3 Phase Power Monitoring Meter - LUMEL N10

Ideal for: Panel instrumentation, Sub-billing/cost allocation & Remote monitoring of an electrical installation applications.

 

Panel mounted 3 phase power monitoring network meter, the N10 is ideal for measurement and conversion of power network parameters in 3-phase 3 or 4-wire symetrical or asymetrical systems, including harmonics up to 25th for current and voltage and THD factor.

Please register to access our files.

Once registered, you will be redirected to this page, and you won't have to register again to access files on this site.

We promise never to share your information with anyone! See our Privacy Policy









Overview

Features include:

  • input: programmable - 100V, 400V, 1A, 5Aac,
  • output:
    • 3 relays and 1 analog output (N10 type),
    • 1 relay and 3 analog outputs (+/-) (N10A type),
  • digital output RS485 - MODBUS protocol,
  • 1 passive pulse output,
  • supply: 85...253Vdc or ac 40...400Hz,
  • display field: 4 x 5 digits LED, 10mm high, red or green colour.
  • external dimensions: 144 x 144 x 77mm

 

Power Parameters:

  • phase voltages: U1, U2, U3
  • phase-to-phase voltages: U12, U23, U31
  • phase currents: I1, I2, I3
  • active phase powers: P1, P2, P3
  • reactive phase powers: Q1, Q2, Q3
  • apparent phase powers: S1, S2, S3
  • active power factors: PF1, PF2, PF3
  • reactive/active power factors: tgφ1, tgφ2, tgφ3
  • 3-phase active/reactive and apparent powers: P, Q, S
  • mean 3-phase power factors Pf, tgφ
  • frequency f
  • mean 3-phase voltage Us
  • mean phase-to-phase voltage Umf
  • mean 3-phase currrent Is
  • mean active power e.g. 15 min PAV
  • 3-phase active, reactive and apparent energy EnP, EnQ, EnS
  • total harmonic distortion factors for phase voltages and phase currents THDu1, THDu2, THDI1, THDI2, THDI3
  • harmonics of phase coltages and currents up to the 25th

 

Please register to access our files.

Once registered, you will be redirected to this page, and you won't have to register again to access files on this site.

We promise never to share your information with anyone! See our Privacy Policy









Back to top

Technical Information

 

MEASURED PARAMETERS AND MEASURING RANGES 

Measured value

Indication range

Intrinsic error

Remarks

Voltage Ui

100 V (Ku = 1) 
400 V (Ku = 1)
for Ku ≠ 1: …400 kV

± (0.2% m.v + 0.1% of range)

Ku = 1... 4000

Current Ii

1.000 A (Ki = 1)
5.000 A (Ki = 1) 
for Ki ≠ 1: …20.00 kA

± (0.2% m.v + 0.1% of range)

Ki = 1... 20000

Active power Pi
Mean active power PAV
Active energy EnP, EnPz

0.0...(-)1999.9 W (Wh)
for Ku ≠ 1, Ki ≠ 1 (-)1999.9
MW (MWh)

± (0.5% m.v + 0.2% of range)

 

Apparent power Si
Apparent energy EnS, EnSz

0.0...1999.9 VA (VAh)
for Ku ≠ 1, Ki ≠ 1: 1999.9 MVA
(MVAh)

± (0.5% m.v + 0.2% of range)

 

Reactive power Qi
Reactive energy EnQz

0.0...(-) 1999.9 var (varh)
for Ku ≠ 1, Ki ≠ 1: (-)1999.9
Mvar (Mvarh)

± (0.5% m.v + 0.2% of range)

 

Active power factor Pfi

- 1.00... 0.00... 1.000

± 1% m.v ± 2c

Pf = P/S (power factor)

Coefficient tgφi
(ratio of reactive power to active power)

- 99.9...0... 99.9

± 1% m.v ± 2c

error in the range
- 9.99...0...9.99

Frequency f

15.0... 500.0 Hz

± 0.5% m.v

 

THD U, THD I

0.2... 200%

± 5% m.v ± 2c

error in the range
10…120% U, I, 47..52 Hz

Harmonics

up to the 25th

 Where: Ku - ratio of voltage transformer, Ki - ratio of current transformer, m.v - measured value, c - the least significant display digit

 

