Product Overview & Applications
Overview:
HM3001 Earth Grid Resistance Tester is a high-precision testing instrument used in various fields such as substations to test grounding resistance and related parameters. The instrument has the characteristics of small volume, light weight, convenient carrying, strong anti-interference performance, high accuracy, etc.
Industrial Applicaton:
1. Electrical Power Substations & Switchyards:
Ensure fault current is safely diverted into the earth during a lightning strike or short-circuit event.
Prevent dangerous step and touch potentials that could electrocute personnel.
Provide a reference point for sensitive equipment.
2.Telecommunication Sites and Data Centers
Surges: Caused by lightning strikes or power grid switching.
Electromagnetic Interference (EMI): A proper ground provides shielding.
3. Large Industrial Plants and Manufacturing Facilities
Chemical/Petrochemical Plants: Grounding is critical for preventing sparks that could ignite flammable atmospheres.
Steel Mills & Manufacturing: Large motors and variable frequency drives (VFDs) generate electrical noise and require a robust ground for safety and proper operation.
4.Transportation Infrastructure
Railway Substations and Signaling Systems: Essential for safe train operation and signal integrity.
Airport Runway Lighting and Control Towers: Protects against lightning strikes and ensures navigational aids function correctly.
5.Wind and Solar Farms
Wind Turbines: Each turbine has its own ground grid, which is often tied to a larger farm-wide grid. The HM3001 measures the effectiveness of the entire system.
Solar Inverter Stations: These are similar to small substations and require a low-resistance ground to protect expensive inverters and transformers.
6. Lightning Protection Systems for Large Buildings: For large facilities like hospitals, skyscrapers, and sports stadiums.
Features & Advantages
- Full-touch super-large liquid crystal display
- Frequency Conversion Technology, Accurate Measurement
- DSP high speed processor
- Whole Process Intelligent Measurement and Control
- Mass storage data
- PC Data Processin
Additional Information
|
Category |
Item |
Quantity |
Typical Specification / Notes |
|---|---|---|---|
|
Main Unit |
HM3001 Tester |
1 |
With internal battery |
|
Test Leads |
Current Leads (C1, C2) |
2 |
50 meters each, heavy-duty |
|
Voltage Leads (P1, P2) |
2 |
50 meters each, heavy-duty |
|
|
Alligator Clips |
4 |
For connection to ground grid |
|
|
Earth Spikes |
Auxiliary Current/Voltage Spikes |
4 total |
Φ10mm x 400mm, galvanized steel |
|
Sledgehammer |
1 |
For driving spikes |
|
|
Power & Data |
AC Adapter / Charger |
1 |
Input: 100-240VAC, Output: e.g., 12VDC |
|
Power Cord |
1 |
For the charger |
|
|
Case & Docs |
Carrying Case |
1 |
With custom foam |
|
User Manual |
1 |
||
|
Calibration Certificate |
1 |
Maintenance & FAQs
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Technical Specifications
|
1 |
Conditions of use |
-15℃-40℃ |
RH<80% |
|
2 |
Anti-interference principle |
Frequency conversion method |
|
|
3 |
Electric source |
AC 220V±10% |
allowed generator |
|
4 |
Measure output current |
1A-5A Adjustable |
|
|
5 |
Measure output voltage |
0V-400V |
|
|
6 |
Test power frequency
|
45, 50, 55, 60, 65HZ single frequency 45/55, 55/65 47.5/52.5HZ Automatic Dual Frequency |
|
|
7 |
Output rating |
2000W |
|
|
8 |
Distinguishing rate
|
Grounding impedance: 0.0001 |
|
|
Impedance angle:0.0001° |
|||
|
9 |
Precision |
Grounding impedance:±(1%* reading +0.002) |
|
|
Impedance angle:±(1%* reading +0.02°) |
|||
|
10 |
Resistance measurement range |
0.001Ω~5K |
|
|
11 |
Exterior dimensions |
370(L)×295(W)×358(H) |
|
|
12 |
Memory size |
100 groups support U disk data storage |
|
|
13 |
Weight |
Main engine 22 Kg, ground pile 7 Kg |
|
