High Voltage Shunt Capacitor Unit for AC Power System LV Capacitor Bank

Introduction to Product

The capacitor is a shunt capacitor unit (hereinafter referred to as capacitor) for improving power factor and grid quality in AC power system
with nominal voltage above 1kV and frequency of 50 or 60Hz. The product adopts GB / T 11024.1 and DL / T 840 standards.

Feature:

The capacitor is mainly composed of shell, core and impregnant. The shell is made of high quality thin steel plate and sealed and welded.
The cover of the shell is welded with a lead-in sleeve, and the two sides of the shell are welded with lifting plates for handling and installation.
The core is composed of several components and insulating parts connected in series and parallel. The components are made of
polypropylene film as solid medium and aluminum foil as electrode plate. The shell is filled with excellent impregnant.

Technical specification:

For example:

BAM12-500-1W

Meaning: polypropylene film dielectric impregnated with benzyl toluene, rated voltage 12kV, rated capacity 500kvar, single phase, outdoor
type shunt capacitor

Rating and main technical performance

1 Rated voltage: 1.05; 3.15; 6.6 / √ 3; 6.3; 10.5 / √ 3; 10.5; 11 / √ 3; 11; 11 / 2; 12 / 2; 12 / √ 3; 12; 24 / √ 3; 24kV.

2 Rated capacity: 100; 150; 200; 300; 334; 400; 417; 500; 667kvar.

3 Product technical parameters (see Appendix A).

4 Product and installation dimensions (see Appendix B).

5 Capacitance Deviation: the deviation between measured capacitance and rated value of capacitor shall not exceed – 5 – + 5% of rated
    value; for three-phase capacitor, the ratio of maximum value to minimum value measured between any two terminals shall not exceed 1.02.

6 Under rated voltage and temperature of 20 ºC, the tan δ value of full film dielectric capacitor shall not exceed 0.0005.

7 The capacitor terminal can withstand the power frequency AC test voltage of 2.15 times the rated voltage for 10s.

8 For all capacitors with terminal and shell insulation, the short-time power frequency withstand voltage test and lightning impulse voltage test
   of insulation grade corresponding to rated voltage of capacitor in Table 1 can be withstood between terminals and shell for 10s. The
   capacitor with one terminal fixed to the shell shall not be tested.

Chart1      Insulation level kV

9 Overload capacity

a. Overvoltage: the capacitor shall be able to operate at the voltage levels given in Table 2. However, the over-voltage above 1.15un given in
    Table 2 should not exceed 500 times in the life of capacitor.

Chart 2      Allowable voltage level in operation

b. Over current: the capacitor shall be able to operate under continuous over-current not exceeding 1.3 times of rated current of capacitor
caused by fundamental overvoltage or harmonic or both. For capacitors with actual capacitance up to 1.05 times of rated capacitance,
continuous over-current is allowed to reach 1.37 times of rated current. 

Using environment:

a. The altitude shall not exceed 1000m.

b. The ambient temperature is – 40 ~ + 45 ºC.

c. The site shall be free of violent mechanical vibration, no harmful gas and steam, and no conductive or explosive dust.

d. Other service conditions: before the capacitor is put into operation, the residual voltage between the terminals shall not exceed 10% of
the rated voltage.

e. When the capacitor involves any special use conditions such as high relative humidity, rapid mould growth, corrosive atmosphere,
pollution, altitude over 1000m, earthquake area, the buyer shall inform the company and negotiate to determine the type of product and
special preventive measures taken.

Company Introduction

NingboVille Enterprise Co.,Ltd.is a combination of Transformer R&D center, production, sales and after sales service,possesses of
strong technical strength andexcellent manufacturing equipments, as well as modern Office facilities. It specially produces large scale power
transformer and industrial transformers of high quality and reliability. A large share of its resources are devoted to research and development
of industrial and special transformers and reactors for any special application,such as the iron and steel and electrometallurgical industries.
The company main working is suppling,engineering,designing,manufacturing, executing, and commissioning for transformer.

Why Choose Us

FIRST-CLASS PROCESSING AND TEST EQUIPMENT
We have more than 500 sets of sophisticated, advance production and test equipments, complete and perfect processing equipments, and 
scientific and rational processing technology, which guarantee first-class products, Authorized by the Bureau of Zhejiang Technology 
Supervision, Quzhou Fangyuan Inspection Company of Power Transmission and Transformation Equipment, whick is based on our testing
center, undertakes the quality inspection of the industry in our province, this is a solid guarantee for our excellent product quality.

BEAUTIFUL ENVIRONMENT
We are confident that good products come from good personnel, and good environment makes qualified personnel. The company is
committed to creating a garden-like working environment for employees. We have green belts, modern standardized workshops and well-
planned parks where we sow our youth; we work hard, so we are harvesting the future.

With the first-class quality products, reasonable price and excellent after-sale services.product not only best-selling all over the country,but
also in the international market have higher credit, such as Thailand, Vietnam, Myanmar, Indonesia,alaysia,Philippines, Ethiopia and Nigeria,
Saxonstan, Uzbekistan, Korea, Turkey, Sudan, Iran etc. especially in the steel enterprises, VILLE production of transformers already have
high reputation.

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