The Megger DELTA 4000 Series is an advanced, fully automatic 12 kV insulation power factor/dissipation factor test set, designed for evaluating the condition of electrical insulation in high voltage apparatus like transformers, bushings, circuit breakers, cables, and rotating machinery. This series, which includes the DELTA 4110 and DELTA 4310A configurations, not only performs insulation power factor tests but also measures excitation current of transformer windings and conducts automatic tip-up tests and HV turns-ratio testing. The DELTA 4000 Series delivers accurate, stable readings with high precision, even in environments with high interference.
Features
- Easy to use with automatic and manual operation
- Accurate and repeatable measurement results with high noise suppression for the most extreme conditions
- Lightweight, rugged two-piece design, with unit weights of 14 kg and 22 kg
- New built-in intelligent temperature correction eliminates the need for temperature correction tables (patent pending)
- New automatic voltage dependence detection (patent pending)
Specifications
| Input Power |
90 - 264 V
45 - 66 Hz
16 A max |
| Output Voltage |
0 to 12 kV, continuously adjustable |
| Test Frequency Range |
45-70 Hz (12 kV)
0.0001 Hz maximum resolution |
| Output Power |
3.6 kVA |
| Output Current |
300 mA (4 minutes)
200 mA (30 minutes)
100 mA (continuous)
The power supply capacity can be expanded to 4 A at 12 kV using the optional Resonating Inductor, (Cat. No. 670600-1).
|
| Measuring Ranges |
| Voltage |
25 V to 12 kV, 1 V resolution |
| Current |
0 to 5 Amps, 0.1 μA maximum resolution. The measurement can be corrected to either 2.5 kV or 10 kV equivalents. |
| Capacitance |
0 to 100 μF, 0.01 pF maximum resolution |
| Inductance |
6 H to 10 MH, 0.1 mH maximum resolution |
| Power factor |
0-100% (0-1), 0.001% maximum resolution |
| Dissipation factor |
0-100 (0-10,000%), 0.001% maximum resolution |
| Watt Loss |
0 to 2 kW, actual power, 0 to 100 kW when corrected to 10 kV equivalent. 0.1 mW maximum resolution. The measurement can be corrected to either 2.5 kV or 10 kV equivalents.
|
| Noise Immunity |
| Electromagnetic |
15mA induced noise into any test lead with no loss of measurement accuracy at maximum interference to specimen current of 20:1
|
| Electromagnetic |
500 μT, at 50/60 Hz in any direction |
| Temperature |
Operating: -20 to +55° C (-4 to +131° F)
Storage: -50 to +70° C (-58 to +158° F) |
| Relative humidity |
Operating: 0 to 95% non-condensing
Storage: 0 to 95% non-condensing |
Applications
- Power transformers
- Distribution transformers
- Instrument transformers
- Rotating machines
- Oil insulation
- Bushings
- Cables
- Capacitors
- Circuit breakers
- Surge arrestors
Test Capabilities:
- Power factor
- Dissipation factor
- Excitation current
- Automatic tip-up
- Watts loss
- Inductance
- Capacitance
- Voltage
- Current
- Turns ratio