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南澳電氣NAXZ全自動變頻串聯(lián)諧振高壓試驗(yàn)裝置

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NAXZ Series Automatic Frequency Series Resonant 南澳電氣 NAXZ全自動變頻串聯(lián)諧振高壓試驗(yàn)裝置產(chǎn)品簡介南澳電氣 NAXZ全自動變頻串聯(lián)諧振高壓試驗(yàn)裝置，主要針對10kV、35kV、110kV、220kV、變電站及線路等所有電氣主設(shè)備的交流耐壓試驗(yàn)設(shè)計制造。電抗器采用多只分開設(shè)計，既可滿足高電壓、小電流的設(shè)備試驗(yàn)條件要求，又能滿足低電壓的交流耐壓試驗(yàn)要求，具有較寬的適用范圍，是地、市、縣級高壓試驗(yàn)部門及電力安裝、修試工程單位理想的耐壓設(shè)備。南澳電氣 NAXZ全自動變頻串聯(lián)諧振高壓試驗(yàn)裝置產(chǎn)品別名變頻諧振、變頻串聯(lián)諧振、串聯(lián)諧振、串聯(lián)諧振變壓器、串聯(lián)諧振試驗(yàn)設(shè)備、便攜式電纜耐壓試驗(yàn)裝置、串聯(lián)諧振系統(tǒng) 南澳電氣 NAXZ全自動變頻串聯(lián)諧振高壓試驗(yàn)裝置產(chǎn)品特性 1、所需電源容量大大減小。串聯(lián)諧振電源是利用諧振電抗器和被試品電容諧振產(chǎn)生高電壓和大電流的，在整個系統(tǒng)中，電源只需要提供系統(tǒng)中有功消耗的部分，因此，試驗(yàn)所需的電源功率只有試驗(yàn)容量的1/Q。 2、設(shè)備的重量和體積大大減少。串聯(lián)諧振電源中，不但省去了笨重的大功率調(diào)壓儀器和普通的大功率工頻試驗(yàn)變壓器，而且諧振激磁電源只需試驗(yàn)容量的1/Q，使得系統(tǒng)重量和體積大大減少，一般為普通試驗(yàn)儀器的1/10-1/30。 3、改善輸出電壓的波形。諧振電源是諧振式濾波電路，能改善輸出電壓的波形畸變，獲得很好的正弦波形，有效的防止了諧波峰值對試品的誤擊穿。 4、防止大的短路電流燒傷故障點(diǎn)。在串聯(lián)諧振狀態(tài)，當(dāng)試品的絕緣弱點(diǎn)被擊穿時，電路立即脫諧，回路電流迅速下降為正常試驗(yàn)電流的1/Q。而并聯(lián)諧振或者試驗(yàn)變壓器方式做耐壓試驗(yàn)時，擊穿電流立即上升幾十倍，兩者相比，短路電流與擊穿電流相差數(shù)百倍。所以，串聯(lián)諧振能有效的找到絕緣弱點(diǎn)，又不存在大的短路電流燒傷故障點(diǎn)的憂患。 5、不會出現(xiàn)任何恢復(fù)過電壓。試品發(fā)生擊穿時，因失去諧振條件，高電壓也立即消失，電弧即刻熄滅，且恢復(fù)電壓的再建立過程很長，很容易在再次達(dá)到閃絡(luò)電壓前斷開電源，這種電壓的恢復(fù)過程是一種能量積累的間歇振蕩過程，其過程長，且不會出現(xiàn)任何恢復(fù)過電壓。南澳電氣 NAXZ全自動變頻串聯(lián)諧振高壓試驗(yàn)裝置產(chǎn)品參數(shù) 1.變頻電源(一臺)： 1.1技術(shù)參數(shù) 1.1.1 額定功率：5.5-500kW； 1.1.2 輸入電壓：三相 380V±5% 或單相220V±5% 45～65Hz，當(dāng)電源為380V時，可做額定負(fù)載試驗(yàn)；當(dāng)電源為220V時，只可做1/2負(fù)載試驗(yàn)。 1.1.3 輸出電壓：0～400V可調(diào) 1.1.4 輸出電壓頻率：20～300Hz 1.1.5 頻率調(diào)節(jié):0.1Hz步進(jìn)可調(diào) 1.1.6 頻率不穩(wěn)定度:≤0.02% 1.1.7 輸出電流：13～1250A 2. 高壓電抗器 2.1 技術(shù)參數(shù) 2.1.1 額定工作電壓：0～1000kV 2.1.2 額定工作電流：1～10A 2.1.3 額定電感量：30～600H 2.1.4 連續(xù)工作時間：15min 2.1.5 溫升：小于60℃ 2.1.6 工作頻率：20~300Hz 3. 激勵變壓器(一臺)： 3.1 技術(shù)參數(shù) 3.1.1 額定容量：3.5～500kVA 3.1.2 輸入電壓：當(dāng)容量在5.5～20kW輸入是200V/400V 當(dāng)容量在20～500kW輸入是400V 4. 電容分壓器(一臺)： 4.1 技術(shù)參數(shù) 4.1.1自身電容量：300～5000pF 4.1.4額定電壓:10～1000kV 4.1.2工作頻率：20～300Hz 4.1.3不確定度：1.0% Product introduction NAXZ series frequency series resonant is mainly designed for 10kV, 35kV, 110kV, 220kV, substations and loop and all electrical main AC voltage test equipment design and manufacturing. Reactor uses more than just separate design, not only can meet the high-voltage, low-current device test conditions requirements, but also can meet the low voltage AC voltage testing requirements. It has a wide scope, is the ground, city, county high voltage test departments and electrical installation, repair and test engineering units ideal for pressure equipment. Also called name Frequency resonant, frequency series resonant , series resonance, series resonant transformer, series resonant testing device, portable cable withstands testing device, series resonant system The Characteristics of the products 1,Reduce the power capacity greatly. The series resonant power supply utilizing the resonant reactor and the sample capacitor resonant generate high voltage and high current. In the whole system , the power system only provide the part of the active consumption, therefore, the needed power is 1 / Q of the testing capacity. 