Description
Overview
Essential details:51199942-300 Current protection and control of electric drive system
Product Description
51199942-300 Product Description
I. Product overview
51199942-300 is a product manufactured by Honeywell that is commonly used for current protection and control in electric drive systems. This product is a commonly used electromagnetic relay with current sensing and contact control functions.
2. Technical specifications
Type: Current relay
Function: Used for current protection and control of electric drive system
How it works:
The coil is connected to the main circuit in series and senses the line current of the main circuit.
The contact is connected to the control circuit as an executive element.
Current sensing:
Reflect the current signal, including undercurrent and overcurrent two states.
Undercurrent relay (KA) : The attracting current is 30% to 65% of the rated current of the coil, and the releasing current is 10% to 20% of the rated current.
Overcurrent relay (FA) : The setting range is usually 1.1 to 4 times the rated current.
Application environment:
JT4 series AC electromagnetic relay is suitable for AC 50Hz, 380V and below automatic control loop.
Overcurrent relays are also suitable for 60Hz AC circuits.
Third, product characteristics
High precision: can accurately sense current changes to achieve accurate current protection and control.
High reliability: Strictly tested to ensure stable and reliable work in various working environments.
A variety of protection functions: including undercurrent protection and overcurrent protection, effectively protect the circuit and equipment safety.
Iv. Application scenarios
51199942-300 Current relays are widely used in scenarios requiring current protection and control of electric drive systems, such as industrial automation, power systems, mechanical equipment and other fields. In these application scenarios, it can effectively monitor the current status, detect and solve potential problems in time, and ensure the normal operation of circuits and devices.
51199942-300
Product parameter
51199942-300 Product parameters
1. Basic information
Brand: Honeywell
Type: Current relay
Application scenario: Current protection and control of electric drive system
2. Technical specifications
Current induction
Undercurrent relay (KA)
Attracting current: 30% ~ 65% of the rated current of the coil
Release current: 10% ~ 20% of rated current
Overcurrent relay (FA)
Setting range: usually 1.1 ~ 4 times the rated current
Operating frequency
JT4 series AC electromagnetic relay: suitable for AC 50Hz, 380V and below automatic control loop. Overcurrent relays are also suitable for 60Hz AC circuits.
APPLICATION
51199942-300 Application field
51199942-300 Honeywell current relays, as an integral part of electric drive systems, have a wide range of important applications. The following is a detailed summary of its main application areas and characteristics:
Electric drive system protection
Current relays are used for current protection and control of electric drive systems to ensure that the system can run stably under various working conditions.
Under current relay (KA) in the normal operation of the circuit, the armature is in the state of suction; When the current is reduced to a certain set value, the relay is released, and the control circuit loses power, thus controlling the contactor and the time-off circuit, and playing the role of undercurrent protection.
Overcurrent relay (FA) does not operate when the circuit is working normally, but when the current of the protected line is higher than the rated value and reaches the setting value of the relay, the armature draws, the contact mechanism acts, and the control circuit loses power, so as to control the contactor and the time-off circuit, and plays an overcurrent protection role on the circuit.
Industrial automation field
In industrial automation systems, 51199942-300 current relays can be used to monitor and control the current status of various power equipment to ensure that the equipment operates under safe and stable current conditions.
Through accurate current sensing and contact control functions, the remote control, automatic adjustment and fault protection of power equipment are realized, and the automation level and production efficiency of industrial production are improved.
Electric power system
In power systems, current relays can be used to protect generators, transformers, transmission lines and other key equipment to prevent equipment damage and safety accidents caused by overcurrent, undercurrent and other failures.
By monitoring and controlling the current status of power equipment in real time, potential safety hazards are discovered and eliminated in time to ensure the stable operation of power system and power supply safety.
Mechanical equipment
In a variety of mechanical equipment, such as motors, pumps, fans, etc., current relays can be used to monitor and control the current state of the equipment to ensure that the equipment operates within the rated current range.
When the equipment has overcurrent, undercurrent and other faults, the current relay can quickly cut off the power supply to prevent equipment damage and accidents.
In short, 51199942-300 Honeywell current relays have a wide range of application prospects and important roles in the fields of electric drive systems, industrial automation, power systems and mechanical equipment. Through accurate current sensing and contact control functions, the effective protection and control of power equipment and systems are realized, and the safety and reliability of the system are improved.
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