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    高壓漏電起痕試驗(yàn)機(jī)-6000V

    價(jià)格:38450元瀏覽:174次聯(lián)系:劉元元 / 15132636097 / 企業(yè):北京北廣精儀儀器設(shè)備有限公司留言店鋪收藏

    高壓漏電起痕試驗(yàn)機(jī)-6000V  summary:

    Under the influence of humidity and impurities in electrical products, insulation leakage may occur between charged parts of different polarities or between charged parts and grounded metals, resulting in electric arcs that can cause breakdown and short circuits in electrical appliances or material erosion due to discharge, and even ignite and cause fires. Leakage tracing test is a destructive test conducted on insulation materials to simulate the above situation. It is used to measure and evaluate the relative resistance of insulation materials to leakage tracing under the action of electric field and impurity water at a specified voltage. It is suitable for solid electrical insulation materials and products of electrical and electronic products, household appliances, such as relay sockets, transfer switch covers, contactors, etc.

    高壓漏電起痕試驗(yàn)機(jī)-6000V  概述:

    在電器產(chǎn)品受潮濕和雜質(zhì)環(huán)境的影響下,不同極性帶電部件之間或帶電部件與接地金屬之間可能會(huì)引起絕緣上的漏電,產(chǎn)生的電弧對(duì)電器造成擊穿短路或由于放電使材料電蝕損,甚至起燃導(dǎo)致火災(zāi)。漏電起痕試驗(yàn)就是模擬上述情況對(duì)絕緣材料進(jìn)行的一種破壞性試驗(yàn),用以測(cè)量和評(píng)定在規(guī)定電壓下,絕緣體在電場(chǎng)和含雜質(zhì)水的作用時(shí)的相對(duì)耐漏電起痕性,適用于電工電子產(chǎn)品、家用電器的固體電器絕緣材料及其產(chǎn)品,如:繼電器插座、轉(zhuǎn)換開(kāi)關(guān)蓋、接觸器等……。

    performance index

    1. Electrode: 0.5mm thick Material: Stainless steel;

    2. Distance between upper and lower electrodes: 50.0mm?0.1;

    3. Test voltage: adjustable from 100V to 6000V;

    4. Voltage regulator: Output: adjustable from 0 to 250V, capacity 5KVA;

    5. Test Transformer: Capacity 5KVA, maximum output voltage AC6000V (or DC6000V optional);

    6. High precision voltage regulator: output AC220V power 6000W, accuracy?1%;

    7. When the circuit current is 60mA, cut off the voltage output;

    8. Test time: 6 hours;

    9. Dropping accuracy: 0.5%;

    10. Voltage stability:?1%;

    11. Trace detection: According to the standard GB/T653-2003/4.1.2, apply voltage (2.5kV, 3.5kV, and 4.5kV) to the sample and drip the contaminated liquid at a certain flow rate. If the current is below 60mA for 6 hours without current leakage, it is considered to have passed through;

    12. Dropping device:

    Using a Leifu precision peristaltic pump, the flow range is 0.00185 to 20 milliliters per minute, the working speed is 0.1 to 50 revolutions per minute, and the flow accuracy error is:< 0.5%;

    13. Output voltage: AC/DC (switchable)

    14. Number of experimental groups: Five groups

    15. Control device: using Siemens PLC Taiwan Weilun touch screen control, precise control, simple operation, fully humanized design, test results

    The beam automatically generates reports, and the panel thermal printer can print test results in a timely manner;

    15. Dimensions (mm): 710 (width)?365 (depth)?760 (height) Box volume: 0.1m3

    16. Chassis: Made of SUS304 stainless steel (brushed surface);

    17. The sewage tank is made of 316 stainless steel and equipped with a sealing device.

    The time constant of the drip device can be adjusted to achieve precise control of the drip volume and drip time interval.

    Configuration: It is recommended to choose an electronic weighing device

    特點(diǎn):

    試驗(yàn)儀由試驗(yàn)部分和控制部分組成采用一體化設(shè)計(jì),方便現(xiàn)場(chǎng)安裝和調(diào)試。試驗(yàn)箱外殼及結(jié)構(gòu)件采用S304不銹鋼或黃銅制造;電極頭為不銹鋼,耐高溫耐腐蝕;滴液計(jì)數(shù)準(zhǔn)確,控制系統(tǒng)穩(wěn)定可靠。

    高電壓起痕試驗(yàn)機(jī)(含高電壓發(fā)生器)

    依據(jù)標(biāo)準(zhǔn):GB/T6553-2003

    characteristic:

    The testing instrument consists of an experimental part and a control part, designed in an integrated manner for easy on-site installation and debugging. The outer shell and structural components of the test chamber are made of S304 stainless steel or brass; The electrode head is made of stainless steel, which is resistant to high temperature and corrosion; Accurate droplet counting and stable and reliable control system.