2,Reducing the weight and volume greatly. In the series resonant power supply , not only to eliminate bulky power regulator, power instruments and other common frequency test transformer and resonant excitation power simply test the capacity of 1 / Q, making the system significantly reduces the weight and volume , usually common test instrument 1/10-1/30 . 3,To improve the output voltage waveform. Resonant power supply is a resonant filter circuit , can improve the output voltage waveform distortion, get a good sine wave , effectively prevent the harmonic peak error for the test product breakdown . 4,To prevent large short-circuit current fault burns. In the series-resonant state, when the test insulation breakdown weaknesses , the circuit is immediately off the harmonic , the loop current is rapidly decreased to normal test current of 1 / Q. The parallel resonant transformer test or way of doing pressure test , the breakdown current immediately increased several times, both compared to short-circuit current and the breakdown current difference between the number of times. Therefore, the series resonance can effectively find insulation weaknesses, without the presence of large short-circuit current suffering burns the point of failure . 5,There will be no recovery over voltage. Sample breakdown occurs when the loss of resonance conditions , the high voltage is also disappear immediately , instantly extinguish the arc , and the recovery voltage re- building process is very long, it is easy to reach flash over voltage again before disconnecting the power , this voltage is restored process is an intermittent oscillation energy accumulation process , the process is long . The parameters of the products 1 Variable frequency power source( 1piece ) : 1.1 Technical Parameters 1.1.1 Rated power :5.5-500kW; 1.1.2 Input voltage: three-phase 380V ± 5% or single-phase 220V ± 5% 45 ~ 65Hz, when the power supply is 380V, can test the rated load ; when the power supply is 220V, only can test 1/ 2 load. 1.1.3 Output voltage : 0 ~ 400V adjustable 1.1.4 Output voltage frequency : 20 ~ 300Hz 1.1.5 Frequency adjustment : 0.1Hz step adjustable 1.1.6 Frequency instability : ≤ 0.02% 1.1.7 Output Current : 13 ~ 1250A2. High Voltage Reactor 2.1 Technical Parameters 2.1.1 rated voltage :0-1000kV 2.1.2 Rated current :1-10A 2.1.3 Nominal inductance :30-600H 2.1.4 Continuous working time : 15min 2.1.5 Temperature rise : less than 60 degrees 2.1.6 Operating frequency : 20 ~ 300Hz 3. Excitation transformer ( a ) : 3.1 Technical parameters 3.1.1 Rated Capacity :3.5-500kVA 3.1.2 Input voltage: 5.5-20kW capacity when input is 200V/400V, when the capacity is in the 20-500kW 400V input 4 capacitive divider ( a ) : 4.1 Technical Parameters 4.1.1 own capacity :300-5000pF 4.1.4 Rated voltage :10-1000kV 4.1.2 Operating frequency : 20 ~ 300Hz 4.1.3 Uncertainty : 1.0%

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