GINRI Voltage Monitoring Relay DC Over/Under Voltage Relay DVRD

Features:

• Compact modular size
• DC circuit monitoring of over-and undervoltage
• Adjustable over-and undervoltage threshold
• Adjustable trip delay time
• Powered by the measuring circuit
• 2C/O contacts
• 2 LEDs for status indication

Protective Functions

• DC overvoltage
• DC undervoltage

Applications

• DC cabinet
• Battery
• Electric control system

Low voltage protection
Also known as loss of voltage protection and undervoltage protection. A protection measure that automatically disconnects the circuit when the supply voltage disappears or falls below a certain value. Its function is to avoid accidents caused by the sudden start of the device when the voltage is restored; and to avoid damage due to the bare operation at low voltage. At low voltage, the equipment can only maintain its operation when the current is increased. The current increases, and the heating temperature is naturally intensified. If it is light, it will damage the equipment and cause fire. For important protection objects, the device consists of voltage relays, time relays and circuit breakers, and the protection performance is relatively accurate. For general low-voltage equipment, common fuses, contactors and loss-of-voltage (undervoltage) trip units are used as protection devices. [1]
Low voltage protection means that the low voltage protection relay is connected in parallel at both ends of the power supply. When the voltage is low, it will automatically trip to separate the circuit breaker switch. Low-voltage internship installation: low-voltage equipment such as thermal relays, fuses, and intermediate relays.
When the voltage of the power supply bus of the motor is reduced or interrupted and restored, the low voltage protection is usually installed on the secondary motor to prevent the motor from being automatically started at the same time. When the power supply bus voltage is low to a certain value, the low voltage protection action removes the secondary motor and restores the power supply bus voltage to a sufficient voltage to ensure the self-starting of the important motor.

GINRI POWER AUTOMATION CO.,LTD. is a professional production voltage phase sequence protection device (and name: three-phase power monitor), and PLC output zoom Board, and smart type motor integrated protection device, and industrial parts manufacturers, technology development team in elevator industry, and refrigeration industry, and crane industry, environmental equipment, mechanical NC industry and the industrial following insurance industry, field has more than 10 years practice experience, has development out variety price economic and function excellent of products. CQC product quality system by China Quality Centre (3C) certification and CE certification, products in the manufacturing process in strict accordance with the ISO9001 quality assurance system requirements and professional technical and service support.

Voltage phase-sequence protection for many years (equipment, refrigeration equipment, crane (passenger and goods) elevators, control of DC power supply system (Cabinet) screens, precision air conditioners, room air conditioners, electric hoist, boiler equipment, laser equipment, parking equipment, cranes, compressors) and so on using the run.

PLC output amplifiers (environmental protection equipment, numerical control and automation equipment, automobile, plastic machinery, hydraulic machinery, ceramic foam machinery, woodworking machinery, machinery) and so on using the run.

Years of integrated Intelligent motor protector (power plants, paper mills, steel mills, aluminium plants, cement plants, sewage treatment plants, coal preparation plants, refineries, petrochemical plants), and so on using the run.

Product quality is stable and safe, reliable, and earned a solid market position in the market and a high reputation in the industry, received unanimous recognition and praise of our customers.

Ginri company always adhere to "scientific management as the core, the user needs for the Centre to focus on product quality, meticulous service is sincere," the spirit of enterprise, please call us from all walks of life, thank you!