
Phase sequence Three Phase Voltage Monitoring Relay Miniature voltage relay
Phase sequence protector is a type of control relay that can automatically identify the phase relay protection relay, to avoid some special mechanical and electrical equipment because of reverse phase after power reversed and cause accident or equipment damage.
Phase sequence protector is a kind of control relay, automatic phase sequence identification protection relay, guarantee some special electromechanical equipment
The reversed phase sequence of the power supply reversed the accident or equipment damage. Such as elevators, central air conditioning, cranes, motors, etc. If the phase sequence of the power supply is wrong after repair, it will lead to accidents. The phase sequence protector must be connected to the control circuit to ensure the phase sequence is correct. Air-conditioner compressors also use phase sequence protectors to ensure that the compressor will not be reversed after maintenance.
♦ Features
-- Three-phase monitoring of phase sequence, phase loss, over- and
undervoltage and phase unbalance
-- Powered by the measuring circuit
-- 1 C/O contact
-- 5 LEDs for status indication
♦ Protective Functions
-- Phase sequence
-- Phase loss
-- Overvoltage
-- Undervoltage
-- Phase unbalance
♦ Typical Applications
• Pumps • Fans
• Blowers • Motors
• Compressors
♦ Approvals
• CE • CCC
♦ Technical data
Type | JVR-380 | ||||||||||||||||||
Measuring circuit | L1,L2,L3 | ||||||||||||||||||
Rated voltage | 220VAC,380VAC ,440VAC | ||||||||||||||||||
Monitoring functions | phase sequence, phase loss, overvolatege, undervoltage, phase unbalance | ||||||||||||||||||
Voltage setting range |
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Indicators | phase sequence, phase loss, overvolatege, undervoltage, and normal | ||||||||||||||||||
Output contacts | 1 C/O | ||||||||||||||||||
Contact capacity | 3A ,250VAC | ||||||||||||||||||
Dimensions (H x W x D) | 68×30×76mm | ||||||||||||||||||
Mounting | DIN rail |
Wenzhou Ginri Power Automation Co., Ltd.
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!