With the development of modern technology, the electricity system faces an increasing risk of electricity theft, and outlaws (commonly known as larceny rats) try to control the electricity system by introducing completely new larceny technologies, threatening the security of the electricity system and affecting the economic efficiency of the power supply companies. In this regard, greater efforts must be made to monitor the use of electricity, to learn about common technologies for the theft of electricity, to apply new technologies to prevent the theft of electricity, and to safeguard the economic interests and social benefits of power companies。
Causes of electricity theft
1. Lack of a well-developed regulatory system for monitoring;
2. Deficiencies in counter-piracy technology;
3. Inadequate oversight and poor supervision。
Methods and means of electricity theft that are common in electric surveillance
1. Stealing electricity from electrical meters
I know there's four lines on the meter, one, two, three, four from the left to the right. One, two, one, one, three, the other. There are two conditions for the rotation of the meter: currents in the current circle and rated voltage at both ends of the voltage circle。
There are ways to keep it going
Method one: there's a small, active series between one or two ends, and you can fix one end of its screw a little bit looser, and separate them, that is, break the voltage of the voltage wire and stop the watch. Of course, it's the simplest and the easiest to find, too obvious。
Method ii: the standard electrical meter connection is the first end line and the third zero line. We know that there is a connection between the three and four, and we just have to get three lines of fire, zero lines of zero, and make a reliable ground line at home, and break the original zero line, which is usually called a fire, and then the surface will not move, and we just have to restore the zero line when we want it to move. This method is characterized by secrecy and simplicity and, in the event that the watch is found to remain intact for long periods of time, a small power light bulb is usually attached between home fires, which is not apparent from the outside. It is difficult to find out because there are too many users and it is not possible to open the watch boxes regularly。
Method of prevention: installation of leak protection, which, whenever used, jumps. But the leak protection is too easy to break or be broken。
2. Stealing electricity from electrical meters
It's usually the way to open a meter. It's a lot of things. I'm talking about a few changes
I. Change the motion ratio of the counter, usually the small gear from the calculator snail, not many teeth, but at the rate you want to reduce. There's a possibility of a bite. It's more reliable to use a high-turned watch, like 2100/kwh, and to replace low-turned counters with its counters, like 720/kwh, and then count is the one/3 of the actual electricity.
The number of the counters is approximately 1/10 of the actual electricity used, using a line of approximately 15 centimetres of paint, which is the same size as the current wire, from within the table and on the current wire. If the amount of electricity used is small and not concentrated, it is possible to try to adjust the screws within the table with a magnetic gap, which will be slow to fall back in the air, which is about 15 w。
The adjunct to the question of lead seals ... With a small modification of the clock clock, or a needle, carefully growing along the line in the lead seal, so that it may not be difficult to extract it, and finally, when reloading, the lead will be taped lightly with a flat-mouth plier, without damaging the handwriting on it。
3 - continue stealing electricity from the meter structure
The usual method of theft of electricity from the general meter was previously described, and one more was presented。
Those who use this method first need the necessary electrician base to be flexible, and it is even more striking if they understand its principles and use it on large current meters with sensors。
According to the principles of the meter, during normal working hours, the current ring consumes part of the energy, with a voltage at both ends, depending on the size of the current. This approach is to use this。
Preparation of a self-propelled transformer with a capacity not less than 2kva, which is too small to be burned and ineffective, secondary voltage requires 3-8v, on the three ends of the transformer (“0” line, public end, secondary end), one activity plug at the “0” line and the public end (no error in marking the end of the fire), to lower the voltage at the second end and the “0” line than at the public end (if not switch the secondary pump)。
When used, make sure that the plugs are inserted in the right position, i. E., the public end line, and that the secondary end is connected to the fire line at a certain point in front of the electrical scale with a sufficiently long lead, so that the sequence of the connection does not cause personal injury!
As a result of the reverse voltage of the current wire, the meter will operate in reverse direction, depending on the size of the subvoltage, at a speed of 2 to 5 kwh. Using this method, all links in the circuit must be in good contact, otherwise the effect will be affected. Don't be negative
1. Relocation of metering equipment against electricity theft
The transfer of metering equipment to counter the theft of electricity is the transfer of end-to-end measuring points to transform stations through the power provider, subject to the relevant regulations, and the deployment of high-voltage metering equipment to transform stations, thus facilitating the identification and prevention of illegal electrical theft by separating specific and complete circuits from regular circuits。
2. Measurement box dedicated to protection against theft
It's said that one foot higher and one foot higher. The prevention of electricity theft requires constant development and dynamic updating, active adaptation to changing technologies for electricity theft, and improved levels of prevention technology to effectively counter illegal electricity theft. In the case of the third-phase power user, in order to effectively prevent the theft of electricity, it is generally necessary to install a fully sealed measuring protection box, lock the box, or install an electrical security device, which does not allow other illegal persons to approach, to prevent the illegal theft of electricity through double protection. On the contrary, if some large customers have larger power, they can be provided with transformers on their own, in a manner and by means of the installation of specialized high-pressure measuring boxes and the configuration of dry combination sensors in the measuring boxes, thus meeting the goal of preventing theft and raising the level of protection against theft
3. Introduction of protection against theft
The use of electricity is subject to constant absorption and introduction of advanced equipment, in which the technology of prevention of theft is constantly being updated and developed, for example, by assuming electrical alarm equipment, depressometers, etc., and by mobilizing remote monitoring systems for dynamic monitoring of power systems, constant monitoring of the operational status of electrical measuring equipment, which automatically sends warning signals and gives timely feedback on changes in electrical currents and voltages, etc., in measuring equipment when there are any anomalies or irregularities in the equipment。
4. Closed circuit system port, guide line entry
An attempt could be made to protect the conductor from the security of the electrical system itself by sealing its different ports and bringing the corresponding conductor of the system inside the safety tank, thereby preventing the unlawful acts of the illegal larceny of electricity and blocking the end of the circuit system。
5. Installation of multifunctional smart meters
By analysing routine electrical theft, most illegal electrical thefts are aimed at locking eyes into electro-energy measuring equipment, starting with the electro-measuring equipment itself, increasing the effort to optimize the electro-energy meters, giving active attention to the functioning of the meters, and introducing multi-functional meters to the extent possible, using their extraordinary measuring and automated protection against theft. Unlike normal electromechanical devices, multifunctional meters are integrated into higher-end, more advanced technologies that can properly protect the electrical meters against reversals, achieve routine operation of electrical meters, effectively control short-circuit electrical problems, and have false seal markings, and any unlawful damage and tearing can be clearly identified, and the installation of multifunctional electromechanical meters can actively assist in the identification of electrical thefts and meet the goal of prevention。
The important thing is to say three times that, although there are inherent flaws in smart meters and technology is used to steal electricity, we should know clearly that stealing electricity is illegal and that there are some security risks in the operation of stealing electricity. So, normally, it's better for everyone to pay the electricity bill!
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Long salvatore's dsz331-system 3
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