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LUMEL

LUMEL

P43 programmable transducer

3-phase transducer of power network parameters

  • Inputs for monitoring 3 phase power networks
  • Suitable for balanced or unbalanced systems
  • 4 programmable analogue outputs -20 - 0 - +20mA
  • Pulse output for consumption monitoring

Product description

The P43 transducer is a programmable digital instrument destined for measurement and parameter conversion of 3 or 4-wires power networks, in balanced and unbalanced systems.
It ensures the measurement and conversion of measured values upto 4 standard analog current signals. The value of each measured quantity can be transmitted to the master system by the RS-485 or USB interface. Two relay outputs signal the overflow of selected quantities, and the pulse output can be used for the consumption monitoring of the 3-phase active energy.

Maximal and minimal values are measured for all quantities. Additionally, there is the possibility to accommodate the transducer to external measuring transformers. The actualization time of all available quantities does not exceed 1 second.

All quantities and configuration parameters are accessible through the RS-485 interface and the USB interface. Transducer output signals are galvanicaly isolated from the input signal and the supply. The transducer housing is made of a self-extinguishing plastic. Outside the transducer, there are socket-plug screw terminal strips.

Quantities measured and calculated by the transducer:
• phase voltages U1, U2, U3
• phase–to-phase voltages U12, U23, U31
• 3-phase mean voltage U
• phase-to-phase mean voltage UPP
• three-phase mean current I
• phase currents I1, I2, I3
• phase active powers P1, P2, P3
• phase reactive powers Q1, Q2, Q3
• phase apparent powers S1, S2, S3
• phase active power factors Pf1, Pf2, Pf3
• reactive/active ratio of power factors tgϕ1 ,tgϕ2 ,tgϕ3
• three-phase mean power factors Pf, tgϕ
• three-phase active, reactive and apparent powers P, Q, S
• active mean power (e.g.15 min.) Pav
• three-phase active and reactive energy Ept, Eqt,
• frequence f

Technical data

Measuring ranges and admissible basic errors

Measured
quantity

Measuring
range

L1

L2

L3

Σ

Intrinsic error

Current 1/5A
L1...L3

0.02...6 A~

 

± 0.2%

Voltage L-N

2.9...276 V~

 

± 0.2%

Voltage L-L

10...480 V~

 

± 0.5%

Frequency

45.0...66.0 Hz

 

± 0.2%

Active power

-1.65 kW...1.4
W...1.65 kW

± 0.5%

Reactive power

-1.65 kvar...1.4
var...1.65 kvar

± 0.5%

Apparent power

1.4 VA...1.65
kVA

± 0.5%

Tangens j

-1.2...0...1.2

± 1%

PF factor

-1...0...1

± 0.5%

Input active energy

0...99 999 999.9
kWh

 

 

 

± 0.5%

Output active energy

0...99 999 999.9
kvarh

 

 

 

± 0.5%

Inductive reactive energy

0...99 999 999.9
kvarh

 

 

 

± 0.5%

Capacitive reactive energy

0...99 999 999.9
kvarh

 

 

 

± 0.5%

THD

0...100%

 

5%

Power consumption:
- in supply circuit ≤ 6 VA
- in voltage circuit ≤ 0.05 VA
- in current circuit ≤ 0.05 VA

Outputs

 

Analog output

0, 2 or 4 programmable outputs:
-20...0..20 mA, Rload = 0...250Ω,
accuracy 0.2%

Relay output

0, 2 or 4 relays,
voltageless NO contacts
load: 250 Vac/0.5 A ac

Serial interface

RS-485, USB

Transmission protocol

Modbus RTU

Energy pulse output

output of OC type, passive
acc.to EN 62053-31

Impulse energy output

O/C passive, acc. to EN 62053-31,
impulse constant: 5000..20000 imp/kWh
programmable, independent on Ki,
Ku ratio settings

Ratio of the voltage transformer Ku

1.0...4000

Ratio of the current transformer Ki

1...10000

Protection degree:

 

– for the housing

IP 40

– from terminals (rear side)

IP 20

Weight

0.3 kg

Overal dimensions

90 x 120 x 100 mm

Fixing way

on a 35 mm DIN rail

Reference and rated operating conditions:

– supply voltage

85...253 V d.c./a.c., 40...400 Hz
or 20...40 V d.c./a.c., 40...400 Hz

– input signal

0...0.005...1.2In; 0.05...1.2Un for
current, voltage
0...0.1...1.2In; 0...0.1...1.2Un; for
power factors Pfi ,tϕi frequency
45...66...100 Hz; sinusoidal
(THD ≤ 8%)

– power factor

-1...0...1 .

– analog output

-24..-20...0...20...24 mA

– ambient temperature

-25...23...+55°C

– storage temperature

-30...+70°C

– humidity

25...95%
(inadmissible condensation)

– admissible peak factor:

 

- current

2

- voltage

2

– external magnetic field

0...400 A/m

– short duration overload

(5 s)

– voltage inputs

2Un (max.1000 V)

- current imputs

10 In

- working position

any

– preheating time

5 min.

Additional errors:

In percentage of the intrinsic terror:
– from frequency of input signals

< 50%

– from ambient temperature changes

< 50%/10°C

Standards fulfilled by the meter

 

Electromagnetic compatibility:

– noise immunity acc. to EN 61000-6-2
– noise emission acc. to EN 61000-6-4

Safety requirements: - (According to EN 61010-1 standard)

– isolation between circuits:

basic,

– installation category:

III,

– pollution level:

2,

– maximal phase-to-hearth voltage:

300 V

– altitude above sea level:

< 2000 m

 

Front view

Part number key

 

Ordering information

Please refer to the data sheet for ordering keys and contact us for more information.

 

Part numbers

Parts Price

Part

P43111100
P43 Trans,1A,3 x 57.7/100V,85-253V ac/dc,4 x Relays

Measurements and connections

Contact us

If you need any help, you can contact us in one of the following ways:

0116 284 9900

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