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MVAJ13D1GB0780A electrical protection relay GEC ALSTHOM

MVAJ13D1GB0780A electrical protection relay GEC ALSTHOM

Manufacturers :
Model(s)  :MVAJ13D1GB0780A
Additional Information : electrical protection relay
Estimated Shipping Size
Dimensions: 263 × 58 × 28mm
Weight:.4.3 kg
Country of Origin: United States of America

Categories: , SKU: MVAJ13D1GB0780A

Description

Overview


Essential details:MVAJ13D1GB0780A electrical protection relay GEC ALSTHOM

Relay in series RC circuit: This form is mainly used in circuits where the rated operating voltage of the relay is lower than the supply voltage. When the circuit is closed, the electromotive force generated by the self-inductance phenomenon of the relay coil will hinder the increase of current in the coil, thus prolonging the closing time. After the RC circuit is connected in series, the closing time can be shortened. The principle is that at the moment when the circuit is closed, the voltage at both ends of capacitor C can be regarded as a short circuit if it cannot be mutated. In this way, the power supply voltage higher than the rated working voltage of the relay coil is added to the coil, thus speeding up the increase of current in the coil and making the relay pull in quickly. After the power supply is stabilized, capacitor C does not work and resistance R acts as current limiting function.

2. Selection of rated working voltage of relay
The rated working voltage of relay is the most important technical parameter of relay. When using a relay, the working voltage of the circuit (that is, the circuit where the relay coil is located) should be considered first. The rated working voltage of the relay should be equal to the working voltage of the circuit. Generally, the working voltage of the circuit is 0.86 of the rated working voltage of the relay. Note that the workpiece voltage of the circuit must not exceed the rated working voltage of the relay, otherwise the relay coil is easy to burn. In addition, some integrated circuits, such as NE555 circuit can directly drive the relay work, and some integrated circuits, such as COMS circuit output current is small, need to add a transistor amplifier circuit to drive the relay, which should consider the transistor output current should be greater than the rated working current of the relay.

MVAJ13D1GB0780A

What is a relay? Relay is the electronic component of the control circuit, through the induction of the input current changes to control the circuit on and off, usually used in automatic control circuit, in the circuit plays the role of automatic regulation, isolation, safety protection and conversion. The left side of the relay is the ground control pin, and the right side is the normal beginning, normally closed end and common end. When there is no power on, the closed end is often connected to the common end, and the normal beginning is connected to the common end after power on, so the relay is equivalent to a switch.

The relay is composed of coil, magnetic circuit, reaction spring and contact. When energized, the coil generates electromagnetic suction, which drives the armature in the magnetic circuit to pull together and make the normally closed and normally open contacts change in action. After power failure, the reaction spring helps the armature and contact to restore to the initial state.relay
Relays can be divided into three types: current relay, voltage relay and intermediate relay. Current relay is a relay that reflects the current change in the circuit. The coil has few turns and thick diameter, and is connected in series with load. Voltage relay is the most commonly used relay, which reflects the voltage change in the circuit. The coil has many turns and thin diameter. It is connected with the power supply in parallel to protect overvoltage and undervoltage. Intermediate relays are generally used to transmit intermediate signals in the control circuit, increase the number and capacity of contacts, and play the role of intermediate amplification

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Sales Manager: Manager He
E-mail number: sales@xiongbagk.cn
skype/ wechat: +86-18059884797
Mobile phone/wechat: +86-18059884797
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Same day shipment of 1000 parts

My company under the Sales and Marketing Department, technical engineering Department, after-sales service department, the department of comprehensive management. We can help your business with good service.

1. Sales Department 24/7 service. Handles your requests for any PLC DCS products in a timely manner with patience and professionalism.

2. The engineering department ensures that the products have no quality problems. All products will be inspected before shipping.

3. The financial department checks the payment and refund in time.

4. The warehouse department will carefully check the list of goods, carefully pack them, and deliver the goods in time.

5. After-sales Service Department has a full-time after-sales service team, subordinate to the sales department, and users can timely respond to service requests.

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Superiority products MVAJ13D1GB0780A electrical protection relay GEC ALSTHOM

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