INPUTS 

Input type

Properties 

Reactive impulse input

0/24V d.c. ±50% (N10 type) 

 

OUTPUTS

Output type

Properties

Relay output

• 3 relays, voltageless NO contacts, load capacity 250 V a.c./0.5 A a.c. (N10 type)
• 1 relay, voltageless NO contacts, load capacity 250 V a.c./0.5 A a.c. (N10A type)

Analog output

• 1 output: 0…20mA (4…20mA), programmable, accuracy 0.5% (N10 type)
• 3 outputs: -5…5mA, programmable, accuracy 0.2% (N10A type)

Reactive impulse input

• 0…2 Hz, 12…50V d.c. (5…20mA) (N10 type)

 

DIGITAL INTERFACE

Type of interface

Transmission protocol

Mode

Baud rate 

RS-485

MODBUS RTU and ASCII

8N2, 8E1, 8O1, 8N1, 7E1, 7O2

0.3; 0.6;…, 19.2; kbit/s 

 

EXTERNAL FEATURES

Readout field

4 x 5 LED digits

red or green colour, 14 mm

Overall dimensions

144 x 144 x 77 mm

Panel cut-out : 138+0,5 x 138+0,5 mm

Weight

0.8 kg

 

Protection grade

from frontal side: IP40

 from terminal side: IP10

 

RATED OPERATING CONDITIONS

Supply voltage

85…250 V a.c. (40…400 Hz) or d.c.

power input ≤ 12 VA

Power input

in voltage circut ≤ 0.5 VA

in current circut ≤ 0.1 VA

Input signal

•0...0.01...1.2 In; 0…0.01...1.2 Un
for current, voltage, frequency, power
and energy; 
•0.1…1.2 In; 0.1…1.2 Un; 
47…52 Hz for THD U, 
THD I and harmonics

•0...0.02...1.2 In; 0...0.07...1.2 Un for power factors Pf, tgφ;
•frequency 15…45…65…500 Hz
•sinusoidal signal (THD ≤ 8%)

Power factor

-1…0…1

 

Preheating time

5 min.

 

Temperature

ambient 0…23…55°C

 

Humidity

25…95%

inadmissible condensation

Operating positions

any

 

External magnetic field

0…40…400 A/m

 

Short duration overload (5 s)

voltage input: 2Un (max. 1000 V)

current input: 10 IN

Admissible peak factor

current intensity: 2

voltage: 2

Additional error
(in % of the intrinsic error)

from frequency of input signals: <50%

from ambient temperature changes: <50%/10°C

 

SAFETY AND COMPATIBILITY REQUIREMENTS

Electromagnetic compatibility

noise immunity

acc.to EN 61000-6-2

noise emissions

acc.to EN 61000-6-4

Isolation insured by the casing

double

acc.to EN 61010-1

Isolation between circuits

basic

Polution level

2

Installation category

III

Maximal phase-to-earth voltage

600V

Altitude a.s.l.

< 2000 m

Outputs - Number and Types
4 in total, N10 type 3 x relay outputs plus 1 x 4-20mA, N10A type 1 relay output plus 3 x mA outputs (programmable)
Communication
RS485 Modbus RTU and ASCII
Supply Voltages
85 to 250Vac (40 to 400Hz) or dc
Panel Sealing
Front = IP40, Rear = IP10
Approvals
CE
Dimensions and Fixing Holes
144 x 144 x 77mm
Operating Temperature
0 to 55 deg. C

Please register to access our files.

Once registered, you will be redirected to this page, and you won't have to register again to access files on this site.

We promise never to share your information with anyone! See our Privacy Policy









Back to top

Installation (Click on images for larger view)

Please register to access our files.

Once registered, you will be redirected to this page, and you won't have to register again to access files on this site.

We promise never to share your information with anyone! See our Privacy Policy









Back to top

Documentation

Technical Data Sheet
Operating & Installation Manual

Please register to access our files.

Once registered, you will be redirected to this page, and you won't have to register again to access files on this site.

We promise never to share your information with anyone! See our Privacy Policy









Back to top

Videos

Please register to access our files.

Once registered, you will be redirected to this page, and you won't have to register again to access files on this site.

We promise never to share your information with anyone! See our Privacy Policy









Back to top