Nokian Capacitors - Efficient Power Transmission, Reactive Power Compensation and Harmonic Filtering

We offer our customers a solution to save energy and to improve power quality by reactive power compensation and harmonic filtering.

Nokian Capacitors provides complete solutions for energy saving and improved power quality. The company’s core competence areas include the manufacturing of products and systems needed for efficient power transmission, reactive power compensation and harmonic filtering.

Nokian Capacitors provides turnkey solutions worldwide.

COMPENSATION SYSTEMS

Series capacitor banks are used for a more efficient use of transmission lines. The diversification of generation, transmission and distribution in addition to long transmission distances and large generating power plants result in increased demand for economical and reliable operation of the transmission system. Demand for increasing power transfer means either further transmission lines or compensation of lines.

Series compensation is an economical method of improving the power transmission capability of the lines. Series capacitor banks increase power transfer capability, improve system stability, reduce system losses, improve the voltage profile of lines, and optimize current sharing between parallel lines.

The cost of a series capacitor bank is about 10% of the cost of a new transmission line. Thus, the payback time for a series capacitor bank investment is typically only a few years.

Disturbances in the normal operation of transmission lines and industrial distribution systems may be caused by line switching, line faults, non-linear components such as thyristor controls and rapidly varying active or reactive loads. Problems caused by harmonics and a static var compensator can solve the need for an additional reactive power. The SVC is designed to give an individual solution, based on standard components, to meet each customer's needs.

HIGH VOLTAGE EQUIPMENT

• High voltage power capacitors one-phase and three-phase units
• High voltage capacitor banks
• Enclosed automatic capacitor banks for medium voltage up to 36kv
• Harmonic filters and C-type filter banks
• Thyristor Switched Capacitor Banks (TSC)

High voltage power capacitor units include a wide range of one and three-phase all film power and surge protection capacitors. Featuring the most modern technology, they are produced to meet the requirements of different climatic and operating conditions. They can be open or enclosed, high or low power, integrated or for use with individual motors.

Harmonic filters and C-type filters are an economical method of compensating and reducing harmonic currents caused by non-linear loads. Harmonic filters are individually designed to meet the customer's specific requirements.

REACTORS

• Damping reactors for a capacitor bank
• Filter reactors
• Shunt reactors
• Current-limiting reactors
• Thyristor controlled reactors
• Neutral earthing reactors

Air core, air cooled, dry insulated reactors are manufactured for different applications. The range includes series, damping, filter, shunt and SVC reactors. The advanced production technology ensures excellent mechanical and electrical properties even under extreme weather conditions.

LOW VOLTAGE EQUIPMENT

• Low voltage power capacitor units
• Fixed capacitor bank
• Automatic capacitor bank
• Fixed detuned filter
• Detuned filter capacitor bank
• Harmonic filters
• Thyristor Switched Capacitor (TSC) banks

Low voltage capacitor units are dry, metallised film and air-cooled type capacitors. A wide range of one and three-phase units are available for different applications. Low voltage capacitor banks can either be of the fixed-power or automatically self-controlled type with all the necessary switching devices built in.

ELECTRONIC EQUIPMENT

• MaxSine - active filters
• Unbalance protection current relay NUR-36
• Power factor controllers N-6, N-12 and NC-12
• Capacitance metre type NCM-20

A range of high-tech electronic equipment is needed to complete the product family of reactive power compensation and harmonic filtering, e.g. microprocessor-based power factor controllers, unbalance protection relays for capacitor banks and capacitance meters for in-circuit testing of individual units in capacitor banks.