TW201910789A - Detection method of short circuit fault points for street light equipment - Google Patents

Abstract

The invention relates to a detection method of short circuit fault points for street light equipment. The detection method comprises the following steps of disconnecting a power terminal of a street light switch when a plurality of street lights are shorted; replacing a burning fuse of the street light switch with an elevated floodlight; reconnecting the power terminal to make the elevated floodlight and a short circuit fault point form a closed loop; measuring a current value passing through the elevated floodlight by an ammeter; and taking at least two measurement points to measure the current value of the at least two measurement points by an ammeter. If the current value of one of the at least two measurement points is zero and the current value of the measurement point in front of the measurement point having the current value of zero is same as the current value of the elevated floodlight, it indicates that the short circuit fault point of the street light equipment is located between the at least two measurement points.

Description

Method for detecting short-circuit fault point of street lighting equipment

The invention relates to a method for detecting a short-circuit fault point of a street lamp lighting device, in particular to a method capable of quickly catching a fault point of a street lamp, and allowing a maintenance person to carry a simple device to detect a position where a short circuit occurs in the street lamp, The detection cost is low and it takes less time, so it is practical for residents, passers-by and maintenance personnel.

According to the street lights, it is very important to maintain the safety of nighttime homes, prevent small people and strengthen the safety of the people. Whether in the metropolitan area, the country, the highway, the provincial road, the county road or the street, street lights will be set up to protect the night return. The property and personal safety of the people can make the people have no worries when walking or driving at night, and in order to achieve better lighting effects, they will not cause glare and lightness to driving or pedestrians, so the brightness and illumination angle of the street lamps and Arrangement, etc. need to be evaluated and designed. Since the street lights need to be turned on for about 10~12 hours every day, and the wind and rain are exposed outside, the circuit of the street lamp will gradually wear out or aging, and when the street lamp is not bright, it will cause inconvenience and danger to passers-by. In addition, it will also affect the quality of life of nearby residents, so it is very important to quickly troubleshoot the problem to restore normal lighting.

The faults that cause the street lamp line usually have the following conditions: power failure (including high-voltage line failure, transformer failure), line failure (including short-circuit or open-circuit fault), and component failure (including street light switch failure, street light failure), etc. This judgment method usually makes a preliminary judgment from the light and dark situation of a whole row of street lamps. If the power supply terminal fails, the whole row of street lamps will not be able to be turned on, and only one or two street lamps will not light; if it is a component failure, For example, the fault of the street light switch will also cause the whole street light to be turned on. Therefore, whether it is the power supply or the destroyer, the maintenance personnel only need to check from the transformer at the power supply or the extinguisher near the power supply. If the problem is detected, if there are only one or two street lights in the whole row of street lights, there is a big possibility that the lamp of the street lamp will be burnt. This can be directly repaired for the unlit street lamp; the disconnection situation in the line fault will make A section of street light does not illuminate because the street light that has been broken is not illuminated by the street lamp after the fault point. Which can not start street light, and replace.

Furthermore, the most difficult to repair fault can be said to be a short circuit situation, and the fault situation presented is the same as the transformer fault and the destroyer fault, which causes the whole row of street lights to be off, and will cause related equipment such as transformers or extinguishers. Burned, and, the short-circuit point can not directly detect which street lamp occurred from the power supply terminal, so it is the most difficult to determine the fault situation. At present, the detection technology for short-circuit is a two-point detection method, a series fuse (or no fuse switch). The detection method and the power supply detection method of the xenon lamp are mainly used. However, the three methods require a relatively long time to perform the detection, and even the money cost has a lot of overhead.

In this way, how to provide a detection method that shortens the time to find the short-circuit fault point, so that the safety of the residents nearby and the people who pass through can be guaranteed, and the pressure on the maintenance time of the maintenance personnel is also reduced, which is considered by the inventor. And the direction.

Nowadays, the inventor is considering that the above-mentioned existing detection method of short-circuit fault point of street lamp still has many defects in actual implementation, so it is a tireless spirit, and is supported by its rich professional knowledge and years of practical experience. And improved, and based on this, the present invention was developed.

