Categories
Large-scale grounding resistance tester

Large-scale grounding resistance tester

Type: ZC-410A
ZC-410A large-scale grounding resistance tester is a special instrument for measuring grounding continuity between grounding resistance and grounding point. The instrument adopts frequency conversion anti-interference technology, does not need large current measurement, and can measure the accurate data of 50Hz in the strong interference environment of the substation. The measurement results are displayed by the liquid crystal, and can be printed out by the micro printer. The instrument can measure both ground resistance and ground resistance at the same time, and can reflect the actual characteristics of the grounding grid more truly.
Contact Supplier
  • Product Features
  • Parameter
  • Guide
  • Scene
  • Related video
  • Packing
Product Features
1. The power frequency equivalence of measurement is good. The test current waveform is sine wave, and the difference between frequency and power frequency is only 0.25Hz at least and 5Hz at most. It can be used to measure at 50Hz or 60Hz.
2. Strong anti-interference ability. This instrument adopts the method of different frequency measurement and the modern software and hardware filtering technology, which makes the instrument, have high anti-interference performance and stable and reliable test data.
3. The measurement accuracy is high. The basic error is only 0.005Ω, which can be used to measure the earth network with small ground impedance.
4. Powerful. It can measure the current pile, voltage pile, grounding grid impedance, grounding resistance, grounding continuity, soil resistivity, etc.
5. Easy to operate. All English menu operation, directly display the measurement results.
6. wiring labor is small, no need for large current wire.
7. Safe and reliable. The instrument has the functions of grounding protection, current limiting and voltage limiting protection, audible and visual alarm, etc. to ensure the safety of test personnel and equipment.
Parameter

Output voltage class

500V, 1000V, 2000V, 2500V

Measuring range

0 ~ 19999mΩ

Relative error

≤± 4% ± 1d

Resolution

0.01M Ω, 0.1M Ω, 1.0m Ω, 10.0m Ω

Voltage load

2500V / 20MΩ

Voltage drop about

About 10%

Short circuit current

> 1.6mA

Applicable scope and power loss of power supply

DC 8x1.5V (AA, R6) battery or rechargeable battery

AC 220V / 50Hz

Consumption: static power≤  160mW; maximum power ≤2.5w

Service condition

Ambient temperature: 0°C ~ + 45°C

relative humidity  ≤ 85% RH

Volume

235mmx200mmx135mm3

Weight

1.5kg

guide
At present, in the power system, the test of the earth resistance of the earth network mainly adopts the method of high current pole. In order to prevent power frequency interference caused by power grid operation and improve the accuracy of measurement results, the insulation preventive test procedure stipulates that the test current of power frequency high current method shall not be less than 30A. As a result, there are many problems, such as heavy test equipment, complex test process, high work intensity and long test time.
ZC-410A large-scale grounding resistance tester adopts a new type of frequency conversion AC power supply, and uses the microcomputer processing control grounding resistance tester and signal processing and other measures, which solves the anti-interference problem in the test process, simplifies the test operation process, improves the accuracy and accuracy of the test results, and greatly reduces the labor intensity and test cost of the test personnel.
ZC-410A large-scale grounding resistance tester is a special instrument for measuring grounding continuity between grounding resistance and grounding point. The instrument adopts frequency conversion anti-interference technology, does not need large current measurement, and can measure 50Hz accurate data in the strong interference environment of the substation. The measurement results are displayed by large screen LCD, and can be printed out by the micro printer. The instrument can measure both ground resistance and ground resistance at the same time, and can reflect the actual characteristics of the grounding grid more truly.
scene
Related video
packing
Contact supplier

Send your message to this supplier

Subject:
Email:
Name:
Phone:
Message:
Code: Can't see clearly? Click to replaceCan't see clearly? Click to replace
 
You May Like
TOP