Huazheng HZJY-2.5K-N Water Cooling Generator Insulation Tester User Manual

Huazheng HZJY-2.5K-N Water Cooling Generator Insulation Tester User Manual

Water Cooling Generator Insulation resistance tester dedicated to the measurement of water-cooled generator test, but also can be used for laboratory or field testing insulation testing to do. Output current greater than 25mA. The maximum output voltage of 2500V. Includes high-precision micro- current measurement system, digital boost system. Just use a high-voltage lines and a signal line connecting the test product can be measured. Automatic measurement, the results from the large noncrystalline display, and store the results.

the main features of

1. 32-bit micro-controller, Chinese user interface, easy to operate.
2. Automatically calculates the absorption ratio and the polarization index, and automatically nanoseconds, 1 minute, 2 minutes, 10 minutes to facilitate analysis of data per minute.
3. Output current, (2500V, the output is greater than 25mA), short-circuit currents greater Samantha.
4. A fully enclosed high-voltage generator module technology, the protection of the internal resistance, safe and reliable. Anti-interference ability, to meet the EHV substation on-site operation.
5. Automatic discharge test is completed, and real-time monitoring the

the main technical performance

Accuracy: ± 10%
Range: 0.1M～100GΩ
Test   voltage: 2500V
Short circuit current: > 25mA
Measuring time: 1 minute to 10 minutes (with the measurement related)
Power Supply: 180 ~ 270VAC, 50Hz/60Hz ± 1% (utility or generator power)
Working Environment: Temperature -10 ~ 40 ℃, relative humidity 20 to 80%

the operating components function

1. Line Terminal
   “Line” for the high-voltage output, known as the line side, measured by the high voltage to the end line, for example, connected to the motor winding.

2. Department of water terminal
   Received water on the sink generator.

3. Terminal base Connected to the generator frame.

notes and other

Please pay attention to safety, “the line” for the high side! 1G = 1000M

How

Measurement operation

Enter the initial setup screen (Figure I)

Initial setup screen (Figure I)

1. The initial measurement of the icon is selected, the following shows 2500v that measure voltage.
2. Press → key to store the icon to set the clock icon in the icon is selected loop
3. Press the start / stop button for 1 second to start the measurement, display measurement of the screen (Figure II)

Display the measurement screen (Figure II)

Said test voltage 2500v

• 105 M measured in large print that the instantaneous value
• 02’45 “for the time measurement process
• 05-05-24: Measurement Date
• 15 “indicates the value measured 15 seconds
• 01 ‘is the value measured 1 minute
• 10 ‘is the value measured 10 minutes

Absorption ratio DAR DAR = R60s/R15s

PI PI = R10m/R60s polarization ratio

the measurement process by start / stop button, or the end of the measurement, display discharge

screen (Figure III)

Discharge screen (Figure III)

600V transient voltage discharge process. At this time must not touch test and measurement product line! So discharged, the user manual discharge of the test items

After completion of discharge into the measurement results stored in the screen (FigureD)

Store measurement results screen (Figure D)

Right half of the screen as part of the data and measurements, please refer to display the measurement screen (Figure II) shows

[007]: the serial number of that stored measurement data

Press → key to exit 007 can store cycle is selected. Exit is selected in the store when the press start / stop button to return to the initial setup

screen (Figure I) [007] in a selected time, press the → key to move the selected bit, ↑ ↓ key tomodifytheserial number

When the clock icon is selected.

1. The start / stop button, enter the time display and setting screen (Figure E)
   Time display and setting screen (Figure E)
   

2. QUIT is selected out by start / stop button to return to the initial setup screen (FigureI)

3. SET is selected by start / stop button in the date, time, a small arrow appears below↑ ↓ key to change the date at the time.

4. Amend complete, press the start / stop button setting is selected

5. Press the → key allows setting and exit the loop is selected. In the modification when the cycle moves small arrow

When the store icon is selected

1. The start / stop button to store the data into the view screen (Figure VI)
   See store data screen (Figure VI)
   
   

2. The right half of the screen as part of the data and measurements, please refer to display the measurement screen (Figure II) shows

3. [000] to [007] that serial measurements
   (4) Press the ↑ ↓ keys to [000] to [007] is selected on the right shows the number of data
   (5) Press the button next page →
   (5) Press the start / stop button to return to the initial setup screen (Figure I)

4. When the Settings icon is selected

5. The start / stop button, enter the setup screen (Figure VII)
   Settings screen (Figure VII)
   

6. Press the → key to make the TIME ALARM etc loop is selected. (3) Press the ↑ ↓ keys to change the appropriate settings

7. Press the start / stop button to return to the initial setup screen (Figure I)

About the principle instrument

Some features of each

LCD Keypad: Responsible for the keyboard, display.
NC regulator: PWM circuit producing high-efficiency standards for 0-5V output.
DC-DC 0-2.5Kv: with step-up transformer, high conversion, high voltage DC output 2.5kv. Withshort circuit protection

Divider circuit: 2.5KV high pressure, converted to 5V, to facilitate AD collection.
Measuring circuit: for data acquisition, current transformation.
Controller: will all of these modules to complete the measurement.

Resistance or resistivity of the main factors

a. Temperature and humidity

General resistance of the material with the increase of temperature and humidity decreases. In contrast, the surface resistance (rate) is sensitive to environmental humidity, and body resistance(rate)is more sensitive to temperature. Humidity increases, the surface leakage increases, the body will increase the conduction current. Temperature, the movement of the carrier rate is accelerateddielectricabsorption current and conduction current will increase accordingly, according to the information reported, the general media in the 70C 20C when the resistance is only 10% of the time. Therefore, the measurement of resistance of the material, you must specify the sample to reach equilibriumwiththeenvironment temperature and humidity.

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