The main object of the present invention is to provide a method for detecting a short-circuit fault point of a street lamp illumination device, which provides a simple and rapid detection method for a short-circuit fault that is most difficult to detect in a street lamp illumination device, which uses a current limiting resistor instead of a burnt-out fuse. The fuse is the overload fuse of the street light switch, so that the short circuit and the current limiting resistor form a closed loop, thereby finding the position of the short circuit light.

In order to achieve the above-mentioned implementation object, the present invention relates to a method for detecting a short-circuit fault point of a street lighting device, and the detecting step comprises the first step: when a plurality of street lamps of the street lamp lighting device are short-circuited, first disconnect one of the light switches of the street light switch. Step 2: Replace one of the fuses of the street light switch with a spotlight due to a short circuit; Step 3: Turn the power supply back on, and the floodlight and a short circuit fault point form a closed loop; Step 4: Use an ammeter Measuring the current value flowing through the floodlight; and step 5: taking at least two measuring points between the plurality of street lamps, and measuring the current value of the measuring point with the ammeter, if the current value of one of the measuring points is zero The current value of a measuring point is the same as the current value of the spotlight before the current value of the measuring point is zero, and the short-circuit fault point of the street lighting device is located between the two measuring points.

In an embodiment of the invention, each street lamp is electrically connected in parallel.

In an embodiment of the invention, the power terminal is an output of a transformer.

In an embodiment of the invention, the power terminal has a fuse link.

In an embodiment of the invention, the ammeter is a hook ammeter.

In an embodiment of the invention, the street light switch is further electrically connected to the igniter.

The object of the present invention and its structural and functional advantages will be explained in conjunction with the specific embodiments according to the structure shown in the following drawings, so that the reviewing committee can have a more in-depth and specific understanding of the present invention.

Referring to FIG. 1 to FIG. 4 , a method for detecting a short-circuit fault point of a street lamp lighting device comprises the following steps: when a plurality of street lamps (11) of the street lamp lighting device (1) are short-circuited, first Disconnect one of the light source switches (12) from the power supply terminal (13); Step 2: Replace the street light switch (12) with one of the fuses (121) by short-circuiting one of the fuses (121); Step 3: Make the power supply The terminal (13) is re-conducted, and the floodlight (14) and a short-circuit fault point (111) form a closed loop; step 4: measuring the current value flowing through the floodlight (14) by an ammeter (2); And step 5: taking at least two measurement points between the plurality of street lamps (11), and measuring the current value of the measurement points by the hook current meter (2), if the current value of one of the measurement points is zero, and Before the current value of the measuring point is zero, the current value of one measuring point is the same as the current value of the flood light (14), and the short circuit fault point (111) representing the street lighting device (1) is located between the two measuring points.

Wherein, the plurality of street lamps (11) of the street lighting device (1) are electrically connected in parallel between each street lamp (11), and the power terminal (13) is an output end of a transformer, and the input end of the transformer is The high voltage power is connected, and the power terminal (13) has a fuse chain, and the street light switch (12) is further electrically connected to the dot extinguisher (3), which can be used as a time control switch to activate the street light (11). The time is set, and when the time is up every day, it will automatically light up or go out.

In addition, the scope of the invention may be further exemplified by the following specific examples, which are not intended to limit the scope of the invention.

Please continue to refer to the first figure. The circuit of the street lighting device (1) of the present invention is a transformer that introduces a high voltage of about 6900 V from the high voltage side, and the transformer converts the high voltage into 110 V or 220 V, which is 110 V. Or 220 V will become the power terminal (13) of the street lighting device (1); the power terminal (13) will be connected to the street light switch (12), and the street light switch (12) will have a fuse (121) and a destroyer. (3) The setting, in which the eliminator (3) is usually used as a time-controlled switch, will illuminate or extinguish all the street lamps (11) connected to the street lighting device (1) at a specific time of day, with the current time setting in Taiwan. Usually, the time for lighting in summer is 6 pm every day, the time for extinction is 6 am; the time for non-summer lighting is 5:30 pm, and the time for extinction is 6:30 am.

