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Home Page > Products > AC Series of Intelligent Capacitor

Product profile

As an integrated intelligent product integrating the optimal control technology and comprehensive product with the low voltage power self-healing capacitor (triangular or start type connection) as the subject and the intelligent synchronous switch as the switching component by means of advanced technology and process based on urgent needs of power industry development, BGMD-AC intelligent power capacitor can achieve rapid assembly, disassembly, maintenance and other operation of the product.

The intelligent capacitor is classified into joint compensation and split compensation, so as to conveniently achieve joint compensation, phase-splitting compensation and hybrid compensation of reactive power. With the box-type structural design, the product can achieve on-site compensation separately, centralized installation compensation or online power distribution box compensation. Extremely concise structural design can meet compensation application requirements of different scenarios and eliminate tedious installation wiring, difficult maintenance and other disadvantages of traditional products.

Product Features

Modular structure Combine relevant elements into an integral whole and use building block stacking method in installation for easy installation.

Advanced switching Zero-cross-switching technology and fast switching response speed without impulse current or causing network voltage flickering.

Intelligent control Networking of multiple units or independent use of single unit; on-site manual operation or remote automatic control.

Anti-switching oscillation Adopt unique design principle to prevent non-compensation or overcompensation caused by controller crash.

Convenient installation Installation is unrelated to the cabinet type and it can match various domestic and foreign cabinet types arbitrarily.

Network communication The built-in communication interface can access to the integrated management background to achieve intelligent management.

Simple wiring Production hours are reduced by more than 60% compared to the traditional model and the concise cabinet can achieve rapid assembly

Convenient interface Relatively independent and mutually associated system provides two external interfaces, grid interface and control interface.

Compact structure Installed capacity is increased by near one time compared to traditional compensation installation mode.

Significant energy conservation Adopt synchronous switch technology, reducing the heat generated in solid-state relay switching and greatly saving the energy.

Convenient extension Conveniently increase the intelligent capacitor modules for extension in case of insufficient reactive compensation capacity, meeting the reactive needs.

Convenient maintenance Convenient and safety maintenance, upgrade and transformation.

Advanced technology Adopt advanced spraying technology to ensure clean and environmentally friendly product appearance.

Significant effect Stabilize the system voltage; improve the power factor, improve the distribution transformer active power output, decrease the increased investment, reduce loss and save energy.

High reliability Adopt independent control mode to avoid impact of failure of single intelligent capacitor on the system.

Technical parameters

Working voltage/frequency	Rated supply voltage ±20%; 50/60HZ
Voltage measurement	≤0.5% (within the range of 80~120% rated supply voltage)
Current measurement	≤1% (within the range of 5%~20% rated current)
Power loss	≤1%
Withstand impulse current	≥50 times rated current IN
Switching surge	≤3 times rated current IN
Capacitor capacity running time decay rate	≤1%, within first five years
Capacitance tolerance	±5%
Average service life	130，000h
Executive standards	GB/T15576-1995 Specifications of Low-Voltage Reactive Power Steady Compensation Equipments, standards IEC60831-1+2, EN60831-1+2, IEC60834-1+2 and GB12747

Structure features

product composition

● Small and miniature current sampling transformers

The miniature transformer with high linearity, good frequency characteristics and small phase difference is adopted for current sampling in each phase of the capacitor to ensure precision and stability of current, power measurement and current protection.

● Quick breaker

The miniature circuit breaker is used as the quick breaker, disconnected within 100ms at 10 times rated current, used for total protection of current switching to avoid higher-level switch trip and used as the electrical connection terminal and battery main switch.

● Synchronous zero-cross-switching switch

This switch can achieve zero-cross-switching requirements, avoiding large switching heat productivity and other defects of the semiconductor switching switch.

● Low-voltage power capacitor

The self-healing low-voltage parallel compensation capacitor is used as the low-voltage power capacitor in the product. Gradual thickened aluminum-zinc metalized polypropylene film is used as the dielectric medium in the capacitor and internally installed with the temperature sensor and reaction capacitor to achieve overtemperature protection for heat productivity in the capacitor in case of overvoltage, over-harmonics, excessive leakage current and excessive environment temperature.

It has the following advantages:

● Dry-type capacitor, unique design

● Small capacity attenuation

● Small dielectric loss, small heat productivity and wide range of allowable application environment temperature

● Overall flame retardance, not resulting in combustion

● Short-circuit and overvoltage protection functions

● No leakage, containing neutral and ecologically favorable insulating gases and excluding PCB, solvent or any other poisonous or banned material.

Specification modelSpecification and model Dimensional change is not subject to prior notice and is subject to the product delivered actually.

● Model selection table of BGMD-AC intelligent capacitor series

Three-phase intelligent capacitor Un=440V, overcurrent capacity 2.0In

Single compensation capacity (kvar)	Model	Composition mode	Switching steps	System voltage (V)
40	BGMD-ACG/440V-20+20	20KVAR+20KVAR	2	400
30	BGMD-ACG/440V-20+10	20KVAR+10KVAR	2	400
20	BGMD-ACG/440V-10+10	10KVAR+10KVAR	2	400
15	BGMD-ACG/440V-10+5	10KVAR+5KVAR	2	400
10	BGMD-ACG/440V-5+5	5KVAR+5KVAR	2	400

Single-phase intelligent capacitor Un=250V, overcurrent capacity 2.0In

Single compensation capacity (kvar)	Model	Composition mode	Switching steps	System voltage (V)
20	BGMD-ACF/250V-10+10	20KVAR	2	400
15	BGMD-ACF/250V-10+5	15KVAR	2	400
10	BGMD-ACF/250V-10	10KVAR	1	400
5	BGMD-ACF/250V-5	5KVAR	1	400

● Model selection table of BGMD-AC filer intelligent capacitor series

适合应用于以下场合：

含有较大量谐波的用电环境下，适合采用滤波智能电容器，根据当地供电局或国标的要求，要对谐波进行治理。

Three-phase filter intelligent capacitor Un=480V, overcurrent capacity 2.0In

Single compensation capacity (kvar)	Model	Composition mode	Switching steps	System voltage (V)
30	BGMD-ACGK/480V-30	30KVAR	1	400
20	BGMD-ACGK/480V-20	20KVAR	1	400
15	BGMD-ACGK/480V-15	15KVAR	1	400
10	BGMD-ACGK/480V-10	10KVAR	1	400
5	BGMD-ACGK/480V-5	5KVAR	1	400