Many apartments have single-phase meters. By design, the models are quite different. First of all, it should be noted that devices with 2–4 terminals are produced. Counters can be connected to the network through various devices. In this case, you need to take into account the features of the shield, as well as the brand of modification. In order to understand this issue in more detail, it is necessary to consider specific schemes.
Two-tariff modifications
The connection diagram for a two-rate single-phase meter involves the use of a relay with a conductivity of 6.5 microns. In this case, the rectifier is connected directly to the terminals. Directly, the dynistor is used of an expansion type. In many ways, this helps to cope with network congestion.
If we consider modifications to 10 A, then the transistor is used only broadband type. Insulators are installed with a winding. If we consider counters at 20 A, then in this situation an open transistor will be required.
Three tariff meters
The connection diagram of this type of meter includes field effect transistors. The relay is standardly used at 6.5 microns. First of all, the terminals are cleaned to connect the device. Then a dynistor with high current conductivity is selected. If we consider a standard meter at 15 A, then the stabilizer can not be used. When connecting a model, it is important to pay special attention to insulators. The output contacts of the transistor must be closed.
Two terminal model diagram
The connection diagrams of the counter on two terminals involve the use of a high-conductivity relay. In order to deal with network congestion, various dinistors are used. The most common today are considered expansion devices. They are found on the market with and without insulators. If we consider a modification of 10 A, then the transistor is more appropriate to use a single-pole type. The modification is directly connected via a rectifier that connects to the relay.
If we talk about 20 A counters, then in this case you can not do without a semiconductor thyristor. First of all, this allows us to solve the problem of overheating of the relay. It is also used to increase the accuracy of the counter. Modifications of 25 A are also on the market. To connect devices, open transistors are used. The conductivity of the relay must be at least 7 microns. In this case, the dinistor is used as an expansion type. To combat electromagnetic interference, rectifiers are used.
Connecting devices to three terminals
The connection diagram of the three-terminal meter includes two rectifiers. The relay in this case is used with low conductivity. Due to this, the accuracy of the measurement of the device. The expander is mounted on a transistor. For this, output contacts are used. If we consider modifications to 15 A, then the dinistor is used as an expansion type. In this case, the relay is applied at 4 microns. If we talk about 20 A meters, then the expander can be installed open. However, the relay will need 6 microns.
Four terminal counters
The connection scheme of the electric meter (single-phase) involves the use of expansion dinistors. Directly transistor is used open type. The current conductivity parameter must be at least 6.5 microns. If we talk about 5 A counters, then in this situation you can not do without a quality rectifier. However, the transistor is first attached. If we talk about 10 A counters, then the dynistor can be used without insulators. Relays are connected via output contacts.
Connection of the Mercury counter
The connection diagram of a single-phase meter "Mercury" includes an expansion type dynistor. To combat overloads in the network, not only transistors are installed, but also stabilizers. In this case, the expander is used with a winding. In order to fix the relay, clamps are used. The current conductivity parameter must be at least 4.5 microns. In order to prevent electromagnetic interference from affecting the measurement accuracy, insulators are used.
ACE 2000 Model
The ACE 2000 single-phase electronic meter wiring diagram contains an expansion dinistor. The main modification problem is considered to be a high output overload parameter. In this regard, the measurement accuracy of the meter is not very high.
In order to improve the parameters of the model, open type rectifiers are used. To fix an element to the panel, conductors are used. Transistors for connection can be taken unipolar or bipolar type.
Model NIK 2102
The connection diagram of the electric meter (single-phase) NIK 2102 involves the use of a relay of 4 microns. The dinistor is most often selected open type. The output overload indicator in this case is 10 A. The expander is attached to the relay according to the scheme. The transistor is allowed to use a single-pole type. A stabilizer for connecting the meter is not required. The protection system he has installed is reliable.
Model ME172
The connection diagram of a single-phase meter of this brand contains various transistors. If we consider the option with a single-pole modification, then the relay is applied at 3 microns. In this case, the dinistor will need an expansion type. In this case, the output voltage parameter will lie in the region of 10 A. Also, a circuit with a bipolar transistor should be considered. In this case, the dinistor will need an analog type. The rectifier is installed directly behind the transistor. The relay is used on the network at 6 microns. The output overload indicator does not exceed 15 A.
Model MTX1A10
A single-phase meter connection diagram contains a single-pole transistor. The relay behind it is set to 3.5 microns. Directly, the stabilizer is installed with insulators. The relay is connected to the panel through the output contacts. Also, the meter can be connected via bipolar transistors. The stabilizer is not used in this case. The dinistor for the relay is selected open type. Current conductivity averages 6.5 microns.
Model ED 2500
The connection diagram of a single-phase meter involves the use of a 3.3 micron relay. In this case, the transistor is used open type. In some cases, stabilizers are used. It is also important to note that it is allowed to install single-pole transistors. In this case, the dinistor is used as an expansion type. The current conductivity parameter averages 5.6 microns. As a rule, the threshold overload is not more than 15 A. If we talk about bipolar transistors, they are used very rarely. In this case, the problem most often is to reduce the accuracy of measurements.
Model ACE 300
The connection scheme for a single-phase meter of this type implies the use of a 3 micron relay. Directly transistor is used single-pole type. The dinistor is most often used with insulators. In some cases, a linear type stabilizer is installed.
However, it should be noted that it is quite expensive in the market. If we consider circuits with bipolar transistors, then in this case the dynistor is installed open type. Directly the relay for the counter is selected at 7 microns. In this case, the output overload indicator lies in the region of 20 A.