A street lighting device (1) will connect a plurality of street lamps (11), usually covering a certain road segment or a certain area. The embodiment of the present invention is based on the jurisdiction of the Tai Po Service Office of the Tai Chi Chiayi District Office (Zengpu Main Line 151). West Point 1 ~ West Branch 40) for description, compare the detection process of the binary detection method, the isolated lamp power supply detection method, the tandem fuse detection method, and the spotlight detection method of the present invention.

Binary detection method:

The processing method of the binary detection method is implemented by the concept of "one divides into two"; please refer to the fifth figure. The actual operation method of the binary detection method is to first cut the fuse link of the transformer to isolate the power supply. The grounding line of the street lamp (11) is connected to the grounding line, that is, the grounding of the 151 West 1 and the West Branch 40 of the Zengpu trunk line respectively, to avoid the danger of electric shock when the maintenance personnel perform the shearing and jumper on the pole; After the completion of the operation, all the street lights (11) are separated from the middle point. The Zengpu trunk line 151 west minute 20 is divided into the first half and the second half as the intermediate point. The first half is the Zengpu trunk line 151 west minute 1~West branch. 20, the second half of the Zengpu trunk line 151 West points 21 ~ West Branch 40, maintenance personnel will cut the 151 West Branch 20 (1) jumper of the Zengpu trunk line, so that electricity will not be supplied to the second half;

Replace the fuse (121) of the street light switch (12) with a short-circuited fuse (121) and send it to the power supply. If the first half (Zengpu trunk line 151 west minute 1~west minute 20) is lit, it means the fault point is in the second half. 151 west of Pugan line 21~40); conversely, if the first half of the street light (11) is not lit, and the newly replaced fuse (121) is burned again, it indicates that the fault point is in the first half, and in actual operation, the first half The street light (11) is not illuminated, and the fault point is located in the first half;

So continue to cut the 151 West Point 10 (1) jumper on the Zengpu trunk line, and the Zengpu trunk line 151 West Branch 20 street light (11) jumper to pick up, that is, once again the Zengpu trunk line 151 West 1~ The West Point 20 is divided into the first half (Zengpu Main Line 151 West Branch 1~ West Branch 10) and the second half (Zengpu Main Line 151 West Branch 11~ West Branch 20), and replace the new street light switch (12) fuse (121) After being sent to the power supply, the street light (11) of the 151 West Branch 1 to West Branch of the Zengpu Main Line is bright, indicating that the fault point is between 151 West Point 11 and West Branch 20 of the Zengpu Main Line;

Then connect the jumper of the 151 West Point 10 of the Zengpu trunk line. The street lamp (11) of the 151 West Branch of the Zengpu trunk line is cut open. After the power is turned on, the fuse (121) of the street light switch (12) is burned. It indicates that the fault point is between the 151 West Point 11 and the West Branch of the Zengpu Main Line. Finally, the street light (11) of the 151 West Branch of the Zengpu Main Line is connected. The street light of the 151 West Branch of the Zengpu Main Line (11) After the jumper is cut, replace the fuse (121) of the street light switch (12) and send the power, the street light (11) of the 151 West Branch 1~West Branch of the Zhapu Main Line is bright, and the maintenance personnel can know the Zengpu Main Line 151. The short-circuit fault point (111) of the street lamp (11) of the West Branch 14.

Isolation lamp Power detection method:

The lampgear power supply detection method divides the street lamp (11) of the street lamp lighting device (1) into two independent circuits, as shown in the sixth and seventh figures, and the even-numbered street lamps (11) indicated by dotted lines are independent. In the sixth picture, the Zengpu trunk line 151 West, 2, West 20 and West 40 are represented, and the other circuit is composed of odd-numbered street lamps (11), which are normally powered and not in normal times. Under the influence of lighting requirements, only one set of street lamp (11) circuits can be activated to save half of the power supply, and when one of the circuits has difficulty in supplying power, it can immediately switch to another circuit to continue power supply, so that the whole process will not occur. The street lamps (11) are not lit and affect the safety of passers-by.

