SUMMARY
SNV308.1 series overhead type Fault Indicator system is based on the Sensor that through CT get the (6KV-50KV) lineâ??s current signal, through smart computer chip(IC) by program calculating, Analysis ,judge the short circuit or ground fault. When Sensor detect the fault happen, then the Fault indicator warn the manager through turn red flag, and shine 3 color ultra-led. It is good for power managing user to find the fault happen reason and place, then fast solve the problem and make the power restore.
*SNV308.1 Fault Indicator with the aid of the remote control PDA(SNV306.1), User can read, reset the indicatorâ??s setting parameter, and can read the online real time current etc
*SNV308.1 Fault Indicator with the aid of the professional control terminal equipment(SNV309.1) and Web server, it can achieve to remote read and manage the Fault indicator state on times.
There are two channels for reading and managing the remote fault indicators. One is through GSM mobile phone SMS command control. Second is user computer software control. Power managing user, can get the fault indicator information on times
DESCRIPTION
SNV series indicators suitable for overhead lines network under a 50KV, for remotes short circuit &Earth fault indicator, through measuring the current of a conductor cable, to judge the fault on the power lines according to the change of current, grounding fault, and the fault state, real time current, battery voltage and other information. is uploaded to the remote server, which provides reliable data for the various types of fault diagnosis and location of overhead lines
Function character
a.real time measurement of three-phase on line currentï¼?
b.Detection and judgment of short circuit faultï¼?
a)support the judgment of the threshold fault current, short circuit faultï¼?
b)supports Judgment of mutated incremental currents delta for short-circuit faultsï¼?
c)supports the judgment of the percentage of short circuit faults that can be set by the percentage of mutated currents(*already canceled this judgment)ï¼?
d)support for reclosing ident ificationï¼?
c.Detection and judgment of grounding faultï¼?
d.Data Upload functionï¼?
a)periodically upload real-time online current, zero sequence current, and battery voltageï¼?
b)Upload the fault status, the fault elimination status and the fault current value in real timeï¼?
Function display
Flag state
1) Normally, Flag is on blanket position. Every 3 hours, Flag will reset one times for avoiding un-fault turn to red flag.
2) When short circuit fault happen, it will turn to red flag state; After reaching reset time or when the line current restore, Fault indicator will turn back to blanket state;
3) when the earth fault happen, it will turn to red flag state. It will be automatically turn back blanket state when line power off and current restore, or wait until reach reset time.
Fault indicating Led lightï¼?
1) short circuit permanent fault indicating: Six piece 3-color led will shine flash red color, and four times, every 2 secondï¼?And turn to red flag at same timeã??
2) short circuit temporary fault indicating: Six piece 3-color led will shine flash green color, and four times, every 2 secondï¼?And turn to red flag at same timeã??
3) Earth Fault indicatingï¼?Six piece 3-color led will shine Blue color, and four times, every 2 second. And turn to red flag at same time.
yellow state Led lightï¼?
Battery voltage too lowï¼?Shine 1 time, every2second
Battery voltage lowï¼? shine 2 time, evey2second
Wireless setting state: shine 4 times, every 2 second