Active Member
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[China]
Address: 4F,Building 7,Optical Valley International Headquarters Industrial Park,No.62,Optical Valley Road,Wuhan,China
Contact name:
Wuhan Huaying Electric Power Tech & Science Co., Ltd |
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2000W 45HZ Ground Resistance Tester Anti Interference Principle
Variation Frequency
1. Product Name:
Grounding resistance tester HYDW-5A
2. Equipment Description:
Model HYDW-5A, Grounding resistance tester for different frequency
ground grid, is the high precision measuring instrument that is
used in measuring the ground resistance and testing related
parameters in substations and other situations. The outstanding
advantages of this instrument are small in size, light in weight,
portable and precise and capability of anti-interfere is strong.
It is a unitary structure with a built-in frequency conversion
power module and the output power supply is adjustable. The
frequency can be changed to 45Hz or 55Hz. The Built-in high-speed
processor core adopts high-end digital filtering technology has
solved the problem of accurate measurement under the disturbance of
electric field by avoiding the influence of power frequency
electric field.
A large number of field tests and customer feedbacks show that when
being carried out the ground grid test under a bad electromagnetic
environment of the transformer substation, the measured data from
Model HYDW-5A are more accurate and stable with good repeatability,
which suggests that Model HYDW-5A is the ideal instrument for
characteristic parameter measurement of the large, mid-sized ground
grids.
3. Technical specification:
1 | | -15℃∽40℃ | RH＜80% |
2 | The anti-interference principle | variation-frequency method
| |
3 | power source | AC 220V±10% | Allowable generator |
4 | Measured output current | Adjustable: 1A～5A | |
5 | Measured output voltage | 0V～400V | |
6 | Test power frequency | 45HZ/55HZ | |
7 | Rated output | 2000W | |
8 | Resolution | Ground impedance : 0.0001 | |
Impedance angle:0.0001° | |||
9 | Accuracy | Ground impedance:±(1%*readout+0.002) | |
Impedance angle:±(1%*readout+0.02°) | |||
10 | Resistance measurement range | 0.001Ω～5Ｋ | |
11 | Overall Dimensions | 370(L)×295(W)×358(H) | |
12 | Memory size | 100sets / Support U disk data storage | |
13 | Net Weight | 22 g | |
