MEWOI1500C Upgraded Wireless H/Voltage Current Transformation Ratio Test Meter

INTRODUCTION

Click to download: MEWOI1500C Color Page

MEWOI1500C Wireless High Voltage Current Transformation Ratio Tester breaks traditional structure, specially designed for high and low voltage first and secondary loop current, variable ratio, and current leakage test; apply the latest CT technology and mask digital integration technology, composed of special high-voltage clamp, low voltage clamp, host, high voltage insulation rod and monitoring software, etc; its wireless transmission test data can penetrate multiple building obstacles with a straight-line distance of 30 meters.

With monitoring software, the meter has online real-time monitoring and historical query function, with dynamic display, wave direction, variable ratio, frequency indication, with maximum, minimum, mean value indication; alarm setting and alarm indication functions, functions of historical data reading, access, saving, analysis, processing, sorting, fitting curve, report and printing.

High-voltage detector connected rod can be used in the measurement of high voltage line current, currents on both sides of transformer, variable ratio test, online current monitoring below 60KV; The special clamp ammeter can facilitate clamp to exit the tested lead by pressing or pulling back insulation bar, which is time efficient and convenient; widely used in power plant, substation, industrial and mining enterprise, inspection station, electrician maintenance department for current sensing, power audit and field working.

SPECIFICATION

Function	High and low voltage first and secondary loop current, variable ratio, polarity, phase difference, current leakage online test; current on both sides of transformer, variable ratio online monitoring
Power supply	DC6V alkaline dry battery (1.5V AAA×4), continuous working for 30 hours
Test mode	Clamp CT
Transmission mode	Wireless transmission, the maximum distance of straight line transmission is about 30m
Display mode	LCD: 128dots×64dots; blue backlight function
LCD dimension	Display domain: 44mm×27mm
Meter dimension	Host: width, height, thickness75mm×170mm×30mm High voltage clamp: width, height, thickness 76mm×255mm×31mm Low voltage clamp: width, height, thickness 63mm×160mm×23mm
Clamp dimension	High voltage clamp: φ48mm Low voltage clamp: φ30mm
Sampling rate	About 2 times/second
Measurement scope	High voltage clamp: 0.1mA～1000A Low voltage clamp: 0.01mA～10A
Resolution	High voltage clamp: 0.1mA Low voltage clamp: 0.01mA
Shift	Automatic shift
One loop testing accuracy 23℃±3℃, below 80%RH	0.1mA～10.0A: ±1%±3dgt
	10.0A～49.9A: ±1.5%±5dgt
	50.0A～199.9A: ±2%±5dgt
	200A～600A: ±3%±5dgt
	601A～1000A: ±4%±5dgt
Secondary loop testing accuracy	0.01mA～10A: ±1%±3dgt (23℃±3℃, below 70%RH)
Variable ratio	3 variable ratio displays: (first and secondary loop real-time current measurement ; calculate the variable ratio at 5A of secondary loop and 10kV-YY of transformer 10kV/380V); the maximum transformation ratio is 1:10 million (1.0K7)
Data storage	3000 sets, press key HOLD to maintain data and automatically numbered storage (data won’t lose in power off or battery replacement)
Line voltage	Below 60KV line test (with 5 insulation rods operation)
Data retention	Press key HOLD key to maintain data, shown by HOLD , and then press HOLD to cancel maintaining.
Data access	Enter data access mode by pressing key HOLD+ key POWER
Overflow display	Over-range overflow function: shown in “OL A”
No signal indication	“No signal” will be shown when the host fails to receive signal
Automatic shutdown	15 minutes after boot, meter automatically shuts down
Battery voltage	When battery voltage is lower than 4.8V, battery voltage is shown in low symbol to remind battery replacement
Meter mass	Host: 240 g (with battery) High voltage clamp: 335g (with battery) Low voltage clamp: 170g (optional) the total mass of meter: 2.5kg (including insulation rod and battery)
External disturbance	No particularly strong electromagnetic field; without 433MHz and 315 MHz interference
Working temperature and humidity	-25℃～45℃; below 80%Rh
Storage temperature and humidity	-10℃～60℃; below 70%Rh
Insulation rod dimension	φ32mm, 1m/piece (5pieces,standard configuration)
Low voltage current clamp lead	Standard 2m
Insulation strength	High voltage clamp: AC100kV/rms (between the 5th insulation rod and high voltage current clamp core) Host and low voltage clamp: AC1000V/rms
Structure	Anti-drip type Ⅱ (high voltage detector)
Accessories	Clamp: 1 piece; receiver: 1 piece; current clamp: 1 piece; disc: 1 piece; RS232 communication wire: 1 piece; meter box: 1 piece; insulation rod (1m): 5 pieces; battery (alkaline battery AAA): 8 pieces

