optical fiber communicable for underground cable display the fault
signals using LED flashing lights
TYHD-1 panel type fault indicator(be called indicator for short
below) is mainly used for indicate short circuit fault and earth
fault on the On/Off panel, and used for output wireless signal.
The principle is micro-controllers with little power consumption,
micro-controllers can automatically identify fault signals from
short circuit indicator and earth indicator, They can display the
fault signals using LED flashing lights on the spot and output the
signals by wireless.
The appearance of the indicator :
Specification of installing:
L1 is connect with A live line
L2 is connect with B live line
L3 is connect with C live line
L4 is connect with Earth line
V1.08 is the version number of software
Fault indicate function:
The lights on the L1,L2,L3,and Earth buttons will flash with a
5-minutes interval,if the short circuit fault or earth fault
occur.This can be returned to the original condition automatically
according to the time delay set by the factory or by pressing
button of “Reset/Test” manually.the low battery capacity of the
indicator is show on the panel by wireless,The indicator of low
battery voltage will flash at the same time(with 4 seconds
interval).
Reset/Test function:
Restore:press the “Reset/Test” button slightly,then restore after
all lights have light.
Self-checking:
| Address | black point means the corresponding LED is on |
| L1(1) | L2(2) | L3(4) | E(8) |
| 1 | ● | ○ | ○ | ○ |
| 2 | ○ | ● | ○ | ○ |
| 3 | ● | ● | ○ | ○ |
| 4 | ○ | ○ | ● | ○ |
| 5 | ● | ○ | ● | ○ |
| 6 | ○ | ● | ● | ○ |
| 7 | ● | ● | ● | ○ |
| 8 | ○ | ○ | ○ | ● |
Function:
1)Show short circuit fault and earth fault locally.
2)Self-reset ,the interval time of self-reset can be set before
delivery from factory (The default is 12 hours).
3)Reset or self-test manually.
4)Set the addresses of the indicators
Performance index:
The distance of fiber communication:
1.Typical value:5m;Max:10m
2. Ambient temperature:-35℃～70℃
3. Action times :more than 2000
4. Indicator power supply mode :built-in 3.6V/2Ah lithium cell.
5 .Battery can be changed.
There is type test report for it, test items as following:
Type Test Items
| 1. appearance and structure 2.function 3. electrical device
performance 4.low temperature performance 5.high temperature
performance 6.alternating temperature humidity7.vibrationendurance
8.incline drop test 9. electrical device life 10. static
electricity and elecro-discharge immunity test 11.radio frequency
electromagnetic field radiated immunity test 12.surge impact
immunity test 13. power frequency magnetic field immunity test. 14.
Adjacent interference test 15.short-circuit withstand impact test
16. fire hazard test 17. power consumption test 18. protection
grade test 19. gripping strength test of grip structure. |
