48 Volt DC Voltage Monitoring Relay Electric control system CE / CCC Cetificayion

Overvoltage protection: When the fault voltage exceeds the protection setting value, a trip command or overvoltage signal is issued.
Low-voltage protection: When the fault voltage is lower than the protection setting value, a trip command or low-voltage signal is issued.
Overvoltage protection
Overvoltage refers to any voltage whose peak value is greater than the corresponding peak value of the maximum steady state voltage under normal operation. In engineering, it refers to any dangerous voltage that may cause damage to the equipment. Therefore, in the project, some overvoltages that are larger than the normal operating voltage but are not enough to endanger the normal operation of the equipment are excluded. Overvoltage includes:
(1) Transient overvoltage, duration of milliseconds or less, is the main protection target for lightning arresters.
(2) Transient overvoltage or short-term overvoltage, the duration is relatively long, generally between 0.1s and 1s.
The sources of transient overvoltages are: lightning strikes, switching operations, electrostatic discharges, and nuclear explosions. At the communications station, lightning overvoltages or lightning overvoltages are predominant.
Transient overvoltages mainly include: over-voltage transfer, zero-off over-voltage, over-voltage resonance over-voltage and over-voltage caused by the drift of the neutral line. In addition, capacitive effects, unbalanced ground faults, and sudden load dumps on no-load lines can also create dangerous overvoltages.

♦ Features

-- DC circuit monitoring of over and undervoltage

-- Adjustable over- and undervoltage threshold
-- Adjustable trip delay time

-- Powered by the measuring circuit

-- 1 C/O contact

-- 2 LEDs for status indication

♦ Protective Functions

-- Overvoltage

-- Undervoltage

♦ Typical Applications

• DC cabinet • Batteries

• Electric control system

♦ Approvals

• CE • CCC

♦ Technical data

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!