塑料電氣強度擊穿電壓試驗儀

塑料電氣強度擊穿電壓試驗儀整機組成：
1、升壓部件： 2、動(dòng)部件： 3、檢測部件： 4、計算機軟件： 5、試驗電極：

塑料電氣強度擊穿電壓試驗儀試驗變壓器
1.1 輸出電壓： AC ?0-10000V，DC 0-10000V；
1.2 輸入電壓：220v
1.3 額定容量下，長(cháng)期連續運行；
1.4 zui大輸出電壓下，PD≤1pC；
1.5 噪聲≤58dB（1m位置測量）。
2 調壓器
2.1 輸入電壓：220V；
2.2 額定容量：2kVA（如果有補償，可以小于15kVA，但不小于10kVA）；
2.3額定容量下，長(cháng)期連續運行；
2.4噪聲≤58dB（1m位置測量）;
2.5 電動(dòng)調壓。
3 高壓分壓器
3.1 高壓臂電容：1nF；
3.2 分壓比：700（可討論，結合測量控制系統）；
3.3 額定容量下，長(cháng)期連續運行；
3.4 zui大輸出電壓下，PD≤1pC；
3.5 測量精度：1%。
4 計算機控制
4.1 藍牙連接；
4.2 安全保護；
5 試驗電極
5.1 滿(mǎn)足GB/T 1408-2006 絕緣材料電氣強度試驗方法；
5.2 滿(mǎn)足GB/T 1695-2005 硫化橡膠工頻電壓擊穿強度和耐壓強度試驗。

要求：
1、設備輸入電壓：交流   100KV(普通試驗室電源均可兼容)；
2、試驗電壓方式：交流   0--100KV；直流0--100KV；
3、電器容量：10KV
4、試驗方法：0-100KV全量程可調(采用高精度電壓采樣器件)；
5、擊穿及耐壓試驗升壓速率：
0.1KV/S0.2KV/S0.5KV/S1.5KV/S  2KV/S2.5KV/S3.0KV/S(此項滿(mǎn)足標準里面極快速升壓試驗要求)；
 

試驗方法

1、應采用成品電線(xiàn)的試樣按28.2—28.9所述的方法做試驗。應試驗絕緣線(xiàn)、絕緣扁電纜或護套電纜的絕緣線(xiàn)芯。在護套電纜的情況下，應取出絕緣線(xiàn)芯并獨立于護套電纜做試驗。

2、對于每個(gè)需進(jìn)行評價(jià)的電線(xiàn)樣品，應取6個(gè)絕緣線(xiàn)或護套電纜的絕緣線(xiàn)芯試樣做試驗。每個(gè)試樣應長(cháng)24in（610mm）。其中3個(gè)試樣在未老化狀態(tài)下做試驗，另3個(gè)試樣應經(jīng)過(guò)烘箱處理后做試驗。

3、三個(gè)用于烘箱處理的直線(xiàn)狀試樣應放進(jìn)烘箱中進(jìn)行處理，處理時(shí)間和烘箱溫度應與本標準第14節：絕緣和護套末老化和烘箱老化后物理性能所述和試驗*。

4、烘箱處理以后，應將這3個(gè)試樣放在室溫的靜止空氣中泠卻16-96小時(shí)然后做試驗。泠卻期結束以后，同時(shí)采用末老化和烘箱老化的試樣做試驗。采用金屬箔包每個(gè)試樣中央的12in（305mm）的部分。

5、除了扁電線(xiàn)外，應將每個(gè)試樣的金屬箔繞包部分繞在金屬試棒上6個(gè)完整的緊密相連的圈。試棒直徑應為試樣外徑的2倍或是0.19in（5mm）取二者中較大者，每個(gè)由此形成地螺旋線(xiàn)的端頭應松松地纏繞在一起或是采用粘接帶固定在一起以防止退繞。扁電線(xiàn)試樣應圍繞直徑等于短徑2倍的試棒彎曲成U形并與試棒接觸至少180°。

6、介電試驗機應能提供50或是60HZ連續可變從零至電線(xiàn)試樣額定電壓5倍的輸出電壓。電路中接上試樣后，輸出電壓的峰值因數（峰值除以均方根值）應等于純正波上半部輸出范圍峰值因數的95-105%。應使用電壓表連續臨測輸出電壓，該電壓表的響應時(shí)間在規定的升壓速度下不會(huì )造成大于1%滿(mǎn)盤(pán)的滯后的誤差。其總電壓精度不會(huì )造成大于5%的誤差。試驗機變壓器可輸出的zui大電流應保證可進(jìn)行試樣的擊穿試驗而示發(fā)持加載電流引起斷路器跳閘現象。

7、將介電試驗機的一根試驗引接到作為一個(gè)電極的試樣的導體上，并另一根試驗引接到作為另一個(gè)電極的金屬試棒上，電壓應從零開(kāi)始上升至28.1

材料：
主要適用于固體絕緣材料如：電線(xiàn)套管、樹(shù)脂和膠、浸漬纖維制品、云母及其制品、塑料薄膜、陶瓷、玻璃、絕緣漆、硫化橡膠、電纜紙、絕緣漆漆膜、硬質(zhì)橡膠、紙板等絕緣介質(zhì)在空氣或液體介質(zhì)中，測量工頻（48~62Hz）或對應直流電壓下?lián)舸姸群湍碗妷簳r(shí)間。適用于連續均勻升壓或逐級升壓的方式，對試樣施加交流/或直流，電壓直至擊穿，測量擊穿電壓值，計算試樣的擊穿強度；用迅速升壓的方法，將電壓升到規定值，保持一定的時(shí)間試樣不擊穿，定此時(shí)規定值為試樣的耐電壓值。

