SURGE GENERATORS : SG7505
PRINCIPLES OF OPERATION
5kV 750 Joule Surge Generator
The SG7505 surge generator generates voltages between 3 or 5 KV and is typically used in the location of faults in low voltage networks such as street lighting or smaller consumers.
The maximum storage energy of the capacitor is 500 J at 3KV and 750 J at 5KV. All surge generators generate high voltages from the mains supply voltage, which is rectified and used to charge capacitors, which are in turn discharged into a faulty cable at adjustable intervals.
The unit has an internal automatic dump contactor which discharges both the unit and the cable under test. This is activated when the unit is turned off or when a power failure occurs.
It can be operated in the single shot or continuous pulsing method if correct selection is made.
The unit can also be used to perform insulation resistance tests up to the selected output levels.
Ask an Adret consultant if you are not sure whether a 5kV surge generator will meet your needs. Call us on +27 11 907 4475 or click here to request a quote.
SPECIFICATION
Supply Voltage : 220 – 240 VAC
Supply Current : 10A
Output Voltage : 3 or 5kV
Surge Energy : 500 Joules at 3kV & 750 Joules at 5kV
Weight : 40kg
Dimensions : 540x315x330mm excluding lid
Impulse Rate : 6 or 10 PPM
Enclosure : Aluminium, Electrostatically powder coated
Voltage Level Adjustment : Switched between 3 or 5kV
Meters : 1 only Voltage Indication
Proof Testing : Yes
PCA Interface : Built-in
ACCESSORIES
Lid : Aluminium with canvas bag for test cables
Test Cables : 5m HT lead with high current clamps
Earth Lead : 5m yellow/green
Mains Lead : 2m 3-core