When all the street lamps (11) are not lit, the maintenance personnel can manually cut off the faulty circuit and separately illuminate the other group of street lamps (11) to provide the illumination of the road segment; The two-point detection method is used to gradually detect the faulty street lamp (11) circuit. First, the grounding line of the street lamp (11) is hanged at the two ends, that is, the 151 west branch 1 and the west minute 39 of the Zengpu trunk line are grounded respectively to avoid maintenance. When the personnel perform shearing and jumper on the utility pole, there is danger of electric shock; after the front operation is completed, all the street lamps (11) are separated from the middle point, and the Zengpu trunk line 151 west minute 19 is divided into the first half. In the first half and the second half, the first half is the 151 West Point 1~West Branch of the Zengpu Main Line, and the second half is the 151 West Point 21~West Point 39 of the Zengpu Main Line. The maintenance staff will turn the road of the 151 West Point 19 of the Zengpu Main Line (11 The jumper is cut so that the power is not supplied to the second half;

Replace the fuse (121) of the street light switch (12) with a short-circuited fuse (121) and send it to the power supply. If the first half (Zengpu trunk line 151 west minute 1~west minute 19) street light (11) is on, it means the fault point is in the street light. The second half of (11) (Zengpu trunk line 151 West points 21~39); conversely, if the first half of the street light (11) is not lit, and the newly replaced fuse (121) is burned again, it indicates that the fault point is in the first half, and In actual operation, the street lamp (11) in the first half is not illuminated, and the fault point is located in the first half;

Therefore, the street light of the 151 West Branch of the Zengpu Main Line (11) was cut and the jumper of the 151 West Branch of the Zengpu Main Line (11) was jumped back, that is, the 151 West Point of the Zengpu Main Line was once again 1~ West minute 19 is divided into the first half (Zengpu trunk line 151 West branch 1 ~ West branch 9) and the second half (Zengpu trunk line 151 West minute 11 ~ West branch 19), replace the new street light switch (12) fuse (121) After being sent to the power supply, the street light (11) of the 151 West Branch 1~West Branch of the Zengpu Main Line is bright, indicating that the fault point is between 151 West Point 11 and West Branch 19 of the Zengpu Main Line;

Then connect the jumper of the 151 West Point 9 of the Zengpu trunk line. The street lamp (11) of the 151 West Branch of the Zengpu trunk line is cut open. After the power is turned on, the fuse (121) of the street light switch (12) is burned. It indicates that the fault point is at 151 West Point 11, West Point 13 or West Branch 15 of the Zengpu Main Line. At this time, there are two ways to find the fault point. One is to continue to use the "two-point detection method" to pass the Zengpu trunk line 151. West Branch 13 street light (11) jumper cut, continue to try to send electricity for testing, you can complete the fault point test; another method is to check the three street lights (11) individually and whether the lamps are abnormal, Complete the fault point test. Of course, since the range of possible failures has been reduced to only three branches, the short-circuit fault point (111) can be easily found by any method, and the time spent is not much different.

Tandem fuse detection method:

The tandem fuse detection method, as shown in the eighth figure, is a series fuse or no fuse switch (4) on each street lamp (11). When a short circuit occurs, it can be connected to a fuse or a fuseless switch ( 4) Isolation failure, in the case of overload, only the fuses connected in series on the faulty street lamp (11) will be burnt, or the fuseless switch (4) will be disconnected, without affecting the normal operation of other street lamps (11), and maintenance The personnel can immediately judge the fault point by the line of the faulty street lamp (11) that does not light up to eliminate the fault.

Therefore, if each street lamp (11) of the 151 West Branch 1 to West Branch 40 of the Zengpu Main Line has a fuse or no fuse switch (4) connected in series, the short-circuit fault point (111) is located at the 151 West Branch of the Zengpu Main Line. The street lamp (11), when the fault occurs, only the lamps of the 151 West Branch 14 of the Zengpu trunk line will not light up, and the scope of the impact will not be extended to other street lamps (11). The maintenance personnel only need to split the street lamp (11). The troubleshooting of the lines and fixtures can be done in detail.

