shower accessories set,bath accessories set,shower accessories ideas,shower accessory Guangdong Kinen Sanitary Ware Industrial Co.,Ltd. , https://www.kinengroup.com
How to operate 5A ground wire grounding resistance meter?
SDY826 (5A) grounding wire grounding resistance meter is based on the country's existing industry standard DL/T911-2004. The grounding wire grounding resistance meter adopts the mainstream power frequency and high current three-pole measurement technology to prevent the power frequency interference generated when the power grid operates. , To improve the accuracy of test results, SDY826 (5A) ground-net grounding resistance instrument uses a new type of different frequency AC power supply, computer processing control and anti-jamming signal processing and other measures to solve the anti-jamming problem during the test, simplifying the test operation The accuracy and accuracy of the process and test results greatly reduce the labor intensity and test costs of the test personnel.
SDY826 (5A) grounding grounding resistance tester is applicable to test grounding resistance in various places such as substation grounding grid (4Ω), power plant, microwave station (10Ω), and lightning rod (10Ω). SDY826(5A) ground network resistance meter output uses 45hz, and 55hz double frequency test, the output current of 5A maximum test current will not cause the grounding device's potential to be too high during the test. The ground network resistance meter also has a pole. Strong anti-interference ability, to meet the measurement without interruption.
SDY826 (5A) ground network grounding resistance tester steps:
A. First, check whether the current line, voltage line and grounding wire used in the test are disconnected (can be measured with a multimeter), whether the rust on the ground pile is clean and whether the depth of burial is appropriate (>0.5 meters). If the connection between the test line and the ground stakes is conductive, if it is not conductive, reconnect it after processing.
B. The length ratio of the current test line to the voltage test line is 1:0.618, and the length of the current test line should be 3 to 5 times the diagonal of the ground network.
C. The current test line and the voltage test line are connected to the grounding earth resistance meter at one end and discharged in parallel according to the specified length. The other end is connected to two ground piles (as shown in Figure 3).
D. Check the test line that has been placed once, connect one end of the multimeter to the current line or voltage line, and if the other end of the grounding network cable shows no resistance, it is an open circuit. Confirm the test and then confirm the test.
E. After checking that the connection is correct, ground the grounding resistance meter and connect the AC 220V/50Hz power supply to the instrument.
F. Press the measurement key to start measurement.
G. SDY826 (5A) ground network resistance meter display test data after the end of the test (SDY826 (5A) ground network ground resistance meter can be repeatedly measured).
H. After turning off the power of the instrument, remove the connection and the test process ends.