Application

Selection Guide

Model

Main Functions

Range

Clamp size

Wireless transmission Max

Transformation ratios

Data storage

Line Voltage

MEWOI1500 MEWOI1500_副本80.jpg

Measure First and Secondary Loop current,variable ratio and leakage current

High voltage clamp: 0.1mA～1000A

Low voltage clamp: 0.01mA～10A

High voltage clamp: φ48mm

Low voltage clamp: φ30mm

30m

1:10million

3000sets

<60KV

MEWOI1500C MEWOI1500c_副本80.jpg

Measure First and Secondary Loop current,variable ratio,phase,polar,ratio difference,angle difference and leakage current online testing

SPECIFICATION

Function	High and low voltage first and secondary loop current, variable ratio, polarity, phase difference, current leakage online test; current on both sides of transformer, variable ratio online monitoring
Power supply	DC6V alkaline dry battery (1.5V AAA×4), continuous working for 30 hours
Test mode	Clamp CT
Transmission mode	Wireless transmission, the maximum distance of straight line transmission is about 30m
Display mode	LCD: 128dots×64dots; blue backlight function
LCD dimension	Display domain: 44mm×27mm
Meter dimension	Host: width, height, thickness75mm×170mm×30mm High voltage clamp: width, height, thickness 76mm×255mm×31mm Low voltage clamp: width, height, thickness 63mm×160mm×23mm
Clamp dimension	High voltage clamp: φ48mm Low voltage clamp: φ30mm
Sampling rate	About 2 times/second
Measurement scope	High voltage clamp: 0.1mA～1000A Low voltage clamp: 0.01mA～10A
Resolution	High voltage clamp: 0.1mA Low voltage clamp: 0.01mA
Shift	Automatic shift
One loop testing accuracy 23℃±3℃, below 80%RH	0.1mA～10.0A: ±1%±3dgt
	10.0A～49.9A: ±1.5%±5dgt
	50.0A～199.9A: ±2%±5dgt
	200A～600A: ±3%±5dgt
	601A～1000A: ±4%±5dgt
Secondary loop testing accuracy	0.01mA～10A: ±1%±3dgt (23℃±3℃, below 70%RH)
Variable ratio	3 variable ratio displays: (first and secondary loop real-time current measurement ; calculate the variable ratio at 5A of secondary loop and 10kV-YY of transformer 10kV/380V); the maximum transformation ratio is 1:10 million (1.0K7)
Data storage	3000 sets, press key HOLD to maintain data and automatically numbered storage (data won’t lose in power off or battery replacement)
Line voltage	Below 60KV line test (with 5 insulation rods operation)
Data retention	Press key HOLD key to maintain data, shown by HOLD , and then press HOLD to cancel maintaining.
Data access	Enter data access mode by pressing key HOLD+ key POWER
Overflow display	Over-range overflow function: shown in “OL A”
No signal indication	“No signal” will be shown when the host fails to receive signal
Automatic shutdown	15 minutes after boot, meter automatically shuts down
Battery voltage	When battery voltage is lower than 4.8V, battery voltage is shown in low symbol to remind battery replacement
Meter mass	Host: 240 g (with battery) High voltage clamp: 335g (with battery) Low voltage clamp: 170g (optional) the total mass of meter: 2.5kg (including insulation rod and battery)
External disturbance	No particularly strong electromagnetic field; without 433MHz and 315 MHz interference
Working temperature and humidity	-25℃～45℃; below 80%Rh
Storage temperature and humidity	-10℃～60℃; below 70%Rh
Insulation rod dimension	φ32mm, 1m/piece (5pieces,standard configuration)
Low voltage current clamp lead	Standard 2m
Insulation strength	High voltage clamp: AC100kV/rms (between the 5^th insulation rod and high voltage current clamp core) Host and low voltage clamp: AC1000V/rms
Structure	Anti-drip type Ⅱ (high voltage detector)
Accessories	Clamp: 1 piece; receiver: 1 piece; current clamp: 1 piece; disc: 1 piece; RS232 communication wire: 1 piece; meter box: 1 piece; insulation rod (1m): 5 pieces; battery (alkaline battery AAA): 8 pieces

Clamp: 1 piece; receiver: 1 piece; current clamp: 1 piece; disc: 1 piece; RS232 communication wire: 1 piece; meter box: 1 piece; insulation rod (1m): 5 pieces; battery (alkaline battery AAA): 8 pieces