1 type ZHZ8ED-33 series power frequency withstand voltage tester Summary
This series of withstand voltage tester is suitable for all kinds of motor, electrical appliances, instruments and appliances, safety and power system voltage and leakage current test. The instrument has the advantages of convenient operation, safe and reliable, good performance, convenient maintenance. Is in line with the GB755 "The basic technical requirements of various types of motor and motor standards and regulations" GB4943 , GB4793 Test and other relevant provisions of the national standard requirements of test equipment required.
2 type ZHZ8ED-33 series power frequency withstand voltage tester Specification and technical characteristics
Two point one Output capacity, voltage, leakage current, current and preset alarm error.
Output capacity : 3kVA
Voltage : 5KV - 50kV Accuracy: +; 5%+3 A word
leakage current : 5mA - 50mA Accuracy: + 5%+3 A word
The preset alarm current: 5mA - 50mA Accuracy: + 5%+3 A word
Two point two The characteristics of products
A Display mode for digital display.
B Can directly display the leakage of analyte in the test flow value.
C Can be set 5mA - 50mA Any alarm current value
D Under the condition of alarm, the instrument can maintain the voltage value
E Output waveform 50Hz Sine wave.
F Can be set 5KV - 50kV Any voltage value
Two point three Size and weight.
Size : 550 * Five hundred and fifty * One thousand and two hundred (including roller)
weight : 150Kg
Two point four The conditions of use
temperature Zero C ~ Forty C
The relative humidity is not more than Eighty %
No strong electromagnetic interference source, without a lot of dust and corrosive gas, good ventilation.
Two point five AC power supply 220V Tolerance. Ten %, 50Hz .
3 type ZHZ8ED-33 series power frequency withstand voltage tester The structure and working principle
Three point one Working principle
Withstanding voltage tester is composed of high voltage boost circuit (test voltage to adjust the output energy required), leakage current detection circuit (set alarm current) and value indicating instrument (direct readout output voltage and leakage current value < The alarm or breakdown current value ">> ). During the test, the measured object at the time stipulated in the provisions of the testing voltage, automatically cut off the output voltage instrument; once the breakdown, i.e. the leakage current exceeds the set alarm current value will alarm.
Three point two The instrument function key layout:
One (high voltage display KV ) Two The leakage current (display MA )
Three (show time S ) Four "Qualified" instructions
Five Alarm indicator Six "Set" button
Seven The "start" button Eight The "reset" button
Nine "Power" indicator Ten The "manual" indicator
Eleven High pressure indicator Twelve Zero indicator
Thirteen Alarm indicator Fourteen Power switch
Fifteen "Automatic / Manual switch button Sixteen "Boost" button
Seventeen "Buck" button Eighteen "Emergency stop" button
Three point three High voltage transformer and the console terminal
One input Two input
Three Instrument transformer Four Instrument transformer
Five The tail voltage step-up transformer Six Transformer shell
Seven input Eight input
Nine Instrument transformer Ten Instrument transformer
Eleven The tail voltage step-up transformer Twelve Transformer shell
Thirteen High end
4 type ZHZ8ED-33 series power frequency withstand voltage tester Safety precautions :
Four point one Before using please read the instructions and follow the instructions step in operation.
Four point two Do not use non original accessories, in order to avoid danger.
Four point three The instrument and the measured object must be well grounded, not allowed to tie in the tap water pipe.
Four point four This instrument has high enough for police casualties. In order to prevent electric shock accidents, before using this equipment, please wear insulating rubber gloves, foot pad insulation rubber pad, and related operations.
Four point five When the instrument is in the test mode, please do not touch the test line, the analyte and the output terminal.
Four point six Don't make the short circuit test line of the instrument and the AC power line, lest the whole instrument charged.
Four point seven When testing a sample, to replace another object to be measured, should make the tester in the testing indicator lights and high lights and lights out back to zero, then the replacement.
Four point eight When the power switch is switched off, if you want to start again, need to wait a few seconds later, the "zero" indicator light, and then press the start button. Don't make the power switch for opening and closing action, in order to avoid mistakes caused by damage to the instrument.
Four point nine The instrument no-load test, leakage current will have value. Because of the low end instrument current sampling circuit in high voltage circuit (near ground loop). When the voltage to high voltage, the leakage current of high voltage transformer itself into the current detection circuit through the core, resulting in idle state, there is little indication of leakage current. This is a normal phenomenon, does not affect the test accuracy.