    High voltage trace testing machine (including high voltage generator)

    According to the standard: GB/T6553-2003

     

     

    高壓漏電起痕測(cè)試中交直流電壓的切換需要結(jié)合測(cè)試目的、設(shè)備能力及標(biāo)準(zhǔn)要求進(jìn)行綜合調(diào)整。

    以下是北廣精儀儀器設(shè)備有限公司的具體步驟和注意事項(xiàng):

     

     

    1.理解測(cè)試背景與目的

    高壓漏電起痕漏電起痕(GBT6553-2024)(Tracking):指絕緣材料在電場(chǎng)和污染物(如濕氣、導(dǎo)電塵埃)共同作用下,表面逐漸形成碳化導(dǎo)電通路的現(xiàn)象。測(cè)試目的是評(píng)估材料在高壓下的絕緣耐久性。

    交/直流差異:

    交流(AC):電壓周期性變化,導(dǎo)致材料表面放電更頻繁,易產(chǎn)生局部電弧。

    直流(DC):電壓方向恒定,可能加速離子遷移,形成穩(wěn)定漏電路徑。

     

     

    2.切換交直流電壓的關(guān)鍵步驟

    (1)設(shè)備配置

    測(cè)試設(shè)備要求:需具備交直流輸出功能的高壓電源(如可編程高壓發(fā)生器),并配備漏電流監(jiān)測(cè)模塊。

    電路切換:

    手動(dòng)切換:通過(guò)物理開(kāi)關(guān)選擇AC或DC輸出(需斷電操作)。

    自動(dòng)切換:使用可編程電源,通過(guò)軟件控制輸出模式(需確保設(shè)備支持無(wú)縫切換)。

     

    (2)參數(shù)調(diào)整

    電壓等效性:需根據(jù)標(biāo)準(zhǔn)調(diào)整電壓等級(jí)。例如:

     IEC 60112標(biāo)準(zhǔn)(交流測(cè)試):通常使用100~600V AC。

     直流等效測(cè)試:若標(biāo)準(zhǔn)未明確,需通過(guò)實(shí)驗(yàn)確定等效直流電壓(可能需提高至1.2~1.4倍交流有效值)。

    電流限制:設(shè)置過(guò)流保護(hù)閾值,防止材料擊穿。

     

    3)測(cè)試條件適配

    -環(huán)境控制:保持溫濕度恒定(如23℃/50% RH),避免干擾。

    -污染物施加:按標(biāo)準(zhǔn)使用電解液(如NH?Cl溶液),確保交/直流測(cè)試條件一致。

     

    3.遵循測(cè)試標(biāo)準(zhǔn)

    -常見(jiàn)標(biāo)準(zhǔn):

    IEC 60112:規(guī)定交流電壓下的相對(duì)漏電起痕指數(shù)(CTI)測(cè)試。

    ASTM D3638:可能涉及直流測(cè)試(需查閱具體版本)。

    標(biāo)準(zhǔn)選擇:若需對(duì)比材料在交直流下的性能,需制定等效測(cè)試方案(如相同能量等級(jí))。

     

    4.安全與操作注意事項(xiàng)

    安全防護(hù):

      -測(cè)試前確保設(shè)備接地,穿戴絕緣裝備。

      -直流測(cè)試時(shí)需注意殘余電荷釋放(使用放電棒)。

    數(shù)據(jù)記錄:

      -記錄電壓類型、失效時(shí)間、漏電流曲線等關(guān)鍵參數(shù)。

      -對(duì)比交直流下起痕路徑形態(tài)差異(如直流可能更易形成線性碳化通道)。

     

    5. 實(shí)際應(yīng)用案例 

    場(chǎng)景1:研發(fā)新材料  

      需分別在交直流下測(cè)試,分析材料抗起痕性能的極化效應(yīng)。

    -場(chǎng)景2:認(rèn)證測(cè)試  

      根據(jù)產(chǎn)品應(yīng)用環(huán)境選擇電壓類型(如直流設(shè)備優(yōu)先DC測(cè)試)。

     

    -常見(jiàn)問(wèn)題解答

    - Q:交直流電壓能否直接等值替換?

     A:不能。需考慮有效值、材料響應(yīng)差異,建議通過(guò)預(yù)實(shí)驗(yàn)確定等效電壓。

    -Q:切換時(shí)是否需更改電極配置?

    A:通常無(wú)需更改,但需清潔電極以避免交/直流殘留影響。

     

    通過(guò)以上步驟,可實(shí)現(xiàn)高壓漏電起痕測(cè)試中交直流電壓的安全、準(zhǔn)確切換,確保測(cè)試結(jié)果的有效性和可比性。實(shí)際操作中需嚴(yán)格遵循設(shè)備手冊(cè)及標(biāo)準(zhǔn)規(guī)范。

     

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