RU108851U1 - ELECTRIC POWER METERING AND DISTRIBUTION COMPLEX (OPTIONS) - Google Patents

Abstract

 1. A complex of electricity metering and distribution, containing one or more one- or three-phase electric energy meters, connected by their inputs to power lines, which are simultaneously the main supply circuits of the meters, and connected via an interface to the meter reading module, which is connected by its other interfaces with a radio communication node and a cellular communication modem, characterized in that a guaranteed power source is inserted into it, connected to a backup power source by its input, and the output is connected to the backup power inputs of the meters and the power inputs of the rest of the equipment, the battery connected to the guaranteed power unit. ! 2. A power metering and distribution complex containing one or more one- or three-phase electric energy meters connected by their inputs to power lines, which are simultaneously the main supply circuits of the meters, and connected via an interface to a meter reading module, which is connected by other interfaces with a radio communication node and a cellular communication modem, characterized in that a guaranteed power source is inserted into it, connected to a backup power source by its input, and an output connected to the backup power inputs of the meters and power inputs of other equipment, a battery connected to the guaranteed power supply unit, an RS-485 to Ethernet converter module, the power input of which is connected to the guaranteed power supply output, and the RS-485 interface is connected to the module interface of the same name collection of meter readings. ! 3. The complex

Description

The utility model relates to electrical engineering and can be used to measure and distribute electrical energy in single-phase and three-phase AC circuits in various sectors of the economy. The technical result is to expand the functionality.

A device for accounting and distribution of energy is described in the description of the patent for utility model No. 100857, class. IPC Н02В 1/14, publ. 12/27/2010, characterized in that the case with the hinged door has power supply terminals and distribution network terminals, an electric energy meter, an automatic differential switch, an overvoltage limiter, a magnetic starter, a current transformer, and a power limiter and a removable internal panel are installed in the case with a sealing device, which closes access to all devices located in the housing of the metering and distribution of electricity in three-phase networks, cr IU terminals for wiring the distribution network.

Closest to the claimed utility model is an automated system for accounting and control of electricity consumption, described in the description of the patent for utility model No. 543449, class. IPC G01R 11/56, Н02J 13/00, publ. 05/10/2006, including digital single-interface meters, each connected via its input via a communication channel to an intermediate device, a time synchronization unit of meters, a modem for communication through a local telephone exchange (GTS) and a backup communication channel modem with a sales organization, the intermediate device being made in in the form of a switch-converter, consisting of a control unit, a switching unit with a select and a signal conversion unit, a time synchronization unit of counters, modems of the main channel for communication via GT and a backup channel for communication with the sales organization with their outputs connected to the inputs of the switching unit and the control unit, the output connected through a select to the input of the switching unit, the outputs of which are individually connected to the inputs of the GTS modems, the backup communication channel and time synchronization unit, as well as the input of the signal converter block associated with the outputs of the system counters.

The described devices have the disadvantage that they do not have the ability to remotely read data from meters when the voltage in the measured line is disconnected, as well as the ability to read data via the Ethernet interface and others.

When creating the proposed utility model, the task was to develop a complex of electricity metering and distribution that allows for efficient and uninterrupted operation of electricity metering and the transfer of meter readings to an automated system (AC), to provide the flexibility of constructing a structure using various communication interfaces available to the consumer, and to provide remote power line management, as well as reduce the cost of creating a speaker.

The problem is solved by introducing into the composition of the complex of metering and distribution of electricity additional equipment in various combinations.

At the same time, in the electric power metering and distribution complex, containing one or three-phase electric energy meters, connected by their inputs to power lines, which are simultaneously the main supply circuits of the meters and connected via an interface to the meter reading collection module, which is connected to the radio communication unit by its other interfaces , and a cellular modem, introduced:

- a guaranteed power source, connected via its input to the backup power source, and connected to the backup power inputs of the meters and power inputs of the rest of the equipment,

- a battery connected to a guaranteed power unit,

- an RS-485 to Ethernet converter module, the power input of which is connected to the output of the guaranteed power unit, whose RS-485 interface is connected to the interface of the meter reading module of the same name,

- current transformers with their outputs connected to the current inputs of the meter, and the inputs included in the break of the power line between the source and consumer,

- switching equipment, connected by its power contacts in series with current transformers in a power line circuit between a source and a consumer, control inputs connected to remote control outputs of electric meters, and remote signal outputs connected respectively to remote signal inputs of meters.

