• What are the selection methods of solid state relays

    What are the selection methods of solid state relays

    Selection method of solid state relay:1. When selecting solid state relays used on printed circuit boards with low current specifications, since the lead terminals are made of high thermal conductivity materials, the soldering should be carried out under the conditions of a temperature less than 250... read more

    10-11-2021 Industry News
  • What is the role of the intermediate relay

    What is the role of the intermediate relay

    The intermediate relay is a relay. Its principle is the same as that of an AC contactor. It is composed of a fixed iron core, a moving iron core, a spring, a moving contact, a static contact, a coil, a terminal and a shell. When the coil is energized, the moving iron core acts to pull in under the a... read more

    04-11-2021 Industry News
  • Notes on the matters needing attention when using small high-power relays

    Notes on the matters needing attention when using small high-power relays

    Relays are commonly used devices in automatic control systems, used to connect and disconnect circuits to form automatic control and remote control circuits. Whether as the core component of the relay signal system, or the interface component of the electronic or computer signal system, it plays an... read more

    25-10-2021 News
  • What is a relay? What is a relay?

    What is a relay? What is a relay?

    What is called a relay, a relay is an electrical control device, which is an electrical appliance that causes the controlled quantity to undergo a predetermined step change in the electrical output circuit when the input quantity (excitation quantity) changes to the specified requirements. When we ... read more

    20-10-2021 News
  • How to use miniature high power relays? Introduction to the use of miniature power relays

    How to use miniature high power relays? Introduction to the use of miniature power relays

    A power relay is a device that can produce a jump in one or more electrical output circuits when the input (or excitation) meets certain prescribed conditions, and can be used in a neutral point directly grounded system, as The directional element of zero sequence current protection. It has a wide ... read more

    13-10-2021 News
  • Why install a trip and lockout relay? What's the role

    Why install a trip and lockout relay? What's the role

    Locking refers to "self-locking", which automatically locks the state of the relay after it is energized and keeps the loop connected, even if the control current is turned off at this time, it will not change its state.That is to say, when the power is turned on and the control current is turned of... read more

    09-10-2021 News
  • Benefits of a Single Phase Relay

    Benefits of a Single Phase Relay

    Single-phase relay protection consists of a transformer and its load protection system. A single-phase relay has an output stepped by a control circuit that is normally a switching device such as a solenoid or a diode. This control is usually an alternating current source and controls the voltage t... read more

    26-09-2021 News
  • Mini Current Transformer - For Low Voltage Electrical Appliances

    Mini Current Transformer - For Low Voltage Electrical Appliances

    Great Electrical Co, Ltd. is an Official Partner of the Academy of Model Engineers (AMEA) which is an international organization for model engineers. It is one of the oldest and the largest electric model and transformer producers in China. Great Electrical Co, Ltd has been in business since 1830 ... read more

    24-09-2021 News
  • What is the difference between safety relay and general relay?

    What is the difference between safety relay and general relay?

    1. Larger appearance The dimensions of safety relays are different from ordinary relays, and safety relays are larger. 2. Modules instead of components The safety relay is a module, not an electronic component like an ordinary relay. 3. Color The safety relay has its own color, which is generally ... read more

    17-09-2021 News