Four point one zero Avoid using in the following circumstances:
A. Avoid placing the sun. The rain or damp place.
B. Please stay away from fire and heat, to prevent the high temperature of the machine.
C. Handling or maintenance, should be shut down and will remove the power line.
5 type ZHZ8ED-33 series power frequency withstand voltage tester Use and operation
Five point one Preparing for use
5.1.1 The instrument and the step-up transformer wiring
Open the instrument back door, One and Two "Input" respectively. Seven and Eight "Input", Three and Four "Step-up transformer instrument" respectively Nine and Ten "The transformer instrument", Five The step-up transformer and high voltage end " Eleven The step-up transformer high voltage is connected with the tail ", Six The "transformer shell" and Twelve The "transformer shell".
5.1.2 Dead work
The power supply is switched on, close the drawer on the right side of the air switch, the power switch is in the "on" position. The power indicator light, zero indicator lights, the test voltage and leakage current window display Zero The last time, window display set time value, the instrument is in the initial state. If the boot, "zero" indicator light does not shine, should press the "emergency stop" button, the instrument regulator automatic return to zero.
Five point two Set operation
5.2.1 Set test time
First click on the "reset" button, then click "Settings" button, the test voltage display window display" T-- " , Time display window to display a set time value, the left (decrease) or right (increase) rotation "set" button, to get the test time required, press "set" button again, save the test time, at the same time to enter the current alarm value setting.
5.2.2 The current alarm value setting
When the test time is saved at the same time, the test voltage display window display" A-- " , Leakage current alarm window displays the current setting a value through the left or right (decrease) (increase) rotation "set" button, to get the current alarm required, press the "set" button again, save alarm current value, at the same time to enter the boost voltage value setting.
5.2.3 The boost voltage setting value
When the alarm current value is stored at the same time, the test voltage display window display" U-- " , The leakage current window shows a boost voltage setting value, the left (decrease) or right (increase) rotation "set" button, to get the boost voltage required, press the "set" button again, that holds the boost voltage value, at the same time to measure the initial state.
Five point three Operation steps
5.3.1 With the measured transformer wiring
Twelve The "transformer shell" and the measured shell is connected, Thirteen The "high end" is connected with the high pressure side of the measured object.
5.3.2 Automatic pressure measurement
Press the "start" button, the "test" indicator light, the test voltage rises slowly, the voltage value is the current value of the test voltage. When the voltage rises to a preset value, start the countdown. The leakage current value as measured on the current leakage current value.
( One ) if the leakage measured current value is less than the set alarm current value, namely the measured qualified. Instrument in the test time, automatically cut off the high voltage buck back to zero, finally, "qualified" indicator light.
( Two ) if the analyte is breakdown, or leakage current exceeds the set alarm value of the current, "alarm" lights, sound and light alarm alarm sound and flashing, automatically cut off the high voltage apparatus, maintain voltage value, and then dropping back to zero. The "zero" indicator light, automatically eliminate the alarm.
5.3.3 Manual boost measurement
Please press the "Auto / Manual "button, the instrument is in manual mode. Then press the "start" button, press the "boost" buttons on the voltage will rise slowly, until the rise to the required voltage value, the voltage rise release button. For the buck, press the "voltage drop" button, slow down voltage. The rest. 5.3.2 Syria.
5.3.4 If in the process of testing, safety problems, please press the emergency stop button, the end of the test.
Six Complete
A voltage resistance tester
A test line
Use a manual
Product certificate
Seven Other
Seven point one The instrument should keep the temperature in the room Zero C ~ Forty C, relative humidity of not more than Eighty %, and in the air does not contain harmful substances to cause corrosion.
Seven point two Since the date of purchase instrument users Twelve Within a month, when users use fully comply with the rules in the specification, and the user does not attempt to change the instrument internal structure, it is found that the instrument can not work normally, the factory responsible for free to replace or repair.
Seven point three Factory has the right to make changes without notice of the instrument.
L EFUP
Poisonous and harmful substances or elements contained in the instrument is not used in the normal conditions, leakage or mutation, users use the instrument will not cause serious pollution to the environment or causing serious damage to the person and property of the period Ten Year. The poisonous and harmful substances or elements of the name and content identification.
A body of XXX, XXX
Shell plating XXX X Eighty
LCD screen X Eighty X Eighty
Circuit board X XXX, eighty
Contactor X XXX, eighty
Transformer ( Pressure regulator X) XXX, eighty
switch X XXX, eighty
Ten: the concentration of the hazardous substance in all homogeneous materials in the parts are in SJ/T11363-2006 The standard limits for the following.
X Said: this hazardous substance contained in at least one of the homogeneous materials. SJ/T11363-2006 Limit standard requirements.