Haiyan Jinhan Electronics Technology Co., Ltd.

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

OnLine Service:

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	Max. Input Over Capability
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
Single Phase	5 A	220V (240V)	± 1KW	± 1KVar
3-Phase 3-Wire	5 A	110V (120V)	± 1KW	± 1KVar
3-Phase 3-Wire	5 A	220V (240V)	± 2KW	± 2KVar
3-Phase 4-Wire	5 A	190V/110V (208/120V)	± 1.5KW	±1.5KVar
3-Phase 4-Wire	5 A	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	0~500 W

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