Model 1660 Surge Tester
Surge testing is undoubtedly the most comprehensive single test available for wound products. Its primary function is verification of insulation integrity. Designed for rapid Go/No-Go testing, the 1660 detects latent and existing insulation failures such as turn-to-turn shorts, layer-to-layer shorts, coil-to-coil shorts, winding-to-winding shorts, and phase-to-phase shorts are best detected by surge testing. Open circuit and ground detection are secondary benefits of surge testing. The verification of insulation integrity of simple coils, chokes, solenoids, transformers, stators, field coils and other wound products make the surge test a 'must' for the quality conscious manufacturer.
Testing Features
- Digital display of voltage and deviation with digital limit selection.
- Unique go, no-go operation with automatic reject.
- Tests solenoids, chokes, transformers, stators and other wound products.
- Detects shorted turns as well as opens and grounds.
- Masterless operation, does not depend on operation judgment.
- SCR high voltage switching and solid state control circuitry.
| Input Voltage | 115 volts
+/- 15%, 47 – 63Hz | | Output Voltage | 400 – 5000 volts DC Peak | | Discharge Capacitance | 0.02 MFD | | Pulse Energy | Variable to 0.25 watts-seconds | | Minimum Load Impedance | 20 Ohms/KV recommended | | Dwell Timer | Variable up to 5 seconds | | Repetition Rate | Line Frequency | | Terminations | 3 High Voltage (Alden) Sockets | | Dimensions | (W*H*D) 19 * 5.25 * 17.5 in. | | Weight | Weight: 39 lbs. | | Shipping Information | (W*H*D) 26 * 14 * 23 in.
Weight: 46 lbs. |
| | The series 1660 Surge tester is Masterless as it requires no active-master for analysis. Instead, reference settings are determined based upon initial setup with a 'good' workpiece and then simply repeated when needed. All test results are go/no-go and do not require operator interpretation or judgment. | | | The Series 1660 Surge tester operates as a capacitive-discharge system. A capacitor is charged with high voltage on the first half of a sine wave and then discharged or dumped into the workpiece, through an SCR, on the second half of the sine wave. This sequence continues throughout the dwell time thus stressing the insulation of the workpiece with high voltage DC pulses.
Because the workpiece is characteristically inductive it will automatically respond to the Surge tester's pulsed excitation by generating a counter-electromotive force or flyback action, which produces a ring wave of diminishing proportions. The criteria for workpiece acceptance is based upon the integrated value of this self generated ring-wave.
During the surge test, the workpiece can be subjected to high instantaneous voltages and currents. However, the average power dissipated by the workpiece is relatively low thus avoiding damage to good parts. |
|