The spotlight detection method of the invention:

In the street lighting equipment (1) as a whole, the protection fuse for burning the appliance due to short-circuiting of the line is provided with two places, that is, the power fuse of the transformer and the fuse (121) of the street light switch (12), so The present invention replaces the power fuse of the transformer or the fuse (121) of the street light switch (12) with a floodlight (14). As far as the field working environment is concerned, since the power fuse of the transformer is on the high voltage side (6900 V or 12700 V) The position of the fuse (121) of the street light switch (12) is on the low voltage side of the transformer, that is, the power supply terminal (13), and its position is low, so it is recommended that the maintenance personnel replace the fuse of the street light switch (12). (121) is more convenient and safe.

When a street lamp (11) of the street lighting equipment (1) is short-circuited, the maintenance personnel will go to the site to test the 151 West Branch 1~West Branch 40 of the Zengpu Main Line. First, the power supply end of the street light switch (12) is required. Disconnected to ensure that no power is passed through the current line. The fuse (121) of the street light switch (12) is replaced by a flood light (14). The internal resistance of the flood light (14) can be used as a current limiting resistor. Use, the original street lamp (11) rated power is 400 W, the floodlight (14) is 500 W, the internal resistance is 96.6 Ω; in addition, the power terminal (13) is turned on again, the floodlight (14) and the short circuit The path of the fault point (111) forms a closed current loop, so that the floodlight (14) will be illuminated. As shown in the second figure, if the light is turned on, the floodlight (14) is not illuminated, ie The representative may be that other components are burned, and an open circuit is generated to block the power supply of the street lighting device (1); the current value flowing through the spotlight (14) is measured by an ammeter (2), and the measured current is 2.27 A, the ammeter (2) can use the hook ammeter (2) to directly hook the ammeter (2) onto the wire without removing any components of the street lighting device (1) or changing the line connection. The current is measured by direct measurement. Finally, at least two or more measurement points are taken on the street lamp (11) of the 151 West Branch 1 to West Branch of the Zengpu Main Line, and the current value of the measurement point is measured by the ammeter (2). As shown in the third figure, when the ammeter (2) measures the measurement point 1 and the measurement point 2, the current value is 2.27 A, but the current value of the measurement point 3 is 0 A, which represents the short-circuit fault point (111). Between the measurement point 2 and the measurement point 3, the maintenance personnel can detect that the short-circuit fault point (111) is located on the street light (11) of the 151 West branch of the Zengpu trunk line. This detection process is due to the current flow only. After the spotlight (14) and the short-circuit fault point (111), it is only necessary to find out which measuring point the starting current value is 0 A, that is, the short-circuit fault point that the current has been shunted by the previous street lamp (11) ( 111) Flowing through.

It can be seen that the detection method of the short-circuit fault point of the street lamp illumination device of the present invention is convenient to replace the fuse (121) by the floodlight (14), and it is not necessary to change the street lighting as the binary detection method and the barrier lamp power supply detection method. The circuit of the equipment (1) even eliminates the repeated process of trimming, wiring, power transmission, power-off, etc.; and the tandem fuse detection method requires a series fuse or no fuse on each street lamp (11). The switch (4), so the installation work takes a considerable amount of time, and the cost of components will be greatly increased, which will undoubtedly impose a huge burden on the local government.

In addition, the inventor further compares the time cost and the cost of the cost of the binary detection method, the power supply detection method for the isolated lamp, the tandem fuse detection method, and the spotlight detection method of the present invention; The "time required for installation or renovation" and "time required for accident handling" are divided into "salary" and "material fee". The comparison table is as follows.

Time cost comparison table:

Cost amount comparison table:

Therefore, it can be clearly seen from the two comparison tables that the spotlight detection method used in the detection method of the short-circuit fault point of the street lamp illumination device of the present invention can greatly reduce the time and money and the maintenance personnel can quickly Eliminate the problem of street lighting equipment (1), so that nearby residents or people passing by can have a safe and bright environment, and the cost of maintenance is also because the invention only needs to use the flood light (14), thus saving Many expenses do not have to have extra component overhead.

