System overview
Distribution fault automatic location system
As an automatic and efficient fault detection and positioning system, the system consists of a line fault indicator, a data relay station and a background monitoring system and supports distributed data acquisition, wireless remote transmission, centralized management and analysis of instant notification.
Once used together with the onsite fault detection and indication device, the background fault location software can quickly and accurately locate the grounding and short circuit faults. The fault location and fault occurrence time can be accurately displayed within a few minutes after the fault occurs. At the same time, the fault location result will be sent to the mobile phone of the designated personnel so that the maintenance personnel can arrive at site quickly to eliminate fault and restore power supply. Achieve line load current monitoring and meet the basic requirements of distribution network operation management.
indication device, the background fault location software can quickly and accurately locate the grounding and short circuit faults. The fault ore pow
Characteristics
n Quick positioning
The fault section can be accurately located in 1-2 min, reducing the patrol check time by more than 80%;
n Accurate positioning
Accuracy of short-circuit fault and earthing fault is 99% and 90%;
n Accurate positioning
Load current acquisition accuracy is 3%; load curve is formed automatically for query;
n High cost performance
Save more than 80% costs compared with traditional automation construction scheme; a wider coverage by the same investment amount;
n Advanced criterion
It judges short-circuit fault based on load current self-adaptive intelligent mutation method, and grounding by external applied signal method; it judges polarity relationship between ground electric field variation and capacitance current mutation according to grounding phase fault transient moment;
n Convenient construction
No need to modify primary equipment.