To reduce the cost of communication equipment, one of the meters can be replaced by a multifunctional meter containing communication equipment.

The technical result, consisting of:

- in increasing the communication capabilities of the complex,

- providing access to meter data regardless of the presence of voltage in the measured power line,

- the possibility of metering electricity by the meter in its line, regardless of the availability of backup power,

- the possibility of remote control of power lines is achieved precisely through the introduction of new elements and their links with other technical means of the complex.

The utility model is illustrated by drawings (Fig.1 - Fig.6), which presents various options for implementing a complex of metering and distribution of electricity.

The complex of metering and distribution of electricity (option 1), presented in Fig. 1, contains from one to n one or three-phase electricity meters 1, connected by their inputs to power lines, which are simultaneously the main supply circuits of the meters, and connected via an interface to the collection module data from counters 2, which is connected with a radio communication node 3 and a cellular modem 4 with its other interfaces, a guaranteed power supply 5, connected to a backup power source by its input, and connected to an output connected to the backup power inputs of the counters 1 and the power inputs of the radio communication node 3 and the cellular modem 4, the battery 6 connected to the guaranteed power unit 5.

The power metering and distribution system shown in Fig. 2 (option 2) contains, in addition to the nodes included in option 1, an RS-485 to Ethernet 7 converter module, the power input of which is connected to the output of the guaranteed power unit 5, and the RS interface -485 is connected to the eponymous interface of the module for collecting data from counters 2.

Figure 3 presents version 3 of the utility model, in which to the already described option 1, a real-time clock 8 is added, synchronized by GLONASS / GPS systems accurate time signals, connected by their power input to the guaranteed power supply 5, and the output to the collection module data from counters 2.

Option 4 of the utility model (Fig. 4) contains the same blocks as option 1, in which current transformers 9 are added, connected by outputs to the current inputs of the respective counters 1, and the inputs included in the break of the power line.

Option 5 (figure 5) consists of a set of hardware included in option 4, which additionally includes switching equipment 10, included in the break of the power line between the source and consumer, control inputs connected to the telecontrol outputs of the electricity meters 1, and tele-alarm outputs - to the tele-alarm inputs of the counters 1.

In option 6, presented in Fig.6, one of the counters 1, for example, counter 1-1 is a multifunctional counter, which includes a module for collecting data from meters, a cellular modem and a communication module via Ethernet. In addition, a real-time clock 8 can be connected to it.

The complex accounting and distribution of electricity, presented in figure 1, works as follows. Counters 1-1 ... 1-n record electricity and measure other parameters of electricity each in its own power line. The request from the control point of the automated system (AC) of the metering and distribution of electricity, which comes through any of the communication channels formed by the communication equipment (radio node 3, cellular modem 4) and transmitted to the counter through the data collection module 2. Readings from the counters 1-1 ... 1-n go to the corresponding inputs of the data acquisition module 2, from the outputs of which, after a corresponding conversion, the information goes to communication equipment 3, 4 and through it to an automated system for accounting and distribution of electricity.

If the voltage disappears in any power line, the meter measuring the parameters of this line 1-1 ... 1-n, and all other equipment receive power through a guaranteed power source 5 from the backup power line or from the battery 6. The meter generates a message about the voltage drop in the line below norms and at the next survey sends to the control center of the AU.

If the backup power fails and the battery is completely discharged, the electricity metering is not interrupted, since the meters 1-1 ... 1-n receive power from the measured power line.

To synchronize the time of the internal clock of the counters, either by a command from the AC or after a predetermined time, the module for collecting data from the counters 2 requests the exact time from the real-time clock 8, which is synchronized by the GLONASS / GPS system's exact time signals and transfers it to the counters 1.

Serially connected current transformer 9 and switching equipment 10 of any of the counters 1-1 ... 1-n are connected to the power line break between the source and the consumer. At the same time, counter 1 records electricity, measures other parameters of the power line, and also automatically or by commands from the AS monitors the state of the switching equipment and controls it, and accordingly turns the consumer on or off.

