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概述:
在工業(yè)企業(yè)的供電系統(tǒng)中，有大量的非線(xiàn)性負(fù)荷存在如晶閘管整流器，變頻器等，會(huì)產(chǎn)生大量的諧波電流注入電網(wǎng)，引起電流和電壓的波形畸變，這些設(shè)備是供電系統(tǒng)內(nèi)的諧波源，如讓這些諧波電流無(wú)約束的在線(xiàn)路中流動(dòng)必將影響周?chē)秒娫O(shè)備的安全使用和用電質(zhì)量。
在主要諧波源設(shè)備附近，就近連接一臺(tái)調(diào)諧濾波器，它的投切與諧波源設(shè)備同步進(jìn)行，這是解決諧波干擾，就地解決無(wú)功補(bǔ)償?shù)囊环N好辦法。哈工大威瀚公司為不少用戶(hù)量身定做了許多設(shè)計(jì)方案，達(dá)到理想的經(jīng)濟(jì)效益和實(shí)際使用效果。
JSF 系列調(diào)諧濾波器與 TSF 的區(qū)別在于控制方式的不同，它可以固定投切，也可以與要補(bǔ)償?shù)脑O(shè)備同時(shí)投切。受控操作，接觸器投切，由于它的特殊設(shè)計(jì)，可以完全避免諧波電壓，諧波電流的遞增放大。每臺(tái)柜的諧振頻率按用戶(hù)要求設(shè)計(jì)，調(diào)試，通常是 5 次（ 250 HZ ）， 7 次（ 350 HZ ）。它在基波頻率下呈容性，即產(chǎn)生無(wú)功功率可以進(jìn)行功率因數(shù)的補(bǔ)償，在諧波頻率下起調(diào)諧濾波作用，從電網(wǎng)中消除低次諧波的部分含量（約 50% ）
技術(shù)參數(shù):
◆系統(tǒng)電壓： 220 伏， 380 伏
◆ 額定容量： 22.5 45 90 135 180 270
◆諧振頻率： 250 HZ ， 350 HZ 。其他頻率可以根據(jù)用戶(hù)要求提供
◆保護(hù)等級(jí)： IP20 、IP30
◆安裝場(chǎng)合：室內(nèi)，也可以根據(jù)用戶(hù)要求提供室外型
◆ 溫度范圍： -30°C ~ +40°C
◆ 符合標(biāo)準(zhǔn)：IEC831-1，GB12747－91
◆ 柜型：GGD、 GCS 或根據(jù)用戶(hù)設(shè)計(jì)
◆ 柜體尺寸：
容量 寬 × 深 ×高 (mm)
22.5kvar 800×600×1200
90kvar 800×800×1200
135kvar、270kvar 1000×1000×2200
JSF-Series Tuning Filters
INTRODUCTION：
In the power supply system of the industry and enterprise, there are a large amount of non-linear loads, such as thyristor rectifier and frequency converter, that can produce much harmonic current injecting to the power grids and lead the current and voltage to deform. These devices are the harmonic source in the supply system. If these harmonic current flows into the grids freely, it will badly impact on the safety and quality of the electricity in the surrounding electronic equipments.
A tuning filter should be connected near to the main harmonic equipments. Its switch should be synchronous with the harmonic source, which is a good way to eliminate the harmonic disturbing and compensate the reactive power on the spot. Weihan carries out various designs and schemes according to the customer, and attain desirable economic benefits and practical impacts.
The difference between JSF-series tuning filters and TSF is its control pattern. JSF can be controlled at not only the certain time, but the simultaneously compensating time. Due to its specific design, JSF can entirely eliminate the harmonic current and voltage from increasing and amplifying by degrees. The resonating frequency of each designed cupboard and debugged from the customer demands, is usually 5th (250 HZ), 7th (350 HZ). It presents as capacity at the basic frequency, means JSF which is producing the reactive power can compensate the power factor, plays a filtrating and tuning impact on the resonant frequency, and eliminates the parts of the low harmonic power grids (almost 50%).
TECHNIQUE PARAMETER：
◆ System voltage:220v/380v
◆ Rated capability:22. 5 45 90 135 180 270
◆ Resonate frequence: 250 HZ ， 350 HZ support other frequence according to the customer's order
◆ Protective level: IP20 、 IP30
◆ Fixing occasion: indoor,support outdoor according to the customer's order
◆ Temperature range: -30°C ~ +40°C
◆ Standards: IEC831-1 ， GB12747 － 91
◆ Type of the cupboard: GGD 、 GCS or as the customer designs
◆ The size of the cupboard:
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