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Photos are for informational purposes only. View product specification
please use latin characters
Manufacturer: DACPOL SERVICE
Measuring equipment for voltage measurement of medium voltage surge arresters
Measuring equipment for voltage measurement of medium voltage surge arresters
Machine description
The machine is designed to measure voltage classification of medium voltage surge arresters with rated voltage range from 5kV to 51kV. The tests are performed according to the requirements of PN-EN 60099-4 standard as the final tests of the production process on all units of arresters.
The arresters are tested in the HV compartment of the machine, inaccessible to operators, and their replacement is carried out by a turntable equipped with arresters holders controlled by pneumatic cylinders. The spacing between the holders is set automatically by actuators (electrically controlled actuators). During testing of one arrester the operator exchanges the tested arrester for the next one.
The HV test circuit is galvanically isolated from the mechanical structure of the machine. Test voltage and arrester current are measured by measuring cards placed at high potential and digitally transmitted via bidirectional fiber optic links to the panel computer. The information is transmitted between the sub-assemblies using the Ethernet standard. The machine is equipped with its own, network-independent, sinusoidal voltage test source.
The user operates the machine using a touch screen panel computer. The computer screen displays text messages making the operator's work easier, obtained test results and current and voltage waveforms in the form of graphs, as well as diagnostic messages including the visual location of a faulty component. The operation of the machine components is controlled by a PLC.
Technical data
Measuring machine parameters | |
---|---|
Machine performance | 180 pcs/h |
Handling | 1 person |
Power supply |
230V; 50Hz |
Rated power consumption | Approx. 4 kW |
Operator-machine communication |
Panel computer with touch screen |
Form of communication | Text messages, digital measurement results, graphs of recorded arrester current and test voltage waveforms, visual fault location, control buttons |
Types of machine software | Testing of limiters, service, archive, factory settings |
Service software | Actuator and actuator test, communication test, limit switch test (step operation), machine test |
Machine control | PLC controller |
Drives | - pneumatic actuators (4 pcs.) - actuators (3 pcs.) |
Communication between machine components | ETHERNET |
Test circuit | Isolated from the machine's mechanical structure |
Power supply of metering systems on the HV side | Auxiliary transformer 230 V/230 V Utest = 65 kV |
Test voltage adjustment range | 0÷60000 Vrms |
Test voltage shape | Sine |
Test voltage frequency | 50 Hz |
Measurement range of the active current peak value | 0÷10 mA |
Accuracy of active current measurement | ±1% |
Rated voltage range of tested arresters | 5000 V÷45000 V |
Test voltage source parameters | |
Power supply |
230 V; 50 Hz |
Main power | Ok. 3 kW |
HV transformer power |
2,5 kVA |
Insulation test voltage | 65 kV; 50 Hz; 1 min |
Voltage transformer ratio | 170 V/60000 V |
Current transformer ratio | 14,7 A/0,04 A |
Test voltage shape | sine |
Harmonic content | <4% |
Setting the test voltage value | ETHERNET |
Adjusting the voltage supply to the primary winding | Continuous amplitude adjustment 0÷170 V |
Measurement card parameters | |
Power supply |
230 V; 50 Hz |
Number of measurement ranges | 4 pcs. |
Measuring ranges of the voltage card | 0÷17 kVrms; 0÷34 kVrms; 0÷68 kVrms; 0÷136 kVrms; |
Measuring range of the current card | 0÷10 mA |
Sampling rate | 10 kHz |
Resolution | 12 bits |
Accuracy of voltage measurement | ±0,2% |
Accuracy of current measurement | ± 1% |
Current and voltage measurement methods | |
Set value of the test voltage amplitude | The active component of the limiter current is read for this value. |
Set value of active component of limiter current | The test voltage amplitude is read for this value. |
Test voltage measurement system | |
Voltage divider | Capacitive 60000 V/10 V |
Measurement card | Parameters as above |
Card power supply | Transformer 230 V/230 V; 50Hz; Uisol=65 kV; 1 min |
Current measurement system | |
Measuring resistor | 744 Ω |
Measurement card | Parameters as above |
Signal transmission between cards and computer | |
Fiber optic connectors | Two-way; 2 sets |
Fiber optic converter | SE-37; 4 pcs |
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Measuring equipment for voltage measurement of medium voltage surge arresters
Machine description
The machine is designed to measure voltage classification of medium voltage surge arresters with rated voltage range from 5kV to 51kV. The tests are performed according to the requirements of PN-EN 60099-4 standard as the final tests of the production process on all units of arresters.
