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MEWOI1550C Wireless High/Low Voltage CT/(Transformer) ratio tester/phase angle tester
INTRODUCTION
MEWOI1550C Wireless H/L Voltage Transformation Ratio Tester special designed and manufactured for online measurement of current transducer, transformer primary current and secondary current, transformation ratio, phase angle,phase and polarity judgment below 35kV in operation. The product is composed of primary current clamp (high voltage detector), secondary current clamp, host machine, high voltage insulation rod, monitoring software, communication cable, etc. the test data of primary current clamp adopt wireless to transmit which transmission distance of 100 meters. The current clamp is made of high performance perm alloy with magnetic shielding technology, which is almost free from the influence of the external magnetic field, ensuring the long time uninterrupted monitoring of high accuracy, high stability and high reliability. The host LCD display clear, with large storage space, can store 3000 groups of data. the high voltage detector connect with 5pcs insulation rod, which can use for high voltage line current measurement of the wire with insulation skin below 60KV or bare wire below 35KV, high voltage current clamp have unique automatic plug and pull structure, by pressing or pulling out the insulation rod can be easy to clamp or withdraw the tested wire, saving time and more effective. It is widely used in substations, power plants, and industrial and mining enterprises, inspection stations, electrical maintenance departments for current detection and electrical field operations. The insulation rod is handiness, and has the characteristics of moisture-proof, high temperature resistance, impact resistance, bending resistance, high insulation, scalable and so on. Insulation level 110KV. The monitoring software has the functions of online real-time monitoring and historical query, dynamic display, maximum, minimum and average indication, alarm value setting and alarm indication, and with historical data reading, accessing, saving, printing and other functions. MEWOI1550C Wireless H/L Voltage Transformation Ratio Tester, at the same time: H/L voltage clamp current meter, high altitude current telemeter and other products functions. |
TECHNICAL SPECIFICATION
Function | H/L voltage current transducer, transformer primary and secondary circuit current, transformation ratio, polarity angle difference, phase difference adjustment |
Power Supply | DC6V alkaline batteries (1.5V AAA × 4) |
Test Mode | Clamp CT |
Primary HV Current Clamp Test Accuracy | Range:0.0A～800A；Resolution：0.1A; Accuracy：±0.5%FS (23℃±3℃，below 70% RH，the detected is in the center position of the clamp); |
Primary Flexible Current Clamp Test Accuracy | Range:0.0A～3000A；Resolution：0.1A; Accuracy：±1.0%FS |
Secondary Current Test Accuracy | Range：0.00mA～5A；Resolution：0.01mA；Accuracy：±0.5%FS |
Transformation Ratio Measurement Range | 1～500 |
Transformation Ratio Resolution | 0.1 |
Angle Error Test Accuracy | Range：0～360°；Accuracy：±3° |
Shift | Automatic shifting |
Sampling Rate | 2 times/second |
Data Storage | 3000 groups, Press the left arrow key to keep the data and store automatically (Power down or replace the battery will not lose data) |
Data Hold | Press HOLD key to hold data, press “HOLD” key once again cancel the hold function |
Data Access | Press HOLD key+ POWER key enter in o data access mode |
Overflow Display | Exceed measure range overflow function: “OL” symbol display |
No Signal Indication | When the receiver has not received transmit signal, dynamic display “no- -”symbol |
Automatic Shutdown | 15 minutes after boot up, the meter shuts down automatically without any operation |
Battery Voltage | When battery voltage is lower than 5.2V±0.3V, low battery voltage symbol will display and remind to replace battery. |
Display Mode | LCD：128dots×64dots； with backlight function, suitable for dark places |
LCD Size | 44mm×27mm |
Host Size | 78mm×165mm×42mm； |
Primary HV Current Clamp Size | Jaw Size: φ48mm; Out Shape Size: 76mm×255mm×31mm |
Primary Flexible Current Clamp Size | Jaw Size: φ200mm; Out Shape Size: 200mm×245mm×13mm |
Secondary LV Current Clamp Size | Jaw Size: φ8mm; Out Shape Size: 137mm×40mm×19.5mm |
Primary Current Clamp Transmission Distance | Wireless transmission distance 100m |
Current Clamp Connection Cable Length | 2M |
Meter Weight | 5kg (include insulation rod and battery) |
External Interference | Should avoid extremely strong electromagnetic fields, avoid 315MHz, 433MHz same-frequency signal interference |
Working Temperature | -25℃～45℃；below 80%rh |
Store Temperature | -10℃～60℃；below 70%rh |
Insulation Rod Dimension | Ф32mm, 1m/pcs×5pcs |
Insulation Rod Withstand Voltage | 110kv |
Insulation Streigth | Host and Detector：AC1000V/rms(between the shell and screws) |
Selection Guide
| Model | Main Functions | Range | Clamp size | Wireless transmission Max | Transformation ratios | Data storage | Line Voltage |
| Primary/Secondary Loop current,turn ratio,polarity and phase adjustment | High voltage clamp: 0.0A～800A Low voltage clamp: 0.01mA～5A | High voltage clamp: φ48mm Low voltage clamp: φ8mm | 100m | 1:500 | 3000sets | <35KV |
| Primary/Secondary Loop current,turn ratio,phase angle,polarity and phase adjustment | High Voltage Primary:0.0A～800A Flexible Clamp Primary:0.0A～3000A | High voltage clamp: φ48mm Flexible Clamp:φ200mm Low voltage clamp: φ8mm | 100m | 1:500 | 3000sets | <35KV |
