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MEWOI-JYZ-HW Overhead live line fault indicator, fault passage indicator(FPI),Permanent Fault,Transient Fault,Earth Fault
Introduction
MEWOI-JYZ-HW Overhead Line Fault Indicator is usually used in 5~38KV (can be customized by 44KV, 69KV and 110KV ) overhead line power distribution network to monitor and detect short-circuit and earth fault. The fault signal is indicated by three ultra-bright blinking LEDs with 360º sight. The indicator can be mounted under live conditions with the help of an adapter and a hot stick. The parameters such as trip current, reset time,blinking interval, etc., can be read and adjusted by a bidirectional wireless tool. Permanent fault, transient fault and battery low voltage alarm can be distinguished and indicated separately by 3 different ultra-bright blinking LEDs. And the earth-fault can be indicated by two alternating different ultra-bright blinking LEDs. |
Permanent Fault: Red ultra-bright blinking LED. |
Transient Fault: Green ultra-bright blinkingLED. |
Earth-fault: Red and Green ultra-bright LEDs blinking alternately. |
| Low Battery Warning: Yellow ultra-bright blinking LED |
Parameter Adjust: The parameters can be read and adjusted by bidirectional wireless tool. |
| Power Supply: The indicator can take power from overhead lines, with lithium battery as backup. |
Technical Specification
Short-circuit Trip Current (Phase to Phase | 50~1200A adjustable, 1A step, 150A default |
| Trip Current Delay | 40, 80, 120, 200ms, can be set during production |
| Indication Unit Reset | 1. Manual by magnet. 2. Time reset:adjustable,1second step,24h default,max.48h 3. Auto delay reset after repower,1 second step,30s default max 5min,only for permanent fault |
| Protection Class & IK Class | IP68 |
| Internal Type Test | IEEE495-2007 |
| Operation Temperature Range | -40~+70℃ |
| Power Supply | Lithium battery type AA 3.6V/9Ah, replaceable |
| Battery Life | 10 years |
| Weight | 600g |
| Dimensions | Diameter: 93mm Height: 170mm |
| Accuracy Read&Set Parameter from Indicator | 0A~300A ±3A,300A~800A ±1% &433MHz in indicators to read and set parameter |
| Cable Diameter Ranges | 6mm~42mm |
| Blinking Frequency | 10 per minute, adjustable |
| Max. load/fault Current | 1200A |
System Frequency (Hz)Self-adjusting | 50/60 Hz & 60s self-adjusting |
| Current withstand | 31.5KA/4s |