
Electric Control System Dc Relay , 24 Volt Phase Balance Relay DVRD-12
The voltage protection relay is a multi-function three-phase three-wire power system or three-phase power equipment monitoring and protection equipment. Sets three-phase voltage display, over-voltage protection, under-voltage protection, phase loss protection (phase protection), three-phase voltage imbalance protection, phase sequence protection (wrong phase protection) in one. It can be used to monitor important parameters (voltage, phase sequence, phase loss, and phase balance) in three-phase power supply system. It can send alarm signals in time to abnormal conditions that may endanger the safe and reliable operation of power systems and equipment. The system can be properly handled before the machine equipment is more damaged, so that the machine equipment and system can obtain the maximum degree of protection, improve the effectiveness of the machine, equipment and system, and reduce maintenance costs due to three-phase system failures. Maintenance time.
Voltage protection relay (also known as three-phase power monitor,
phase sequence protector, over-voltage protection, etc.) is mainly
used for AC 50/60Hz, rated voltage below 660V, industrial
three-phase 100V, 220V, 380V (400V), 440V (460V), 660V and other
voltage level fault detection, provide relay protection for
three-phase input power supply voltage is too high, voltage is too
low, phase failure, wrong phase (reverse phase sequence),
three-phase voltage imbalance, etc. It can be widely used in power
distribution cabinets, distribution boxes, electronic control
boxes, power electronic devices, telecom communication room power
supplies, etc. It is an indispensable protection product that
maintains normal working voltage of industrial equipment during
operation.
Features:
Protective Functions
Applications
Model | DVRD | |||||||||||||||
Input circiut =measuring circuit | DC supply | |||||||||||||||
Rated voltage | DC12V.DC24V.DC36V,DC48V | |||||||||||||||
Monitoring functions | Overvoltage,undervoltage | |||||||||||||||
Voltage setting range |
| |||||||||||||||
Tripping delay time | 0.1~15s adjustable | |||||||||||||||
Voltage hysteresis | 3-5% fixed | |||||||||||||||
Reset delay time | 100ms | |||||||||||||||
indicators | normal,trip | |||||||||||||||
Output contacts | 2C/O | |||||||||||||||
Contact capacity | 6A,250VAC/30VDC(resistive load) | |||||||||||||||
Degree of protection | IP20 | |||||||||||||||
Working conditions | -25℃~65℃,≤85%RH,non-condensing | |||||||||||||||
Mechanical durability | 1000000 cycles | |||||||||||||||
Dielectric strength | >2KVAC 1min | |||||||||||||||
Weight | 130g | |||||||||||||||
Dimension(HXWXD) | 79X23X79mm | |||||||||||||||
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!