Ningbo Baocheng Electronics CO.,LTD

How to choose  GP Relay  correctly, which is divided into 4 steps, I hope to help everyone. 1. Measuring contact resistance Use the resistance file of the universal meter to measure the normally closed contact and the dynamic point resistance, the resistance value should be 0; and the resistance value of the normally open contact and the moving point is infinite. This makes it possible to distinguish between a normally closed contact and a normally open contact. 2. Measuring coil resistance The resistance of the power relay coil can be measured by the universal meter R×10 Ω file to determine whether the coil has an open circuit. 3. Measure the pull-in voltage and pull-in current Find adjustable power supply and ammeter, input a set of voltage to the power relay, and connect the current meter in the power supply circuit for monitoring. Slowly increase the power supply voltage. When you hear the power relay pick up, record the pull-in voltage and pull-in current. For accurac

Issues to consider when selecting a  Power Relay : 1. First understand the necessary conditions 1 control circuit power supply voltage five steps, the maximum current that can be provided; 2 voltage and current in the circuit being controlled; 3 The controlled circuit needs several sets and what forms of contacts. When a power relay is selected, the power supply voltage of the general control circuit can be used as the basis for selection. The control circuit should be able to provide sufficient operating current to the power relay, otherwise the power relay pull-in is unstable. 2. After consulting the relevant data to determine the conditions of use, you can find the relevant information and find out the model and specification number of the power relay that requires five steps. If there is a power relay on hand, you can check whether it can be used according to the data. Finally consider whether the size is appropriate. 3. Pay attention to the volume of the appliance. If

The relay is an electromagnet whose electromagnet core attracts the armature with the moving contact and cooperates with the reset tension spring to move between one or an array of normally open and normally closed static contacts. All the uses of a relay come down to one point, one or a group of electrical switches that are controlled by weak current. It has a control system and a controlled system, usually used in automated control circuits, which usually use small currents to control large currents or high voltages. The principle of the  Power Relay  is the same as above, but the corresponding contacts, structure, winding, opening distance and so on. Our company mainly produces various types of relays. We are  Power Relay Wholesaler . If you are interested in our products, you can contact us.

Commonly used relays include  Power Relays , electromagnetic relays, solid state relays, time relays, temperature relays, etc. Relays are devices that use the effects of current to close or open circuits for active maintenance and active control. In most cases, the relay is an electromagnet whose armature can close or break one or several contact points. When there is a current passage in the winding of the electromagnet, the armature is attracted by the electromagnet, thus changing the condition of the contact. Now let us briefly introduce the detection method of the relay: 1. Detect the relay coil: adjust the multimeter to "R*100" or R*1K". The two pens are connected to the two pins of the relay. The multimeter indication should match the coil resistance of the relay. If the resistance is significantly biased Small, it clarifies that the coil is short-circuited, if the resistance is zero, clarify the short circuit between the two coil pins; if the resistance is infi

The relay is an automatic switching element with isolation function. It is widely used in remote control, telemetry, communication, automatic control, mechatronics and power electronics. It is one of the most important control components. So what is the role of the relay? 1) Expanding the control range: For example, when the multi-contact relay control signal reaches a certain value, it can switch, disconnect, and turn on multiple circuits at the same time according to different forms of the contact group. 2) Amplification: For example, sensitive relays, intermediate relays, etc., with a very small amount of control, can control a very high power circuit. 3) Integrated signal: For example, when a plurality of control signals are input to a multi-winding relay in a prescribed form, the comparison is integrated to achieve a predetermined control effect. 4) Automatic, remote control, monitoring: For example, the relay on the automatic device together with other electrical applian

Due to the continuous switching of the contacts, the arc of the opening and closing occurs continuously, and abnormal heat is generated at the center of the contact portion, the contact is melted, melted, dissolved and solidified, the operation is poor. An abnormal overcurrent exceeding the rated current of the contact (there is also a case of short-circuit current) may cause the circuit inside the relay to be blown and the contact melting and solidification, resulting in malfunction. Applying an overvoltage to the coil causes a partial short-circuit of the coil to break and the coil to break. There will be traces of abnormal heating of the coil. The low voltage of the power supply and the voltage applied to the coil can cause repeated switching and vibration to occur, causing abnormal heat generation. In particular, for AC-rated relays, the voltage should not be less than 90% of the rated voltage. For DC-rated relays, the voltage should not be less than 70% of the rated voltage.

Power Relays  are commonly used in power protection, automation, motion, remote control, measurement, and communications devices. A power relay is a device that can make a transition in one or more electrical output circuits when the input meets certain specified conditions. It can be used in a neutral point direct grounding system as a directional component for zero sequence current protection. An appliance that turns the controlled output circuit on or off when the input amount (such as voltage, current, temperature, etc.) reaches a specified value. Can be divided into electrical quantities (such as current, voltage, frequency, power, etc.) relays and non-electrical (such as temperature, pressure, speed, etc.) relay two major categories. It has the advantages of fast action, stable operation, long service life and small volume. We have  NB90E Relay ,  NB90 Relay  can provide you, if you want to know more about our products, you can contact us.