LCD Motor Intelligent Protector

Summary: Nanjing Swo 189 Ceramic 5244 Factory 6334 at your servicePDM-810MRC-3-C+R5A-400V motor protectorIt is an electronic multi action motor protection device. It is mainly suitable for industrial motors and power systems in metallurgy, chemical industry, textile, etc., for overload, phase loss, locked rotor, and three-phase unbalanced circuit protection. Compared with ordinary protectors, it has the advantages of high setting accuracy, energy saving, sensitive action, and reliable operation. According to the accounting of the user unit, replacing thermal relays and old products with it has significant economic benefits.

The Status of Domestic Motor Protectors (Motor Protectors)

（1） Thermal relay is a metal sheet mechanical motor overload protector developed by introducing Soviet technology in the early 1950s. It has the characteristics of inverse time performance and simple structure in protecting motor overload. However, there are few functions and no phase failure protection, which can cause poor ventilation, chamber cleaning, stalling, and long-term overload of the motor; Frequent startup and other malfunctions do not provide protection. This is mainly because the action curve of the thermal relay is inconsistent with the actual protection curve of the motor, losing its protective function. And it has poor repeatability, cannot be reused after high current overload or short circuit faults, large adjustment errors, susceptibility to misoperation or refusal to operate due to environmental temperature, high power consumption, multiple consumables, and outdated performance indicators.

（2） A temperature relay is a disc or other form of relay made of bimetallic sheets, which has the advantages of simple structure, reliable operation, and wide protection range. However, it operates slowly, has a long return time, and is not suitable for triangular connected motors above 3KW. At present, it is widely used in electric fans, refrigerators, air conditioning compressors, and other fields.

technical indicators

JB/T 10736-2007 Standard for Low Voltage Motor Protectors in the Machinery Industry of the People's Republic of China

GB14048.1-2000 General Principles for Low Voltage Switchgear and Control Equipment

GB14048.4-2003 Low voltage switchgear and control equipment - Electromechanical contactors and motor starters

GB/14048.5-2001 Low voltage switchgear and control equipment - Control circuits, electrical appliances and switching elements - Part 1- Mechanical equipment

Electric control circuit appliances

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GB/T17626.4-2006 Electrical Fast Transient Pulse Group Immunity Test

Horse protection function

1. The on/off and protection parameters of the protection function are adjusted on-site by professional personnel as needed, and will not be lost in case of power failure.

2. The 'tE time protection' complies with the national standard (GB3836.3-2000) and is suitable for increased safety explosion-proof motors.

3. The action function of the large short-circuit current blocking contactor sends a command to trip the molded case circuit breaker.

4. The "anti shaking" function ensures that the motor can operate continuously during power grid shaking.

5. The "restart function" ensures that the motor can automatically restart in batches when there is a short-term power outage in the power grid.

6. 4-20mA analog output can select one of the corresponding operating parameters of the motor to achieve data upload.

7. The controller supports standard fieldbus interfaces such as single/dual Modbus RTU, single/dual Profibus DP, DeviceNet, etc.

8. It has management functions such as recording the current running/stopping time, cumulative running/stopping time, cumulative failure times, and operation times of the electric motor.

Installation precautions

1. After unpacking the protector, first visually inspect the overall condition of the product for any damage or defects, and check the accompanying accessories.

2. Carefully read and understand the random user manual of the product, and ensure that the protective device settings are correct and complete.

3. Whether the on-site conditions are convenient and suitable for the installation and wiring of the protector, and whether the protection function mode meets the actual requirements of the motor.

4. Whether the on-site environment used is suitable for the working conditions and standards specified by the protector.

5. The input and output terminals of the protector should be correctly wired by the user, and the wiring or plug-in should be firmly fixed with good contact.

Company Introduction

Nanjing Swo Electric Co., Ltd. is located in Nanjing, the ancient capital of the Six Dynasties, and is a limited company that integrates research and development, production, and sales. The company has strong technical strength and a group of professional automation instrument engineers and management talents. The main products we operate include multifunctional power meters, three-phase rail meters, prepaid energy meters, motor protectors, ammeters, voltmeters, three-phase ammeters, etc. These products are widely used in the automation control processes of industries such as petroleum, chemical, power, metallurgy, pharmaceuticals, glass, and scientific research. Our products are sold throughout the country, and some of them are exported to countries and regions such as Europe, Africa, and Asia and are highly popular. Survival is based on quality, and enterprises regard reputation as their life. We have established a comprehensive after-sales service system and technological innovation as the driving force for our development. Customer satisfaction is our unremitting pursuit.

PDM-810MRC-3-C+R5A-400V motor protectorWelcome to Nanjing Swo Pottery!