Line Fault Indicator

Line Fault Indicator image

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Quick Details

Product Name:

Line Fault Indicator

Model NO.:

AT-C112F

Trademark:

L&R or according to customers requirements

Transport Package:

Standard Export Package

Specification:

ISO9001: 2008

Origin:

Wenzhou, Zhejiang, China

Product Details

product application
The line fault indicator is a device which is used in the transmission line of power transmission and distribution lines, power cables and switches. Once the line failure, patrol line personnel can use the indicator alarm display, quickly determine the fault point, troubleshooting. Completely change the blind line in the past, off the line to find the fault of the backward approach.
working principle
1,Grounding detection principle
Sampling instant grounding capacitance current in the first half wave voltage and grounding moment of the first half wave, the phase, when the sampling capacitor current grounding moment and the mutation is greater than a certain value and the voltage and grounding moment of the first half wave phase, while the wire of voltage is reduced, determine the grounding line otherwise, the line did not ground.
2,Short-circuit detection principle
According to the short circuit phenomenon; in the short circuit instantaneous current sudden change, the protective action power cut as the action basis.
Applicable line:
(1) for 6-35KV overhead bare conductors and insulated conductors
(2) for 3-35KV cable lines
(3) for 110-500KV single supply, dual power lines
installation position
(1) the exit of the substation or the opening and closing station to judge the fault in the station or outside the station
(2) the branch or section where the fault is located at the trunk and branches
(3) the connection between the cable and overhead line and cable, indicating the fault on the overhead line or cable line
(4) switch cabinet or box change, branch box
(5) the user enters the high voltage line, used to judge the fault of the user
Characteristic
(1) fault indication: when running normally, the window is white; when the short circuit fault occurs, the window is red.
(2) automatic reset: after the power supply is restored, the fault indicator will be reset automatically, and the reset time can be selected by the customer according to the line environment, the line length and the Department requirements.
(3) live loading and unloading: live loading and unloading is extremely simple, does not affect the line operation.
(4) provides technical means for finding hidden fault points.
(5) quickly identify the fault line and fault point, shorten the time of trouble shooting.
(6) accurate indication instantaneous fault, is advantageous in the elimination power supply hidden danger.
(7) to avoid the impact of the traditional multiple pull line to the power equipment.

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