Тестер Qrr за измерване на преходен заряд в силови тиристори и диоди
  • Тестер Qrr за измерване на преходен заряд в силови тиристори и диоди

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Производител: DACPOL SERVICE

Тестер Qrr за измерване на преходен заряд в силови тиристори и диоди

Qrr tester for measuring transient charge in thyristors and power diodes


Device description

An independent crimping press set up on the right side works with the tester. The left side press is attached to the ACNL tester. The product to be tested is placed in one or the other press. The tester is designed to work autonomously by entering measurement conditions manually and to cooperate with an external computer which provides data for setting tester's parameters for measurement.



Technical data

Power supply
Supply voltage
3x208 V; 50/60 Hz
Current consumption from phases L1 and L2
50 A/5 s
Current consumption from phase L3
5 A
Momentary power consumption
11 kVA (4 s)
Test current parameters
Current shape
trapeze
Current rising
approx. 5-14 A/µs
Current ridge
400-5000 A
Duration
500-2000 µs
Current drop rate (coil voltage and tapping)
2,5-50 A/µs
Linearity di/dt
better than 10%
Maximum value of the measured reverse current Ir
1000 A
Maximum backward current measurement time value
100 us
Gate current of thyristor under test
set 0,2-2 A
Pulse duration
set 40-400 µs
Measurement times
First product (with run setup)
15 s
Next in the same series
8 s


Screenshot

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Qrr tester for measuring transient charge in thyristors and power diodes


Device description

An independent crimping press set up on the right side works with the tester. The left side press is attached to the ACNL tester. The product to be tested is placed in one or the other press. The tester is designed to work autonomously by entering measurement conditions manually and to cooperate with an external computer which provides data for setting tester's parameters for measurement.



Technical data

Power supply
Supply voltage
3x208 V; 50/60 Hz
Current consumption from phases L1 and L2
50 A/5 s
Current consumption from phase L3
5 A
Momentary power consumption
11 kVA (4 s)
Test current parameters
Current shape
trapeze
Current rising
approx. 5-14 A/µs
Current ridge
400-5000 A
Duration
500-2000 µs
Current drop rate (coil voltage and tapping)
2,5-50 A/µs
Linearity di/dt
better than 10%
Maximum value of the measured reverse current Ir
1000 A
Maximum backward current measurement time value
100 us
Gate current of thyristor under test
set 0,2-2 A
Pulse duration
set 40-400 µs
Measurement times
First product (with run setup)
15 s
Next in the same series
8 s


Screenshot

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