It can be seen from the above description that the present invention has the following advantages compared with the prior art:

1. The method for detecting the short-circuit fault point of the street lamp lighting device of the present invention replaces the fuse burned by the short-circuit in the original street lamp switch with a flood light, so that the short-circuit fault point of the spot light and the street lamp forms a closed current loop, and after re-conducting Let the current pass through the spotlight and the short-circuit fault point, and then take at least two measuring points to measure whether the current is the same as the current flowing through the spotlight. If the current value is 0 A from a certain measuring point, you can get Knowing that the current has flowed through the short-circuit fault point of the previous street light branch, the maintenance personnel can find the short-circuit fault point.

2. The method for detecting the short-circuit fault point of the street lamp lighting device of the present invention replaces the short-burned fuse with a floodlight, and then measures with an ammeter, so the maintenance personnel only need to use the spotlight and the ammeter to detect the position of the short-circuit fault point. The maintenance process is fast and time-saving. It can be directly measured without disassembling the components of the street lighting equipment or changing the line. The time cost and the amount of the cost are greater than the two-point detection method and the barrier lamp used earlier. The power supply detection method and the tandem fuse detection method can be used to provide a detection method that is convenient, fast, inexpensive, and capable of accurately detecting a short-circuit fault point.

In summary, the method for detecting a short-circuit fault point of the street lamp lighting device of the present invention can achieve the intended use efficiency by the above-disclosed embodiments, and the present invention has not been disclosed before the application, and has completely met the requirements. The provisions and requirements of the Patent Law.爰Issuing an application for a patent for invention in accordance with the law, and asking for a review, and granting a patent, is truly sensible.

The illustrations and descriptions of the present invention are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; those skilled in the art, which are characterized by the scope of the present invention, Equivalent variations or modifications are considered to be within the scope of the design of the invention.

(1) ‧‧‧Street lighting equipment

(11) ‧ ‧ street lights

(111)‧‧‧ Short circuit fault point

(12)‧‧‧ Street light switch

(121)‧‧‧Fuse

(13)‧‧‧Power terminal

(14)‧‧‧Spotlights

(2) ‧‧‧ ammeter

(3)‧‧‧Dusters

(4)‧‧‧Fuseless switch

First Figure: Original circuit diagram of a street lighting device in accordance with a preferred embodiment of the present invention.

Second: A replacement lighting circuit diagram of a street lighting device in accordance with a preferred embodiment of the present invention.

Third Figure: Schematic diagram of measurement point measurement of a preferred embodiment of the present invention.

Fourth Figure: A block diagram of a preferred embodiment of the present invention.

Fig. 5 is a circuit diagram of a binary detection method of the prior detection method of the present invention.

Fig. 6 is a circuit diagram (1) of the power supply detection method for the isolated lamp of the prior detection method of the present invention.

Figure 7: Circuit diagram of the power supply detection method for the isolated lamp of the prior detection method of the present invention (2).

Figure 8 is a circuit diagram of the tandem fuse detection method of the prior detection method of the present invention.

Claims (6)

A method for detecting a short-circuit fault point of a street lighting device includes the following steps: Step 1: When a plurality of street lamps of a street lighting device are short-circuited, first disconnect one of the power switches of the street light switch; Step 2: One of the fuses of the street light switch is replaced by a spotlight due to a short circuit burn; Step 3: The power supply end is re-conducted, and the spot light and a short circuit fault point form a closed loop; Step 4: measuring the flow through an ammeter The current value of the light projector; and step 5: taking at least two measurement points between the plurality of street lamps, and measuring the current value of the measurement point by the current meter, if one of the current points of the measurement point If the current value of the measurement point is zero, the current value of the measurement point is the same as the current value of the light source, and the short circuit fault point of the street lamp illumination device is located between the two measurement points. The method for detecting a short-circuit fault point of a street lighting device according to the first aspect of the patent application, wherein each of the street lamps is electrically connected in parallel. The method for detecting a short-circuit fault point of a street lighting device according to the first aspect of the patent application, wherein the power terminal is an output end of a transformer. The method for detecting a short-circuit fault point of a street lighting device according to claim 1, wherein the power terminal has a fuse link. The method for detecting a short-circuit fault point of a street lighting device according to claim 1, wherein the ammeter is a hook-type ammeter. The method for detecting a short-circuit fault point of a street lighting device according to the first aspect of the patent application, wherein the street lamp switch is further electrically connected to the killer.