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HRVLF-30/1.1
HRVLF-50/5 HRVLF-80/1.1 0.1Hz超低频高压发生器 |
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新一代交流耐压试验仪器,替代谐振耐压装置,用于发电机(电机)、电缆、绝缘子、电力电容器、大型变压器等大容性设备的交流耐压试验。现场、户内试验使用的首选。也可作超低频信号源使用。
△使用0.1Hz超低频的必要性
1、 理论上容量是工频的1/500,真正体积小、重量轻、操作简便。
2、 超低频交流测试不会在绝缘中产生树状间隙。 3、
不会像直流试验那样易损坏电缆。不受试品之电容效应影响。 4、
有害极化电荷不会在测试过程中进入电介质。 △功能特点
1、 采用数字变频技术,微电脑控制,测试过程完全自动化。
2、 大屏幕液晶显示,汉字操作,显示试验波形(正弦波),打印试验报告。
3、 过流过压自动保护,自主知识产权依据电力标准研发和设计制造。
4、 多频率选择:0.1Hz,0.05Hz,0.02Hz,增强了带载能力。 |
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△系列产品的主要技术参数(可根据用户要求定做更高试验电压的试验设备) |
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型 号 |
额定电压 |
带载能力 |
重 量 |
HRVLF-30/1.1
(适用于10kV大容量产品耐压) |
30(40)KV
(峰值)
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0.1Hz,≤1.1uF |
0.05Hz,≤2.2uF |
0.02Hz,≤5.5uF |
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控制器:4kg
升压体:25kg |
HRVLF-50/5
烧(击)穿仪
(适用于10kV特<超>大容量产品耐压) |
50KV
(峰值)
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0.1Hz,≤5uF |
0.05Hz,≤10uF |
0.02Hz,≤25uF |
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控制器:5kg
升压体:60kg |
HRVLF-80/1.1
(适用于35kV大容量产品耐压) |
80(90)KV
(峰值)
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0.1Hz,≤1.1uF |
0.05Hz,≤2.2uF |
0.02Hz,≤5.5uF |
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控制器:5kg
升压体:45kg |
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1、测量精度:2.5%
2、电压正、负峰值误差:≤2.5% 3、电压波形失真度:≤5%
4、使用条件:户内、户外:温度:-10~+40℃;湿度:≤85%RH
5、电源:交流50HZ,220V±5%
6、等效性好:科学理论和试验证明,0.1Hz超低频耐压试验与工频耐压试验具有很好的等效性。 |
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HRVLF系列便携式0.1Hz数字超低频高压发生器试验仪 |
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技术配置和技术参数 |
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型号 |
额定电压 |
带载能力 |
重量 |
用途 |
HRVLF-30 |
30kV
(峰值)
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0.1Hz,≤1.1μF |
控制器:4㎏
尺寸:长*宽*高360*250*230
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10kV电缆、发电机等 |
0.05Hz,≤2.2μF |
升压体:25㎏
尺寸:长*宽*高323*174*323
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0.02Hz,≤5.5μF |
HRVLF-40 |
40kV
(峰值)
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0.1Hz,≤1.1μF |
控制器:5㎏
尺 寸:长*宽*高 360*250*230
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13.8kV电缆、发电机等 |
0.05Hz,≤2.2μF |
升压体:38㎏
尺 寸:长*宽*高 357*208*343
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0.02Hz,≤5.5μF |
HRVLF-50 |
50kV
(峰值
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0.1Hz,≤1.1μF |
控制器:6㎏
尺 寸:长*宽*高 360*250*230
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15.75kV电缆、发电机 |
0.05Hz,≤2.2μF |
升压体:55㎏
尺 寸:长*宽*高 367*210*365
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0.02Hz,≤5.5μF |
HRVLF-60 |
60kV
(峰值)
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0.1Hz,≤1.1μF |
控制器:6㎏
尺 寸:长*宽*高 360*250*230
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18kV电缆、发电机等 |
0.05Hz,≤2.2μF |
升压体:65㎏
尺 寸:长*宽*高 377*220*370
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0.02Hz,≤5.5μF |
HRVLF-70 |
70kV
(峰值)
串联
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0.1Hz,≤1.1μF |
控制器:6㎏
尺 寸:长*宽*高 360*250*230
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20kV电缆、发电机等 |
0.05Hz,≤2.2μF |
升压体:75㎏
尺 寸:长*宽*高 387*240*390 |
0.02Hz,≤5.5μF |
HRVLF-80 |
80kV
(峰值)
串联
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0.1Hz,≤1.1μF |
控制器:8㎏
尺 寸:长*宽*高 360*250*230
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35kV电缆、发电机等 |
0.05Hz,≤2.2μF |
升压体:85㎏
尺 寸:长*宽*高 397*250*490
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0.02Hz,≤5.5μF |
HRVLF-90 |
90kV
(峰值)
串联
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0.1Hz,≤1.1μF |
控制器:9㎏
尺 寸:长*宽*高 360*250*230
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35kV电缆、发电机等 |
0.05Hz,≤2.2μ |
升压体:98㎏
尺 寸:长*宽*高 427*260*590
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0.02Hz,≤5.5μF |
HRVLF-100 |
100kV
(峰值)
串联
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0.1Hz,≤1.1μF |
控制器:9㎏
尺 寸:长*宽*高 360*250*230
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35kV电缆、发电机等
63kV电缆等
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0.05Hz,≤2.2μF |
升压体:118㎏
尺 寸:长*宽*高 457*250*690
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0.02Hz,≤5.5μF |
HRVLF-110 |
110kV
(峰值)
串联
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0.1Hz,≤1.1μF |
控制器:9㎏
尺 寸:长*宽*高
360*250*230
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63kV电缆等 |
0.05Hz,≤2.2μF |
升压体:128㎏
尺 寸:长*宽*高
467*260*790
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0.02Hz,≤5.5μF |
HRVLF-120 |
120kV
(峰值)
串联
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0.1Hz,≤1.1μF |
控制器:9㎏
尺 寸:长*宽*高 360*250*230 |
110kV电缆等 |
0.05Hz,≤2.2μF |
升压体:148㎏
尺 寸:长*宽*高 487*270*890
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0.02Hz,≤5.5μF |
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◆
0.1Hz超低频、工频、变频及直流耐压试验的比较 |
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比较内容 |
工频耐压 |
变频耐压 |
0.1Hz耐压 |
直流耐压 |
等效性 |
好
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好
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好
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差 |
绝缘破坏性 |
小
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小
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小
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大 |
操作安全性
