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1. 适用范围Scope
此规格书适用于交流微波炉电容器
The specification applies to capacitors for Microwave oven operated by rated A.C
2. 执行标准Standard
电容器的结构和性能符合IEC EN61270-1及GB/T18939.1标准.
The construcition and performance of the capacitor shall be certificated by the latest issue IEC EN61270-1 and GB/T18939.1
3. 类型Type
绝缘油浸渍的纸膜复合电容器.
Paper-Film dielectric capacitor of impregnation with insulation oil.
4. 电性能Electrical Characteristics
a. 容量偏差Capacitance Tolerance: ± 3%
b. 损耗Dissipation Factor: ≤0.35%(100Hz)
c. 运行温度Operating Temperature:-10~85℃
d. 储存温度Storage temperature:-25~85℃(用于运输及储存for transportrange of and storage)
e. 运行表面zui高温度Maximum Surface Temperature for operationg: +85℃
f. 放电电阻Discharge Resistance:10 MΩ±20%
g. 介电强度Discharge Strength(Terminal to Terminal ):10750VDC 10Sec
h. 介电强度Dielectric Strength (Terminal to Case):7200VAC 10Sec
i. 绝缘电阻Insulation Resistance: ≥3000 MΩ
j. BOV: ≥11.3KVDC
5. 密封性Oil Leakage Test
电容器放置在zui容易暴露渗漏的位置,加热至zui高运行温度保持2小时,无液体渗漏.
Capacitors shall be capable of withstanding at maximum permissible temperature for 2 hours without evidence of the impregnale leaking.
6. 耐久试验Endurance Test
6.1.按照表1测试时,应持续供给50/60Hz的电压.
Permanent voltage from 50/60Hz shall be performed in compliance with Table I.
6.2.试验前按照6.1及6.2测量电容器初始数据.
Capacitor and dissipation factor shall be measured before testing for the initial measurement in accordance with 6-1,6-2..
6.3.试验结束后测量极壳间耐压并满足表2要求.
After the test has been performed,the armature-to-housing test shall be carried out and the capacitance and the dissipation factor shall be measured for final data same method as above Table II.
7. 容量Capacitance
容量测试需在额定功率下且电压不低于500V,个别测试时可以使用不同的功率和电压.
Capacitance shall be measured at the rated frequency and at a voltage of which the rprm value is at least 500V Different voltage.And frequency may be used in individual test.
8. 高温损耗High Temperature Dissipation Factor
高温损耗测量方法如下:
The High temperature dissipation factor shall be measured by the same method as below.
电容运行温度达到85℃,损耗不超过0.3%.
After reaching to the inside as 85℃,it shall not be exceed 0.3%.Dissipation factor shall be measured by making bridge circuit from sinusoidal wave of rated frequency.It shall not be exceed 0.3%.
正常测试或随机测试:在额定功率和频率下
-Normal Test of Random Test:at rated voltage and rated frequency
-个别测试:LCR表,1KHZ
-Individual Test:by L.C.R.Meter at 1KHz
表1 Table I
|
序号NO |
测试种类 Kind of test |
电容温度 Capacitor Temp |
供给电压 Supplied Voltage |
持续时间 Duration |
|
1 |
持续高温 High Temp.Permanent |
85± 3℃ |
2205VAC |
1000±12Hrs |
|
2625VAC |
500±12Hrs |
表2 TableII
|
序号NO |
测试项目Test Item |
合格条件 Specification |
|
1 |
外观Appearance |
无损坏Shall not have any defect on visual |
|
2 |
容量Capacitance |
变化不超过初始测量值的5% Difference ratio of capacitance is no more than ±5% Between initial and final stage of test |
|
3 |
高温损耗High TEMP.Dissipation Factor |
变代不超过初始测量值的0.05% Increase rate of dissipation factor shall be less than 0.05% between the initial and final stage of test |
