介電強(qiáng)度50KV電壓擊穿測試儀  介電強(qiáng)度是一種材料作為絕緣體時的電強(qiáng)度的量度.它定義為試樣被擊穿時,單位厚度承受的最大電壓,表示為伏特每單位厚度.物質(zhì)的介電強(qiáng)度越大,它作為絕緣體的質(zhì)量越好.

介電強(qiáng)度，是材料抗高電壓而不產(chǎn)生介電擊穿能力的量度，將試樣放置在電極之間，并通過一系列的步驟升高所施加的電壓直到發(fā)生介電擊穿，以次測量介電強(qiáng)度。盡管所得的結(jié)果是以kv/mm為單位的，但并不表明與試樣的厚度無關(guān)。因此，只有在試樣厚度相同的條件下得到各種材料的數(shù)據(jù)才有可比性。

介電強(qiáng)度50KV電壓擊穿測試儀  軟件功能：

1、試驗過程中可動態(tài)繪制出試驗曲線，試驗的曲線可以多種顏色疊加對比，局部放大，曲線上任意一段可進(jìn)行區(qū)域放大分析；

2、可對試驗數(shù)據(jù)進(jìn)行編輯修改，靈活適用；

3、試驗條件及測試結(jié)果等數(shù)據(jù)可自動存儲；

4、試驗報告格式靈活可變，適用于不同用戶的不同需求；

5、可對一組試驗中曲線數(shù)據(jù)的有效與否進(jìn)行人為選定；

6、試驗結(jié)果數(shù)據(jù)可導(dǎo)入EXECL、WORD文檔編輯；

7、軟件設(shè)備人員管理功能，試驗人員可設(shè)置自己的試驗項目和試驗參數(shù)，設(shè)置自己的試驗內(nèi)容后別人無法進(jìn)入程序；

8、過電流保護(hù)裝置有足夠的靈敏度，能夠保證試樣擊穿時在0.1s內(nèi)切斷電源；

9、儀器運行的持久性:儀器可連續(xù)運行使用，不需為保護(hù)儀器而定期停機(jī)。

電壓擊穿試驗儀,由電腦控制，通過我公司自主研發(fā)的全新智能數(shù)字集成電路系統(tǒng)與軟件控制系統(tǒng)兩部分來完成，使升壓速率真正做到勻速、準(zhǔn)確，并能夠準(zhǔn)確測出漏電電流的數(shù)據(jù)。

本儀器在試驗過程中可對升壓擊穿過程繪制實時曲線，每次試驗的升壓曲線都由不同顏色構(gòu)成，試驗結(jié)束后可疊加對比材料的試驗數(shù)據(jù)重復(fù)性。可以隨時調(diào)取當(dāng)前及歷史試驗數(shù)據(jù)進(jìn)行查看，編輯及修改實驗結(jié)果。

可對軟件設(shè)置密碼，生成密碼保護(hù)，做到專機(jī)專人操作，避免無關(guān)人員誤操作，試驗結(jié)果編輯修改后打印，方便操作更加人性化。

技術(shù)參數(shù)

01、輸入電壓： 交流220 V

02、輸出電壓： 交流0--50 KV  直流0—70 KV   

03、電器容量：5KVA

04、高壓分級：0--5KV；0-10KV；0-20KV

05、升壓速率：100V/S  200V/S  500V/S  1000V/S 2500V/S 3000V/S

06、試驗方式：直流試驗：1、擊穿試驗2、梯度升壓  3、耐壓試驗

           交流試驗：1、擊穿試驗  2、梯度升壓  3、耐壓試驗

07、擊穿判停方式：1、電壓判停2、電流判停

08、電壓試驗精度： ≤1％

09、電極規(guī)格： ￠25mm兩個   ￠75mm一個

10、主機(jī)尺寸：長寬高-800*800*1450（MM）

整機(jī)組成：

升壓部件：由調(diào)壓器和高壓變壓器組成0～50KV的升壓部分。動部件：由步進(jìn)電機(jī)均勻調(diào)節(jié)調(diào)壓器使加給高壓變壓器的電壓變化。檢測部件：由集成電路組成的測量電路。通過信號線把檢測的模擬信號和開關(guān)信號傳給計算機(jī)。計算機(jī)軟件：通過智能電路把由檢測設(shè)備采集的測控信號傳給計算機(jī)。計算機(jī)根據(jù)采集的信息控制設(shè)備運行并處理試驗結(jié)果。試驗電極：根據(jù)國家標(biāo)準(zhǔn)(1408.1-2006)隨設(shè)備提供三個電極，具體規(guī)格為：Ф25mm?25mm兩個；Ф75mm?25mm一個。（訂做除外）

