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S3-WRD ACTIVE&REACTIVE POWER(WATT&VAR) TRANSDUCER

Power transducer S3,N3 series power Transducer

Quick Overview

S3-WRD-1 1φ2W, Accuracy:± 0.2% RO. S3-WRD-3 3φ3W, Accuracy:± 0.2% RO. S3-WRD-3A 3φ4W, Accuracy:± 0.2% RO. N3-WRD-1 1φ2W, Accuracy:± 0.5% RO. N3-WRD-3 3φ3W, Accuracy:± 0.5% RO. N3-WRD-3A 3φ4W, Accuracy:± 0.5% RO

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1.FEATURES

◆Excellent long term stability (4 ~ 20mA, 500  )
◆Precision measurement even for unbalance system
◆Precision measurement even for distorted wave
◆ High impulse & surge protection (5KV)
◆The case can be mounted on a 35mm rail which complies with DIN 46277

2.DESCRIPTION 
 Model:
S3-WRD-1 1φ2W, Accuracy:± 0.2% RO. 
S3-WRD-3 3φ3W, Accuracy:± 0.2% RO. 
S3-WRD-3A 3φ4W, Accuracy:± 0.2% RO. 
N3-WRD-1 1φ2W, Accuracy:± 0.5% RO. 
N3-WRD-3 3φ3W, Accuracy:± 0.5% RO. 
N3-WRD-3A 3φ4W, Accuracy:± 0.5% RO. 
  A wide range of transducers to measure all forms of WATT, VAR, in both balanced and unbalanced, single or 3 phase system. They utilize the well prove "time division multiplication" method of measuring instantaneous power over a wide range of input waveforms. The circuit diagram shown measured voltage is modulated by circuit of an oscillator. Square wave pulses from a multi-vibrator circuit, with a mark.- space ratio varied by the measured voltage and amplitued by the measured current, are fed to an integrator an output amplification circuit. The dc signal produced is then directly proportional to power input - Watt & Vars.

3.SPECIFICATION:
3.1 INPUT:

Input Range

Max. Input Over Capability

Circuit

Amp.

Voltage

Basic W

Basic Var

Single Phase

5 A

110V (120V)

± 0.5KW

± 0.5KVar

Ampere:

3 x rated continuous

10 x rated 10 sec.

50 x rated 1 sec.

 

Voltage:

2 x rated continuous

220V (240V)

± 1KW

± 1KVar

3-Phase 3-Wire

5 A

110V (120V)

± 1KW

± 1KVar

220V (240V)

± 2KW

± 2KVar

3-Phase 4-Wire

5 A

190V/110V (208/120V)

± 1.5KW

±1.5KVar

380V/220V (416/240V)

± 3KW

± 3KVar


3.2 OUTPUT:

DC Output Range

Load Resistance

Output Resistance

Output Ripple

Response Time

-1 ~ 0 ~ 1V

1K

0.05W

 0.5% RO.

(Peak)

400mS.

0 ~ 99%

-5 ~ 0 ~ 5V

1 ~ 3 ~ 5V

0 ~ 5 ~ 10V

-1 ~ 0 ~ 1mA

0 ~ 10K

20MW

-10 ~ 0 ~ 10mA

0 ~ 1K

 

5MW

0 ~10 ~ 20mA

0~500 W

4 ~12 ~ 20mA


4.Specification:

Aux. power supply

AC 110V ± 15%, 50/60HZ

AC 220V ± 15%, 50/60HZ

DC24V, 48V, 110V,  ± 15%

Power consumption

-2.5VA, DC 3W

Power effect 

 0.1%  RO

Waveform effect

0.2% RO. at  distortion  factor  30%(  PCIR)

Output load effect

0.05% RO.

Magnetic field strength

-0.2% RO., 400A/M

Span adjustment range

5%RO

Zero adjustment range

1%RO

Operating temperature range

0 ~ 60

Operating temperature range

0 ~ 60

Storage temperature range

-10 ~ 70 

Temperature coefficient

- 100PPM  from  0  to  60

 60PPM, 25。C   ±  10

Max. relative humidity

95%

Isolation

Input/output/power/case

Insulation resistance

100M W, DC 500V

Dielectric withstand voltage

Between input/output/power/case

(IEC 414, 688,ANSI, C37)  AC 2.6KV, 60HZ, 1 min.

Impulse withstand test

5KV,   1.2   X 50μS

(IEC 255-4, ANSI C37 90a)  Common mode  & differential mod

Performance

Designed to comply with IEC688

Safety requirements

IEC 414, BS5458


5.Trminal Connection
5.1 S3-WD-1, N3-PD-1 (1φ2W):

5.2 S3-PD-3, N3-PD-3 (3φ3W)


6.THE OUTSIDE DIMENSION (UNIT:mm)

7.PANEL MOUNTING HOLES (UNIT:mm)

1. Model:

S3-WRD-1T:1φ2W active power / active power transducer, accuracy class: 0.2% RO (phase shift )

S3-WRD-3 : 3φ3W  active power / active energy transducer, accuracy grade: 0.2% RO

S3-WRD-3T: 3φ3W active power / active energy transducer, accuracy grade: 0.2% RO (phase shift)

S3-WRD-3AT : 3φ4W active power / active power transducer, accuracy grade: 0.2% RO (phase shift)

N3-WRD-1T : 1φ2W active power / active power transducer, accuracy class: 0.5% RO (phase shift)

N3-WRD-3 : 3φ3W active power / active energy transducer, accuracy grade: 0.5% RO

N3-WRD-3T :3φ3W active power / active power transducer, accuracy grade: 0.5% RO (phase shift)

N3-WRD-3AT:3φ4W active power/active powertransducer, accuracy class: 0.5% RO (phase shift)


2.Order form:


  


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