INTRODUCTION
MEWOI1100D Zinc Oxide Arrester Leakage Tester has unique features of automatic plug function, specially designed and manufactured for high voltage current measurement; use the latest CT technology and integrated mask digital technology; composed of special high voltage detector, wireless receiver and high voltage insulation rods. Wireless transmission can receive the measured data by penetrating storey building barriers or 30 meters.The integrated design of clamp and lead zone of MEWOI1100D Zinc Oxide Arrester Leakage Testerensures uninterrupted year-round high precision, high reliability and high stability test. In general cases, the leakage current of Zinc Oxide Arrester should be less than 500uA. Can judge the operation of lightning arrester lightning arrester leakage according to the test, if measured lightning arrester leakage current is too large, more than 500uA, excluding the system voltage is too high, then the arrester may have dirt or moisture or aging, the larger the leakage current, more serious of dirt or moisture or aging. The leakage current to be a importance reference to the maintenance department to find the power transmission problem, or to check whether an arrester should be unstalled to under testing in lab or replace, avoid unnecessary replacement. |
TECNICAL SPECIFICATION
| Function | High precision and resolution measurement of leakage of Zinc Oxide Arresters |
| Power Supply | DC6V Alkaline Dry Battery (1.5V AAA X 4) |
| Test Mode | Clamp CT, integral approach |
| Transmission Mode | Wireless transmission, the maximum distance of straight line transmission is about 30m |
| Display Mode | 4 bit LCD display, with backlight function |
| LCD Dimension | 47mm×28.5mm |
| Meter Dimension | HV detector: 68mm×245mm×40mm; Receiver: 75mm×170mm×30mm |
| Clamp Dimension | 33mm |
| Sampling Rate | 2 times/second |
| Measurement Scope | AC 0.000mA-30.00mA(50/60Hz Automatic identification) |
| Resolution | 1uA |
| Shift | Full automatic shift |
| Accuracy | ±2%±5dgt (23C±5C, Below 80%RH) |
| Data Memory | 99 sets, memory process is shown by MEM , full storage is shown by blinking FULL |
| PEAK value maintaining | Automatically maintain the high test value, in usual testing mode, press key HOLD till the lighting of PEAK, that is, start PEAK to maintain this function. |
| Data Hold | In usual testing mode, press HOLD key to keep data, shown by “HOLD” |
| Data Access | “MR” indication, can access to all data |
| Overflow Display | Over-range overflow function: shown in “OL A” |
| No Signal Indication | “no- -” is shown when receiver does not receive the dynamic display of signal transmission |
| Automatic Shutdown | 15 minutes after boot |
| Battery Voltage | When battery voltage is lower than 4.8V, battery voltage is shown in low symbol to remind battery replacement |
| Meter mass | Detector: 335g (with battery), the total mass of meter: 2.5kg (including insulation rod and battery) |
| Working Temperature and Humidity | -25C-40C; below 80%Rh |
| Storage Temperature and Humidity | -10C-60C; below 70%Rh |
| Insulation Rod Dimension | φ32mm, 1m/piece (5pieces) |
| Insulation Strength | AC 100kV/rms (between the 5th insulation rod and high voltage current clamp core) |
| Structure | Anti-drip type II |
| Accessories | Clamp: 1 piece; receiver: 1 piece; meter box: 1 piece; insulation rod (1m): 5 pieces; battery (alkaline battery AAA): 8 pieces |
Field Application
TECNICAL SPECIFICATION
| Function | High precision and resolution measurement of leakage of Zinc Oxide Arresters |
| Power Supply | DC6V Alkaline Dry Battery (1.5V AAA X 4) |
| Test Mode | Clamp CT, integral approach |
| Transmission Mode | Wireless transmission, the maximum distance of straight line transmission is about 30m |
| Display Mode | 4 bit LCD display, with backlight function |
| LCD Dimension | 47mm×28.5mm |
| Meter Dimension | HV detector: 68mm×245mm×40mm; Receiver: 75mm×170mm×30mm |
| Clamp Dimension | 33mm |
| Sampling Rate | 2 times/second |
| Measurement Scope | AC 0.000mA-30.00mA(50/60Hz Automatic identification) |
| Resolution | 1uA |
| Shift | Full automatic shift |
| Accuracy | ±2%±5dgt (23C±5C, Below 80%RH) |
| Data Memory | 99 sets, memory process is shown by MEM , full storage is shown by blinking FULL |
| PEAK value maintaining | Automatically maintain the high test value, in usual testing mode, press key HOLD till the lighting of PEAK, that is, start PEAK to maintain this function. |
| Data Hold | In usual testing mode, press HOLD key to keep data, shown by “HOLD” |
| Data Access | “MR” indication, can access to all data |
| Overflow Display | Over-range overflow function: shown in “OL A” |
| No Signal Indication | “no- -” is shown when receiver does not receive the dynamic display of signal transmission |
| Automatic Shutdown | 15 minutes after boot |
| Battery Voltage | When battery voltage is lower than 4.8V, battery voltage is shown in low symbol to remind battery replacement |
| Meter mass | Detector: 335g (with battery), the total mass of meter: 2.5kg (including insulation rod and battery) |
| Working Temperature and Humidity | -25C-40C; below 80%Rh |
| Storage Temperature and Humidity | -10C-60C; below 70%Rh |
| Insulation Rod Dimension | φ32mm, 1m/piece (5pieces) |
| Insulation Strength | AC 100kV/rms (between the 5th insulation rod and high voltage current clamp core) |
| Structure | Anti-drip type II |
| Accessories | Clamp: 1 piece; receiver: 1 piece; meter box: 1 piece; insulation rod (1m): 5 pieces; battery (alkaline battery AAA): 8 pieces |
Clamp: 1 piece; receiver: 1 piece; meter box: 1 piece; insulation rod (1m): 5 pieces; battery (alkaline battery AAA): 8 pieces