Insulation dielectric strength resistance voltage breakdown strength experiment instrument transformer
Output voltage: 1.1 AC?0-10000 - v, DC 0-10000 - v;
1.2 the input voltage: 220 v
1.3 under the rated capacity, long-term continuous operation;
1.4 under the maximum output voltage, PD 1 PC or less;
1.5 noise 58 db (1 m position measurement) or less.
2 voltage regulator
2.1 the input voltage: 220 v;
2.2 nominal capacity: 2 kva, if any compensation, can be less than 15 kva, but not less than 10 kva);
2.3 under the rated capacity, long-term continuous operation;
2.4 noise acuities were 58 db (1 m position measurement);
2.5 the electric voltage regulation.
3 high voltage divider
3.1 high pressure arm capacitance: 1 nf;
3.2 compression ratio: 700 (can be discussed, combined with measuring control system);
3.3 under the rated capacity, long-term continuous operation;
3.4 under the maximum output voltage, PD 1 PC or less;
3.5 accuracy: 1%.
The computer control
4.1 bluetooth connection;
4.2 safety protection;
5 test electrode
5.1 meet the GB/T 1408-2006 insulation dielectric strength test method;
5.2 meet the GB/T 1695-2005 rubber power frequency voltage breakdown strength and compression strength test.

Insulated electrical strength of resistance to voltage breakdown tester machine:
1, booster parts: 2, moving parts: 3, test parts: 4, computer software: 5, test electrode:

Insulation dielectric strength resistance voltage breakdown strength tester requirements:
1, equipment input voltage: ac 100 kv (ordinary laboratory power supply are compatible);
2, the test voltage way: communication 0-100 kv;Dc 0-100 kv;
3, electric capacity: 10 kv
4, test method: 0-100 kv full range adjustable (with high precision voltage sampling device);
5, breakdown and withstand voltage test pressure rise rate:
0.1 KV/S0.2 KV/S0.5 KV/S1.5 KV/S 2 KV/S2.5 KV/S3.0 KV/S (the meet the latest standard extremely fast booster test requirements);

Insulation dielectric strength resistance voltage breakdown strength tester test method

1, the sample of the finished wire should be adopted in the way described in 28.2-28.9 do an experiment.Should be insulated wire, flat cable insulation or sheath cable insulation wire core.Under the condition of the sheathed cable, should remove insulation wire core and is independent of the sheathed cable to do an experiment.

2, for each of the need to evaluate wire samples, should take six insulation or sheath cable insulation wire core sample test.24 in each sample should be long (610 mm).Three samples without aging experiment condition, the other three sample should do after dealing with the oven test.

3, three straight line shape sample should be used to deal with the oven into oven for processing, processing time and drying oven temperature should be with section 14 of this standard: at the end of the insulation and sheath after the aging and oven ageing properties described and experiment are consistent.

4, oven after processing, should put the three samples at room temperature in still air ling but 16-96 hours and then do an experiment.At the end of the ling but after the period, at the same time, the aging and oven ageing test specimens.Using metal foil bag each 12 in the middle of the sample (305 mm).

?5, in addition to the flat wire, each sample should be around the metal foil winding and part of the test bar on six full circle are closely linked.Sample test bar diameter should be 2 times of overall diameter or 0.19 (5 mm) in both in highly actie, each resulting in the end of the helix YingSongSong ground together or use adhesive tape of fixed together to prevent unwinding.Flat wire samples should be 2 times around the diameter is equal to the short diameter of test bar bent into U and contact with the test bar at least 180 °.

Six, dielectric tester should be able to provide 50 or 60 hz continuous variable from zero to wire the sample 5 times rated voltage output voltage.Circuit connected to the sample, after the peak factor of the output voltage divided by the root mean square (peak value) should be equal to the upper pure wave output range 95-105% of the peak factor.Voltmeter should be used in the continuous measurement of the output voltage, the response time of the voltmeter will not result in greater than 1% under the specified speed booster plateful of lag error.The total voltage accuracy will not result in more than 5% of error.Testing machine output the maximum current of transformer should be guarantee for the breakdown of the sample test and send the load current circuit breaker tripping caused phenomenon.

7, will be a test of dielectric tester received as an electrode on the conductor of the specimen, and the other test lead received as another electrode metal test bar, voltage should be starting from scratch up to 28.1

Insulation dielectric strength resistance voltage breakdown strength tester materials:
Is mainly suitable for solid insulating material such as wire casing, resin and rubber, impregnated fiber products, mica and its products, plastic, ceramic, glass, insulating paint, rubber, cable paper, insulating paint film, hard rubber, cardboard in air or fluid medium, such as insulating medium measuring power frequency (48 ~ 62 hz) or the corresponding breakdown strength under dc voltage and voltage withstand time.Apply continuous uniform booster or booster way, step by step toward a sample dc, ac/or until the breakdown voltage, breakdown voltage measurement, calculation of sample breakdown strength;Use the method of rapid booster, e., will increase the voltage to maintain a certain amount of time the sample breakdown, not set the withstand voltage value of the specified value for sample and now.