絕緣介電強(qiáng)度試驗與絕緣電阻測試

絕緣介電強(qiáng)度試驗是在相互絕緣的部件之間或絕緣的部件與地之間,在規(guī)定時間內(nèi)施加規(guī)定的電壓,以此來確定電機(jī)在額定電壓下能否安全工作,能否耐受由于開關(guān)、浪涌及其它類似現(xiàn)象所導(dǎo)致的過電壓的能力,從而評定電機(jī)絕緣材料或絕緣間隙是否合適。如果電機(jī)有缺陷,則在施加試驗電壓后,會產(chǎn)生擊穿放電或損壞。擊穿放電表現(xiàn)為飛弧(表面放電)、火花放電(空氣放電)或擊穿(擊穿放電)現(xiàn)象。過大的漏電流可能引起電參數(shù)或物理性能的改變 。

絕緣介電強(qiáng)度試驗與絕緣電阻測試是不能等同的。清潔、干燥的絕緣體盡管具有高的絕緣電阻,但卻可能發(fā)生不能經(jīng)受絕緣介電強(qiáng)度試驗的故障;反之,一個臟的、損傷的絕緣體,其絕緣電阻雖然低,但在高電壓下也可能不會被擊穿。由于絕緣部件是由不同材料制成或是由不同材料合成的,它們的絕緣電阻各不相同。因此,絕緣電阻的測試不能完全代表對清潔度或無損傷程度的直接量度。但是,這種測試對確定高溫、潮濕、污物、氧化或揮發(fā)性材料等對絕緣特性影響程度是極為有益的 。

事實上,一臺由于過熱而使絕緣材料已經(jīng)老化變脆的電機(jī),其絕緣電阻仍可高達(dá)100MΩ,但卻無法通過絕緣介電強(qiáng)度試驗。絕緣電阻測試對絕緣材料受潮特別敏感,對絕緣材料老化則顯得力不從心。

絕緣介電強(qiáng)度試驗一般采用50Hz正弦波交流電,而絕緣電阻測試均采用直流電。

滿足標(biāo)準(zhǔn)：

儀器依據(jù)以下標(biāo)準(zhǔn)中對擊穿電壓部分的要求制造

GB/T 1408-2006絕緣材料電氣強(qiáng)度試驗方法

GB/T1695-2005硫化橡膠工頻電壓擊穿強(qiáng)度和耐電壓強(qiáng)度試驗

GB/T3333電纜紙工頻電壓擊穿試驗方法

HG/T 3330絕緣漆漆膜擊穿強(qiáng)度測定法

GB12656電容器紙工頻電壓擊穿試驗方法

ASTM D149固體電絕緣材料在工業(yè)電源頻率下的介電擊穿電壓和介電強(qiáng)度的試驗方法.

電氣強(qiáng)度（Dielectric strength），指擊穿電壓比上擊穿樣品的厚度等于樣品的電氣強(qiáng)度。

在物理學(xué)中，術(shù)語電氣強(qiáng)度具有以下含義：

絕緣材料中，純材料在理想條件下可以承受的最大電場而不會損壞（即不會經(jīng)歷其絕緣性能的失效）。

對于電介質(zhì)材料和電極的具體配置，導(dǎo)致?lián)舸┑淖钚∈┘与妶觯矗┘拥碾妷撼噪姌O分離距離）。

材料的理論電氣強(qiáng)度是大塊材料的固有屬性，并且與施加電場的材料或電極的構(gòu)造無關(guān)。這種“固有介電強(qiáng)度”對應(yīng)于在理想實驗室條件下使用純物質(zhì)測量的值。在擊穿時，電場釋放束縛的電子。如果施加的電場足夠高，來自背景輻射的自由電子可能會加速到在被稱為雪崩擊穿的過程中與中性原子或分子碰撞期間釋放額外電子的速度。擊穿發(fā)生得相當(dāng)突然（通常在幾納秒），導(dǎo)致通過材料形成導(dǎo)電路徑和破壞性放電。對于固體材料，擊穿事件嚴(yán)重降低，甚至破壞其絕緣能力。