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较低
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较低
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高 |
较低
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试验接线
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复杂
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最复杂
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最简单 |
复杂
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设备体积重量
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最重 |
较重 |
轻 |
最轻 |
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国电华瑞公司推荐:超低频技术文章
[1] [2]
[3] [4]
[5] |
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HRVLF Series of Portable 0.1HZ
Digital Very-low-Frequency High Voltage Tester |
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The new generation
of AC withstand tester, replacing harmonic withstand tester,
is widely used in AC withstand test of large capacity equipments
such as generator, cable, insulator, power capacitor, large
transformer etc. Not only can it be the first choice of
on-site and outdoor testing, but also as the ultra-low frequency
source.
Advantage of 0.1Hz HRVLF series
1、Small volume, light weight, easily to operate. Theoretically
speaking, the capacity is of 1/500 of power Frequency.
2. AC ultra-low frequency tester doesn’t form tree-clearance
in the insulating condition.
3. Unlike DC test, it’s uneasy to destroy cables; meanwhile
the capacitance effect of testing articles has no influence
to it.
4. Pernicious polarization charge would make no way to
dielectric during the testing.
Features of function
1. Adopting digital convention technology and microcomputers
controlling system make the testing process completely
automatic.
2. The large screen of liquid crystal and Chinese input
operating system insure that testing wave-form (Sinusoid
Wave) can be displayed; testing reports can be printed.
3. Auto-protection of over-current and over-voltage, the
research,design and manufacture of independent intellectual
property rights according to power standard
4. Multi-frequency selections (0.1Hz,0.05Hz,0.02Hz) strengthen
the load-bearing capability. |
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Specification
of this series (special order testing equipment is also
available) |
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Type |
Rated voltage |
Carrier load capacity |
Weight |
HRVLF-30/1.1
(applied for 10kv Large capacity product withstand
testing) |
30(40)KV
(peak)
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0.1Hz,≤1.1uF |
0.05Hz,≤2.2uF |
0.02Hz,≤5.5uF |
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Controller:4kg
pressure Booster:25kg |
HRVLF-50/5
Breakdown tester
( applied for 10kv extra Large capacity product withstand
testing |
50KV
(peak)
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0.1Hz,≤5uF |
0.05Hz,≤10uF |
0.02Hz,≤25uF |
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Controller:5kg
pressure Booster:60kg |
HRVLF-80/1.1
(applied for 35kv large capacity product withstand
testing)
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80(90)KV
(peak)
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0.1Hz,≤1.1uF |
0.05Hz,≤2.2uF |
0.02Hz,≤5.5uF |
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controller:5kg
pressure booster:45kg |
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1. Measuring accuracy:
2.5%
2. Voltage error of peak-peak: ≤2.5%
3. Distortion of voltage waveform: ≤5%
4. Using condition: indoor, outdoor: Temperature: -10~+40℃;
Humidity: ≤85%RH
5. Power: AC 50HZ,220V±5%
6. Equivalence: scientific theories and tests can prove
that 0.1Hz ultra-low frequency withstand testing is as equivalent
as industrial frequency withstand testing.
Withstand testing
comparison of 0.1Hz ultra-low frequency, industrial frequency,
abnormal frequency and DC. |
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Items |
Power frequency
hi-pot testing |
Variable frequency
hi-pot testing |
0.1Hz hi-pot testing |
DC hi-pot testing |
Equivalence |
Good
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Good
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Good
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Not so good |
Insulation damage |
Little
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Little
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Little
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Large |
Operating safety
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Relatively low
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Relatively low
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high |
Relatively low
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Test wiring
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Complex
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Most complex
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Simplest |
Complex
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Volume,weight of devices
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Heaviest |
Relatively heavy |
Light |
The lightest |
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Our
recommendation: Related articles of ultra-frequency technology
[1] [2]
[3] [4]
[5] |
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