To reduce equipment costs, one of the meters, for example 1-1, performs the functions of a data acquisition module and is combined with communication equipment. Information is exchanged with speakers through this counter. Otherwise, this option works similarly to the previous ones.

Claims (6)

1. A complex of electricity metering and distribution, containing one or more one- or three-phase electric energy meters, connected by their inputs to power lines, which are simultaneously the main supply circuits of the meters, and connected via an interface to the meter reading module, which is connected by its other interfaces with a radio communication node and a cellular communication modem, characterized in that a guaranteed power source is inserted into it, connected to a backup power source by its input, and the output is connected to the backup power inputs of the meters and the power inputs of the rest of the equipment, the battery connected to the guaranteed power unit. 2. A power metering and distribution complex containing one or more one- or three-phase electric energy meters connected by their inputs to power lines, which are simultaneously the main supply circuits of the meters, and connected via an interface to a meter reading module, which is connected by other interfaces with a radio communication node and a cellular communication modem, characterized in that a guaranteed power source is inserted into it, connected to a backup power source by its input, and an output connected to the backup power inputs of the meters and power inputs of other equipment, a battery connected to the guaranteed power supply unit, an RS-485 to Ethernet converter module, the power input of which is connected to the guaranteed power supply output, and the RS-485 interface is connected to the module interface of the same name collection of meter readings. 3. A complex of electricity metering and distribution, containing one or more one- or three-phase electric energy meters, connected by their inputs to power lines, which are simultaneously the main supply circuits of the meters, and connected via an interface to a meter reading module, which is connected by other interfaces with a radio communication node and a cellular communication modem, characterized in that a guaranteed power source is inserted into it, connected to a backup power source by its input, and the output is connected to the backup power inputs of the meters and the power inputs of the rest of the equipment, the battery connected to the guaranteed power supply unit, real-time clock synchronized by GLONASS / GPS systems accurate time signals, connected by its power input to the guaranteed power supply, and the output to the module collecting data from counters. 4. A complex for metering and distribution of electricity, containing one or more one- or three-phase electric energy meters, connected by their inputs to power lines, which are simultaneously the main supply circuits of the meters, and connected via an interface to a meter reading module, which is connected by other interfaces with a radio communication node and a cellular communication modem, characterized in that a guaranteed power source is inserted into it, connected to a backup power source by its input, and with an output connected to the backup power inputs of the meters and power inputs of the rest of the equipment, the battery connected to the guaranteed power supply unit also additionally introduces current transformers connected to the current inputs of the respective meters by their outputs and included in the power line break. 5. A complex for metering and distribution of electricity, containing one or more one- or three-phase electric energy meters, connected by their inputs to power lines, which are simultaneously the main supply circuits of the meters, and connected via an interface to the meter reading module, which is connected by other interfaces with a radio communication node and a cellular communication modem, characterized in that a guaranteed power source is inserted into it, connected to a backup power source by its input, and the output connected to the backup power inputs of the meters and power inputs of the rest of the equipment, the battery connected to the guaranteed power supply unit also additionally introduced current transformers connected to the current inputs of the respective meters by their outputs and included in the break of the power line, and switching equipment, by their power contacts included in the break of the power line between the source and the consumer, its control inputs connected to the outputs of the remote control I electricity meter and remote signaling their outputs respectively connected to the inputs of remote signaling counters. 6. A complex of electricity metering and distribution, containing one or more one- or three-phase electric energy meters, connected by their inputs to power lines, which are simultaneously the main supply circuits of the meters, characterized in that a guaranteed power source is inserted into it, connected to its input with a backup power source, and an output connected to the backup power inputs of the meters and power inputs of the rest of the equipment, the battery connected to the guaranteed unit On power supply, current transformers are also introduced, connected to the current inputs of the respective meters by their outputs, and the inputs included in the power line break, and switching equipment, included by their power contacts in the power line break between the source and the consumer, connected to the telecontrol outputs by their control inputs electricity meters, and with its telesignalization outputs connected respectively to the telesignalization inputs of the meters, moreover, one of the counters It is a multi-meter, which includes a data acquisition module from the meters, the cellular modem and Ethernet communication module interface.