Phase sequence Three Phase Voltage Monitoring Relay Miniature voltage relay

Sampling three-phase power supply and processing, in the case of phase sequence of the power supply phase sequence and protector terminal input, the output relay is turned on, the device main control circuit is connected. The existing two types of products are: when the phase sequence of the power supply changes, the phase sequence does not match, and the output relay cannot be turned on, thereby protecting the equipment and avoiding the occurrence of accidents; the other type uses digital micro-core technology products and can realize automatic Phase sequence recognition, and automatic phase sequence conversion, to ensure that the motor rotates in a constant phase sequence.
The three-phase power supply is connected to the three connection points U, V, W (some R, S, T or L1, L2, and L3) of the protector in turn, and the auxiliary contacts of the phase sequence protector generally have a normally open and normally closed state. In the access control loop, it is connected normally or normally closed according to the control principle or wiring diagram. When the phase sequence is wrong or the phase is missing, the auxiliary contact action of the protector is normally open, normally closed, and normally closed. . If it plays a protective role, it should be normally closed contacts.
♦ Features
-- Built-in LCD and keypad afford a precise,digital setting
-- Three-phase monitoring of phase sequence, phase loss, over- and undervoltage and phase unbalance
-- Adjustable over- and undervoltage, phase unbalance threshold
-- Independent adjustable delay time for overvoltage, undervoltage, phase unbalance
-- Powered by the measuring circuit
-- 1 NO & 1NC contacts
-- Faulure recording

♦ Protective Functions
-- Phase sequence
-- Phase loss
-- Phase unbalance
-- Overvoltage
-- Undervoltage

♦ Typical Applications
• Pumps • Fans
• Blowers • Motors
• Compressors

♦ 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!