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Single and 3 phase power monitoring

Model ND1 ::: 3-phase power monitor and data logger

The ND1 is a modern, compact and easy to use panel mounting power monitor. It uses a familiar Windows interface, with touch-screen simplicity. An in-built web server allows you to include the monitor on a network for remote access.

ND1 3 phase network power monitor and data logger

Measurement capabilities:-

  • Phase voltages: U1, U2, U3 and phase currents: I1, I2, I3
  • Phase-to-phase voltages: U12, U23, U31
  • 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: tgj1, tgj2, tgj3
  • Mean phase-to-phase voltage: US Umf
  • Current in neutral wire and mean 3-phase current: IO, IS
  • Active, reactive and apparent 3-phase power: P, Q, S
  • Mean 3-phase power factors: PF, tgj
  • Frequency f and frequency deviation
  • 15 minutes’ mean active power: PAV
  • Active, reactive and apparent 3-phase energy: EnP, EnQ, EnS
  • THD for voltage and phase current,
  • Current and phase voltage harmonics (up to 51st)
  • Storage of min and max values
  • Recording of dips and voltage decays to EN50160
ND1 - Specifications
Format144mm x 144mm IP65 sealed panel
Input connectionsDetachable screw terminals on the rear.
CommunicationsEthernet 10 Base-T
Modbus TCP/IP
USB 1.1 Device
RS-485 Modbus Slave.
Current Inputs0-1A or 0-5A via CT
Voltage inputs3 or 4 wire, up to 415V
Max. Overload5 Seconds: < 1000V, <10A
Analogue Outputs4 x 4-20mA programmable
Relay outputs6 x programmable alarm relays rated 1A 250V AC
Supply voltage85-253 V AC < 30VA
Front sealingIP65

3 Wire connection
3 wire 3 phase power meter connection

4 Wire connection
4 wire 3 phase power meter connection


Generator Synchroscope

KS32 Synchronising unit The KS32 synchronising unit comprises of a 360 degree synchroscope and differential voltmeter in a 96 x 96mm panel mounting unit.

Horizontal bargraphs show Frequency and Voltage mismatch. A relay output activates when the generator is within the acceptable band of matching for phase, frequency and voltage.

generator synchronising unit

Economy 3 phase power monitors

Three panel mounting instruments for monitoring power in single and 3 phase power installations.


single and 3 phase power monitor

N14N13N10

96x96 mm

96x96 mm

96x96 mm

3 digits

4 digits

4 digits

RMS V & I
VA, VAr
P.F.
Frequ.
Avg. Pwr

RMS V & I
VA, VAr
P.F.
Frequ.
Avg. Pwr

THD analyser
RMS V & I
VA, VAr
P.F.
Frequ.
Avg. Pwr

Outputs

Alarm Relay
RS485
5000 pulses/kWh

Outputs
Alarm Relay
RS485
-20...+20mA

Outputs
3 Alarm Relays
RS485
-20..+20mA
kWh pulse

85...250VAC power

85...250VAC power

85...250VAC power



The N14 is the basic 3 digit model, ideal for general monitoring on 3 and 4 wire, balanced and unbalanced power circuits.

The alarm relay can be assigned to any measurement variable. Crest factor max. 2

The N13 has 4 digits, for greater resolution.

The N10 offers the greatest flexibility. It allows you to have up to 20 pages of display combinations.

In addition, it computes the total Harmonic distortion of the current and voltages, up to the 25th harmonic. Ideal for monitoring variable speed drive performance and any other source of generated power, where waveform purity may vary.



P12P Economy single phase power monitors

p12p single phase power monitor



p12p single phase power monitor

Datasheet

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