Sampling resistors are current sampling and voltage sampling. For current sampling, a resistor with a smaller resistance is connected in series, and for voltage sampling, a resistor with a larger resistance is connected in parallel. This type of resistor is divided according to the function of the p... read more
Phase unbalance in a three-phase system occurs when one or more of the line-to-line voltages in a three-phase system do not match. Three-phase power systems and equipment are designed to operate with balanced phases lines. Line-to-line voltages in three-phase circuits typically differ by a few volts... read more
Industrial control relay is a common relay in the industry. It is a current-limiting protection device with delayed action. It generally refers to thermal relays. Thermal relays are protective appliances used for overload protection of motors or other electrical equipment and electrical lines. The l... read more
Transformers are one of the most commonly used electrical devices. This is why we can use electronic devices the way we do. Even before you know it, you can rely on these instruments in your daily life. Before starting the application, we will mainly try to get answers to two important questions: wh... read more
Commonly referred to as resistance spot welding, spot welding involves welding two or more metal sheets together using a combination of heat and pressure. Specifically, the heat from spot welding comes from an electric current that heats each metal surface to the point that they fuse together. For o... read more
What role does the relay play in the application? In principle, the relay is an automatic switch element with isolation function, which is widely used in relay communication, remote control, telemetry, automatic control, mechatronics and power electronic equipment. A very important control element.R... read more
There are many types of relays, so how do we classify them? Below we classify the magnetic latching relays according to their working principle, product usage, external dimensions, protection features, contact loads.Classify according to the principle of action of relays.Electromagnetic Relay.Under ... read more
Generally speaking, relays are composed of two parts: contacts and coils, so the graphic symbols in the relay circuit diagram also include two parts: a set of contact symbols represents the contact combination; and a rectangular box represents the coil; When not many circuits are relatively simple, ... read more
The relay that controls the original is to control the closing action by generating the minimum current for the pull-in action. Generally in use, the given current needs to be slightly larger than the pull-in current, and the single-phase relay can work normally and stably when this standard is reac... read more
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