A current transformer is a device used to measure alternating current. For example, in the process of power generation or transmission, the alternating current of different equipment can be converted into the required current of tens of amperes to tens of thousands of amperes. It can not only monito... read more
Manganese-bronze shunt is a precision resistance element used to make high-level measurement voltage, current, bridge, potentiometer and other instruments and meters, and it is more suitable for making standard resistor elements for reference. The manganese-copper shunt (manganese-copper sampling r... read more
A current transformer is an instrument that converts a large current on the primary side into a small current on the secondary side based on the principle of electromagnetic induction. The current transformer is composed of a closed core and windings. Its primary winding has a few turns and is strin... read more
GRT508B 100A GENERAL PURPOSE SINGLE PHASE LATCHING RELAY. It has an interactive relationship between the control system (also called the input loop) and the controlled system (also called the output loop). Usually used in automated control circuits, it is actually an "automatic switch" that uses a s... read more
The new type of relay refers to the electromagnetic relay developed and produced in order to meet the new special requirements and meet the use under special environmental conditions. Its main characteristics are small size, light weight, vibration resistance, shock resistance, and load range from ... read more
1. The influence of the environment on the reliability of the relay: The average time between failures of the relay working in GB and SF is the highest, reaching 820000h, while in the NU environment, it is only 60000h. 2. The influence of quality level on the reliability of relays: When the relay ... read more
There are many types of relays. According to the input quantity, they can be divided into voltage relays, current relays, time relays, speed relays, pressure relays, etc. According to the working principle, they can be divided into electromagnetic relays, inductive relays, electric relays, electroni... read more
①Measure contact resistance: use the electrical barrier of a multimeter to measure the resistance of the normally closed contact and the moving point. The resistance value should be 0; and the resistance value of the normally open contact and the moving point is infinite. From this, it can be distin... read more
①Rated working voltage: refers to the voltage required by the coil when the relay is working normally. Depending on the type of relay, it can be AC voltage or DC voltage. ② DC resistance: refers to the DC resistance of the coil in the relay, which can be measured with a multimeter. Miniature R... read more
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