www.lumel.com.pl

1

eXample oF application

NR30PNET

Rail mounted poweR netwoRk meteRwith PRofiNET

• Measurement of 54 power network parameters and current and voltage

harmonicsupto51st,in1-phase2-wireor3-phase3or4-wirebalancedandunbalancedsystems.

• Backlit lcd screen

fully configurable by a user (22 views, 3 parameters in each).

• High accuracy class (0.2s for active energy).

• For direct (up to 63a) and indirect measurement (x/1a or x/5a).

• indications considering values of programmed ratios.

• memory of minimum and maximum values.

• 2 configurable alarm outputs.

• optional: with an additional module of analog outputs S4ao (max. 4 current or voltage

outputs).

• digital output RS-485 - modBuS protocol.

• Modern and user-friendly ethernet/profinet (version 2.2.) interface.

• programming of parameters through usb using free econ software.

• Battery backup Rtc.

• modular housing for S-rail according to en 62208 (the meter has a width of 6 modules).

cat iii







tric

al Sa

2x

RS-485 Modbus

SP1

SP2

->

Piec

Termopara K

Alarm

Alarm

Start/Stop

PLC

SCADA

LUMEL

PROCES

meaSuRement and ViSualiZation oF poweR netwoRk paRameteRS

• mean 3-phase voltage: u

S

• mean phase-to-phase voltage: u

mf

• mean 3-phase current: i

S

• 15, 30, 60 minutes’mean active power: p

demand

• mean apparent power S

demand

• average current i

demand

• active, reactive and apparent 3-phase energy: enp, enQ, enS

• active,reactiveandapparentenergyfromexternalcounter:enpe

• total harmonic content coefficients for phase voltages

and currents thd

u1, thdu2, thdu3, thdi1, thdi2, thdi3

and for 3-phase voltages and currents thd

u, thdi

• harmonics for current and phase voltage up to 51 st!

• phase voltages: u

1, u2, u3

• phase-to-phase voltages: u

12, u23, u31

• phase currents i

1, i2, i3

• active phase powers: p

1, p2, p3

• reactive phase powers: Q

1, Q2, Q3

• apparent phase powers: S

1, S2, S3

• active power factors: pF

1, pF2, pF3

• reactive/active power factors: tg

j

1, tgj2, tgj3

• active, reactive and apparent 3-phase power: p, Q, S

• mean 3-phase power factors: pF, tg

j

• frequency f