The arresters are tested in the HV compartment of the machine, inaccessible to operators, and their replacement is carried out by a turntable equipped with arresters holders controlled by pneumatic cylinders. The spacing between the holders is set automatically by actuators (electrically controlled actuators). During testing of one arrester the operator exchanges the tested arrester for the next one.
The HV test circuit is galvanically isolated from the mechanical structure of the machine. Test voltage and arrester current are measured by measuring cards placed at high potential and digitally transmitted via bidirectional fiber optic links to the panel computer. The information is transmitted between the sub-assemblies using the Ethernet standard. The machine is equipped with its own, network-independent, sinusoidal voltage test source.
The user operates the machine using a touch screen panel computer. The computer screen displays text messages making the operator's work easier, obtained test results and current and voltage waveforms in the form of graphs, as well as diagnostic messages including the visual location of a faulty component. The operation of the machine components is controlled by a PLC.
Technical data
Measuring machine parameters | |
---|---|
Machine performance | 180 pcs/h |
Handling | 1 person |
Power supply |
230V; 50Hz |
Rated power consumption | Approx. 4 kW |
Operator-machine communication |
Panel computer with touch screen |
Form of communication | Text messages, digital measurement results, graphs of recorded arrester current and test voltage waveforms, visual fault location, control buttons |
Types of machine software | Testing of limiters, service, archive, factory settings |
Service software | Actuator and actuator test, communication test, limit switch test (step operation), machine test |
Machine control | PLC controller |
Drives | - pneumatic actuators (4 pcs.) - actuators (3 pcs.) |
Communication between machine components | ETHERNET |
Test circuit | Isolated from the machine's mechanical structure |
Power supply of metering systems on the HV side | Auxiliary transformer 230 V/230 V Utest = 65 kV |
Test voltage adjustment range | 0÷60000 Vrms |
Test voltage shape | Sine |
Test voltage frequency | 50 Hz |
Measurement range of the active current peak value | 0÷10 mA |
Accuracy of active current measurement | ±1% |
Rated voltage range of tested arresters | 5000 V÷45000 V |
Test voltage source parameters | |
Power supply |
230 V; 50 Hz |
Main power | Ok. 3 kW |
HV transformer power |
2,5 kVA |
Insulation test voltage | 65 kV; 50 Hz; 1 min |
Voltage transformer ratio | 170 V/60000 V |
Current transformer ratio | 14,7 A/0,04 A |
Test voltage shape | sine |
Harmonic content | <4% |
Setting the test voltage value | ETHERNET |
Adjusting the voltage supply to the primary winding | Continuous amplitude adjustment 0÷170 V |
Measurement card parameters | |
Power supply |
230 V; 50 Hz |
Number of measurement ranges | 4 pcs. |
Measuring ranges of the voltage card | 0÷17 kVrms; 0÷34 kVrms; 0÷68 kVrms; 0÷136 kVrms; |
Measuring range of the current card | 0÷10 mA |
Sampling rate | 10 kHz |
Resolution | 12 bits |
Accuracy of voltage measurement | ±0,2% |
Accuracy of current measurement | ± 1% |
Current and voltage measurement methods | |
Set value of the test voltage amplitude | The active component of the limiter current is read for this value. |
Set value of active component of limiter current | The test voltage amplitude is read for this value. |
Test voltage measurement system | |
Voltage divider | Capacitive 60000 V/10 V |
Measurement card | Parameters as above |
Card power supply | Transformer 230 V/230 V; 50Hz; Uisol=65 kV; 1 min |
Current measurement system | |
Measuring resistor | 744 Ω |
Measurement card | Parameters as above |
Signal transmission between cards and computer | |
Fiber optic connectors | Two-way; 2 sets |
Fiber optic converter | SE-37; 4 pcs |