適用材料：

主要適用于固體絕緣材料如：電線套管、樹脂和膠、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?qū)?yīng)直流電壓下?lián)舸?qiáng)度和耐電壓時間。適用于連續(xù)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(qiáng)度；用迅速升壓的方法，將電壓升到規(guī)定值，保持一定的時間試樣不擊穿，定此時規(guī)定值為試樣的耐電壓值。軟件系統(tǒng)操作方便，性能穩(wěn)定，安全可靠。

基本功能：

   電壓擊穿試驗儀由電腦控制，數(shù)據(jù)采集方式通過光電隔離，有效解決試驗過程中的抗干擾問題，軟件操作使用方便，能夠?qū)崟r顯示動態(tài)曲線，同時升壓速率無級可調(diào)，可以根據(jù)自己的需要進(jìn)行升壓速率調(diào)節(jié)，調(diào)節(jié)范圍在0.1KV-3KV/S，使升壓速率真正做到勻速、準(zhǔn)確，并能夠準(zhǔn)確測出漏電電流的數(shù)據(jù)。可實時繪制試驗曲線，顯示試驗數(shù)據(jù)，判斷準(zhǔn)確，并可保存，分析，打印試驗數(shù)據(jù)。并且能夠自動判別試樣擊穿并采集擊穿電壓數(shù)據(jù)及泄露電流，同時能夠在擊穿的瞬間電壓迅速降低自動歸零。軟件系統(tǒng)操作方便，性能穩(wěn)定，安全可靠。

試驗方式：

1、絕緣試樣空氣中擊穿、耐壓試驗或階梯試驗；

2、絕緣試樣浸油中擊穿、耐壓試驗或階梯試驗；

注：根據(jù)用戶要求，可定制其他試驗方式。

安全注意事項：開機(jī)之前，敬請仔細(xì)閱讀本使用指南，以防止出現(xiàn)對操作人員的意外傷害或?qū)x器的損壞等的事件。操作前，請閱讀“安裝與設(shè)置”，保證對儀器各部件的正確安裝與連接。在第一次操作前，務(wù)必請有操作經(jīng)驗的人員進(jìn)行指導(dǎo)，防止誤操作造成意外事件的發(fā)生。電擊危險： 確保在安裝或維修該儀器之前使所有導(dǎo)線斷電，防止在帶電情況下，對人員或設(shè)備造成傷害。

Dielectric strength is a measure of the electrical strength of a material as an insulator It is defined as the maximum voltage per unit thickness that a sample can withstand when it is broken down, expressed in volts per unit thickness The higher the dielectric strength of a substance, the better its quality as an insulator

Dielectric strength is a measure of a material's ability to withstand high voltage without generating dielectric breakdown. The sample is placed between electrodes and the applied voltage is increased through a series of steps until dielectric breakdown occurs, in order to measure the dielectric strength. Although the results obtained are in kV/mm units, it does not indicate that they are independent of the thickness of the sample. Therefore, comparability of data for various materials can only be obtained under the condition of the same sample thickness.

Software features:

1. During the experiment, the test curve can be dynamically drawn, and the test curve can be stacked and compared in multiple colors, with local magnification. Any section on the curve can be analyzed for regional magnification;

2. Can edit and modify experimental data, flexible and applicable;

3. The experimental conditions and test results can be automatically stored;

4. The format of the test report is flexible and adaptable, suitable for the different needs of different users;

5. The validity of curve data in a set of experiments can be artificially selected;

6. The experimental result data can be imported into EXECL and WORD documents for editing;

7. The software equipment personnel management function allows testers to set their own test items and parameters. After setting their own test content, others cannot access the program;

8. The overcurrent protection device has sufficient sensitivity to ensure that the power supply is cut off within 0.1 seconds when the sample is broken down;

9. Durability of instrument operation: The instrument can operate continuously without the need for regular shutdowns to protect it.

The voltage breakdown tester is controlled by a computer and is completed through our company's independently developed new intelligent digital integrated circuit system and software control system, ensuring that the boosting rate is truly uniform and accurate, and can accurately measure the data of leakage current.

