50/60 Hz Three Phase Voltage Monitoring Relay Unbalance 1 C/O Output

Three-phase imbalance: It means that the three-phase current (or voltage) amplitude is inconsistent in the power system, and the amplitude difference exceeds the specified range.

The solution to the three-phase imbalance of the power grid caused by an asymmetric load:
1 . Distribute asymmetrical loads at different power supply points to reduce the problem of excessively unbalanced degrees caused by concentrated connections.

2 . Use cross-equalization to distribute asymmetrical loads to each phase as much as possible to balance them.

3 . Increase the short-circuit capacity of the load access point, such as changing the network or increasing the power supply voltage level to improve the system's ability to withstand unbalanced loads.

4 , install the balance device. Listed briefly above are several technical measures to solve the hazards of three-phase voltage or current imbalance on the power grid and power quality.
Which specific measures should be adopted is more reasonable and effective, and it must be determined after implementation of technical and economic comparisons based on actual conditions.
In the low-voltage three-phase four-wire system for urban residents and rural power supply systems: As the power consumers are mostly single-phase loads or single-phase and three-phase loads are mixed, and the load size is different and the power consumption time is different. Therefore, the unbalanced current between the three phases in the power grid is objectively existent, and this kind of power imbalance situation has no regularity and cannot be foreseen in advance. This leads to a long-term imbalance in the three-phase load of the low-voltage power supply system. For three-phase unbalanced currents, the power sector has few effective solutions other than to distribute the load as much as possible.

♦ Features

-- Three-phase monitoring of phase loss, over- and undervoltage and phase unbalance

-- Powered by the measuring circuit

-- 1 C/O contact

-- 4 LEDs for status indication

♦ Protective Functions

-- Phase loss

-- Overvoltage

-- Undervoltage

-- Phase unbalance

♦ 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!