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S3-WRAD watt/var/current combination transducer

Power transducer S3,N3 series power Transducer

Quick Overview

S3-WRAD 3φ3W, Accuracy:± 0.2% RO. S3-WAD 3φ3W, Accuracy:± 0.2% RO. S3-RAD 3φ3W, Accuracy:± 0.2% RO. N3-WRAD 3φ3W, Accuracy:± 0.5% RO. N3-WAD 3φ3W, Accuracy:± 0.5% RO. N3-RAD 3φ3W, Accuracy:± 0.5% RO

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1.FEATURES

Excellent long term stability (4 ~ 20mA, 500 W )

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

2.2 Model: 

S3-WRAD   3φ3W, Accuracy:± 0.2% RO.

S3-WAD     3φ3W, Accuracy:± 0.2% RO.

S3-RAD      3φ3W, Accuracy:± 0.2% RO. 

N3-WRAD   3φ3W, Accuracy:± 0.5% RO.

N3-WAD     3φ3W, Accuracy:± 0.5% RO.

N3-RAD      3φ3W, Accuracy:± 0.5% RO

2.3 Introduction:

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

3.1INPUT - OUTPUT CURVE

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


3.3 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


4、Trminal Connection

3:外形尺寸图:



1.Model:

S3-WRAD : 3φ3W,  active/reactive/current combination transducer, Accuracy: ± 0.2%RO

S3-WAD  : 3φ3W active power/current combination transducerAccuracy: ± 0.2%RO

S3-RAD  : 3φ3W reactive power/current combination transducerAccuracy: ± 0.2%RO

N3-WRAD : 3φ3W active/reactive/current combination transducerAccuracy: ± 0.5%RO

N3-WAD  : 3φ3Wactive power/current combination transducerAccuracy: ± 0.5%RO

N3-RAD  : 3φ3W reactive power/current combination transducer,Accuracy: ± 0.5%RO

 

2.选型指定事项:



2. 型号及参数填写示例:

1) N3-WRAD-3-555A4BY

0.5 级三相三线有功/无功功率/电流变送器(跨相法)

输入标称电流:5A;

输入标称电压:100V;

标称输入功率④(有功功率/无功功率):866W/866Var

输入信号频率:50±5Hz;

输出范围:4~20mA;对应 0~5A

4~12~20mA;分别对应 -866~0~866W /-866~0~866Var

辅助电源:AC220V。需要测量逆向功率。

2) S3-WRAD-3T-555A4BY

 0.2 级三相三线有功/无功功率变送器(移相法)

输入标称电流:5A;输入标称电压:100V;

标称输入功率④(有功功率/无功功率):866W/866Var

输入信号频率:50±5Hz;

输出范围:4~20mA;对应 0~5A

4~12~20mA;分别对应 -866~0~866W /-866~0~866Var

辅助电源:AC220V。需要测量逆向功率。

注:

①.系统:有T 标注,用移相法测量;无T标注,用跨相法测量。

②组合变送器中电流的测量为单独的,用户可以根据其系统要,任意接入A、B、C 相中的任一相电流。

③输出范围()内的值,为正、逆向功率输出时所指定值。对于无功功率测量:当输出负向值时,表示系统的容性阻抗最大;当输出正向值时,表示系统的感性阻抗最大。

④对系统功率的标定见前有功功率注释:②项。

⑤若用户需要其他特殊标定,请在合同中注明参数值。 

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