• The function and principle of current transformer

    The function and principle of current transformer

    The role of current transformers: the currents vary greatly in the lines of power generation, transformation, transmission, distribution and power consumption, ranging from several amperes to tens of thousands of amperes. In order to facilitate measurement, protection and control, it needs to be co... read more

    05-02-2021 Industry News
  • Shunt

    Shunt

    The shunt is used to measure the DC current. It is made according to the principle that the DC current produces voltage at both ends of the resistance when it passes through the resistance. It is made of insulating ceramics with uniformly distributed holes. The protective gas from the welding torch... read more

    18-11-2020 News
  • Shunt principle

    Shunt principle

    A shunt is actually a resistance with very small resistance. When a direct current passes through it, a voltage drop is generated for the display of a direct current ammeter.The DC ammeter is actually a voltmeter with a full scale of 75mV.DC ammeter and shunt are used together.For example, the curr... read more

    18-11-2020 News
  • Basic knowledge of electronic connectors

    Basic knowledge of electronic connectors

    The basic structural components of the electrical connector include: 1.Contact The contact is the core part of the connector to complete the electrical connection function. The contact pair is generally composed of a male contact and a female contact, and the electrical connection is completed by t... read more

    18-11-2020 News
  • Relay main product technical parameters

    Relay main product technical parameters

    Rated operating voltageRefers to the voltage required by the coil when the relay is working normally. Depending on the type of relay, it can be either an AC voltage or a DC voltage.2. DC resistanceRefers to the DC resistance of the coil in the relay, which can be measured by a universal meter.3. Pu... read more

    18-11-2020 News
  • How to judge the quality of European-style terminal blocks?

    How to judge the quality of European-style terminal blocks?

    At present, the specifications of the terminal blocks on the market are similar. Whether the products are good or bad, we first look at the appearance. Generally, the plastic surface is smooth and free of burrs and no gaps. The color is pleasing to the eye without yellowing and dullness; the pins a... read more

    18-11-2020 News
  • Relay technology upgrades help industry development

    Relay technology upgrades help industry development

    The labor force of relay production is relatively intensive. Developed countries have shifted the general-purpose relay industry to manufacturing countries with low labor costs such as China. The early domestic enterprises are mostly foreign-funded enterprises or their OEM enterprises, so the inter... read more

    18-11-2020 News
  • Introduction to the types of relays

    Introduction to the types of relays

    In our power facilities, we often use a kind of electrical appliance, which is a relay. It is used in the automatic control circuit. It is a kind of switch for current operation. It has the functions of conversion circuit, automatic regulation and safety protection. Relays have different types depe... read more

    18-11-2020 News
  • Classification and function of automotive relays

    Classification and function of automotive relays

    Automotive relays are generally electromagnetic or solid. The electromagnetic relay says that the coil is energized to generate a magnetic field that attracts the electric shock and fits the static contact to turn on the circuit. The current mostly used in the solid state generates electrons throug... read more

    18-11-2020 News