Scope of Application

The distribution network includes the following scenarios with nonlinear electrical equipment. :

1 , Lighting Control System ( Brightness Adjustment )

​​​​​​​2 Switch-mode power supply ( Computers, office automation equipment, household appliances )

​​​​​​​3 Electric motor speed control equipment

​​​​​​​ Scope of Application

The distribution network includes the following scenarios with nonlinear electrical equipment. :

​​​​​​​1 , Lighting Control System ( Brightness Adjustment )

​​​​​​​2 Switch-mode power supply ( Computers, office automation equipment, household appliances )

​​​​​​​3 Electric motor speed control equipment

​​​​​​​4 • Self-saturating iron core

​​​​​​​5 Uninterruptible Power Supply

​​​​​​​6 , Rectifier

​​​​​​​7 , Welding equipment

​​​​​​​8 Arc furnace

​​​​​​​9 CNC machine tools (CNC)

​​​​​​​​​​​​​10 , Electronic control mechanism

​​​​​​​11、 EDM Mechanical

How it works

It may be incorrect to assume that the root cause of equipment failure lies solely within the power plant where the failure occurred. The issue could also stem from harmonic interference generated by a neighboring factory, which has affected the shared distribution network.

The GGJ series low-voltage filtering reactive power compensation device consists of the CVT-18 series measurement and control unit, MST/MSK series filtering compensation modules, busbar system, protection system, cabinets, and more. The measurement and control unit accurately measures the reactive power, and based on pre-configured parameters, the MST filtering compensation module employs HKT non-contact, fast, inrush-free switching technology to enable stepwise automatic switching—achieving precise three-phase and phase-specific reactive power compensation. Meanwhile, the MSK filtering compensation module uses its own switching mechanism for stepwise automatic operation, delivering highly accurate three-phase reactive power compensation. Additionally, the inclusion of reactors effectively prevents system oscillations while purposefully designed to absorb significant harmonic components from the power supply.

Normal operating conditions

● Ambient temperature: -50°C to +40°C, with the average temperature not exceeding +36°C over any 24-hour period

●Altitude: Not exceeding 2,500 m.

●Relative humidity: Not exceeding 50% when the ambient air temperature is +40°C. At lower temperatures, higher relative humidity levels are permissible (e.g., up to 90% at +20°C), allowing for moderate condensation due to temperature fluctuations.

● The tilt angle of the equipment relative to the vertical plane should not exceed 5° during installation.

● The equipment should be installed in a location free from severe vibrations, impacts, and corrosive substances.

●Note: If the above conditions cannot be met and the user has special requirements, please contact our company to discuss possible solutions.

Product Features

● Highly Intelligent Measurement and Control

The measurement and control device utilizes DSP technology to measure various parameters, including frequency, voltage, current, active power, reactive power, power factor, and harmonic components. It also supports asynchronous automatic switching operations and can trigger alarms and protection functions in cases of harmonic overlimits, voltage overlimits, or system oscillations.

● Efficient, safe, and reliable

The GGJ series filter compensation capacitors and HL series filtering reactors are utilized, featuring built-in discharge resistors. These components incorporate advanced technologies such as dry-type construction, self-healing capabilities, and pressure-sensitive circuit-breaker technology, ensuring long service life and exceptional overload resistance. The reactors boast high linearity, minimal inductance tolerance, compact dimensions, and a high temperature rating (Class H). Additionally, they are equipped with a comprehensive temperature protection system and an efficient ventilation setup.

●Switching Technology

HKT uses contactless fast switching devices with zero inrush current, or high-performance, robust contactors for switching operations.

Ordering Instructions (Please specify when placing your order)

1. Main circuit scheme number, purpose, single-line system diagram, arrangement drawing, and distribution room layout plan, etc.

2. Schematic diagram of the auxiliary circuit wiring and terminal arrangement chart.

3. Model, specifications, and quantity of electrical components within the switchgear.

4. Requirements for control, measurement, and protection functions of switching equipment, as well as requirements for other interlocking and automatic devices.

5. If bus bridges are required to connect switchgear units or incoming feeder cabinets, please provide specific requirements such as the rated current-carrying capacity of the bus bridge, its span length, and the height from the ground.

6. When attachments or spare parts are needed, please specify the type and quantity required.

7. If the switchgear is to be used in special environmental conditions, other specific requirements should be clearly specified at the time of order placement.