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INTRODUCTION
Click to download: MEWOI1500 Color Page
Click to download: MEWOI1500 Manual
MEWOI1500 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. |
Applications
SELECTION GUIDE
Wireless High Voltage Current Transformation Ratio Test meter
Click "Blue"marked model No. to view the detailed specification
| Model | Main Functions | Range | Clamp size | Wireless transmission Max | Transformation ratios | Data storage | Line Voltage |
MEWOI1500 | 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 | Measure First and Secondary Loop current,variable ratio,phase,polar,ratio difference,angle difference and leakage current online testing |
Technical Specification
Function | High and low voltage first and secondary loop current, variable ratio, 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 | 2 times/second |
Measurement scope | High voltage clamp: 0.0mA～1000A, Low voltage clamp: 0.00mA～10A |
Resolution | High voltage clamp: 0.1mA, Low voltage clamp: 0.01mA |
Shift | Automatic shift |
One loop testing accuracy 23℃±3℃, below 80%RH | 0.0mA～10.0A: ±1%±5dgt |
10.0A～49.9A: ±2%±5dgt | |
50.0A～199.9A: ±3%±5dgt | |
200A～600A: ±4%±5dgt | |
601A～1000A: ±5%±5dgt | |
Secondary loop testing accuracy | 0.00mA～10A: ±1%±5dgt (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) |
Safety Provisions | IEC1010-1, IEC1010-2-032, Pollution Class 2, CAT Ⅲ(600V), IEC61326(EMC standard) |
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