Switch Value Intelligent Measuring Meter

6. LF3070 Multiway Analog Signal Acquisition Unit

7. LF3080 Power Operation Power Supply Comprehensive Measuring Meter

8. LF3090 Full Isolation Temperature Detection Meter