This instrument can draw real-time curves for the voltage breakdown process during the experiment. The voltage rise curve of each experiment is composed of different colors, and after the experiment, the repeatability of the test data of the comparative material can be superimposed. You can access current and historical experimental data at any time to view, edit, and modify experimental results.

Passwords can be set for the software, password protection can be generated, and dedicated personnel can operate it to avoid accidental operations by unrelated personnel. The test results can be edited, modified, and printed for more convenient and user-friendly operation.

technical parameter

01. Input voltage: AC 220 V

02. Output voltage: AC 0-50 KV DC 0-70 KV

03. Electrical capacity: 5KVA

04. High voltage classification: 0-5KV; 0-10KV; 0-20KV

05. Boost rate: 100V/S 200V/S 500V/S 1000V/S 2500V/S 3000V/S

06. Test method: DC test: 1. Breakdown test 2. Gradient boost test 3. Voltage withstand test

Communication test: 1. Breakdown test 2. Gradient boosting test 3. Voltage withstand test

07. Breakthrough detection and stopping method: 1. Voltage detection and stopping 2. Current detection and stopping

08. Voltage test accuracy:≤1%

09. Electrode specifications: Two pieces of ? 25mm and one piece of ? 75mm

10. Host size: length, width, height -800 * 800 * 1450 (MM)

Overall composition:

Boosting component: The boosting part of 0-50KV is composed of a voltage regulator and a high-voltage transformer. Moving parts: The voltage regulator is uniformly adjusted by a stepper motor to change the voltage applied to the high-voltage transformer. Detection component: a measurement circuit composed of integrated circuits. Send the detected analog signals and switch signals to the computer through signal lines. Computer software: transmits the measurement and control signals collected by the detection equipment to the computer through intelligent circuits. The computer controls the operation of the equipment based on the collected information and processes the test results. Test electrodes: According to the national standard (1408.1-2006), three electrodes are provided with the equipment, with specific specifications as follows:ФTwo 25mm x 25mm;ФOne 75mm x 25mm. (Excluding customization)

Insulation dielectric strength test and insulation resistance test

The insulation dielectric strength test is the application of a specified voltage within a specified time period between insulated components or between insulated components and ground, in order to determine whether the motor can operate safely at rated voltage and whether it can withstand overvoltage caused by switches, surges, and other similar phenomena, and to evaluate whether the insulation material or insulation gap of the motor is suitable. If the motor has defects, breakdown discharge or damage may occur after applying the test voltage. The breakdown discharge is manifested as flashover (surface discharge), spark discharge (air discharge), or breakdown (breakdown discharge) phenomenon. Excessive leakage current may cause changes in electrical parameters or physical properties.

The insulation dielectric strength test and insulation resistance test cannot be equated. Although clean and dry insulators have high insulation resistance, they may fail to withstand insulation dielectric strength tests; On the contrary, a dirty and damaged insulator, although its insulation resistance is low, may not be broken down under high voltage. Due to the fact that insulation components are made of different materials or synthesized from different materials, their insulation resistance varies. Therefore, the testing of insulation resistance cannot fully represent a direct measurement of cleanliness or undamaged degree. However, this type of test is crucial for determining the impact of high temperature, humidity, dirt, oxidation, or volatile materials on insulation

Test method:

1. Air breakdown, withstand voltage test or step test for insulation samples;

2. Electrical breakdown, withstand voltage test or step test of insulation samples immersed in oil;

Note: Other testing methods can be customized according to user requirements.

主要產(chǎn)品有：

拉力試驗機(jī)，                     塑料球壓痕硬度計

維卡熱變形試驗儀，               體積表面電阻率測試儀

海綿泡沫落球回彈試驗機(jī)，         海綿泡沫拉伸強(qiáng)度試驗機(jī)

耐壓試驗機(jī)，                  介電常數(shù)測試儀

海綿泡沫壓陷硬度測驗儀，         介質(zhì)損耗測試儀

海綿泡沫疲勞壓陷試驗機(jī)，         薄膜沖擊試驗機(jī)

熔融指數(shù)儀，                     無轉(zhuǎn)子硫化儀

電壓擊穿試驗儀，                 摩擦系數(shù)儀

低溫脆性沖擊試驗儀               阿克隆磨耗試驗機(jī)等。