Test Equipment Capabilities

60 Hz applied alternating _______ series resonant test supply:

• 2 reactor modules in ______ rated 800 kV 5 _, capacitance range 0 to 14.5 nF;
• 2 reactor modules in ________ rated 400 kV 10 _, capacitance range 0.2 to 66.3 nF;
• Test system partial discharge &__;2 pC measured with Omicron _______ MPD600;
• Used with 50 pF __________ gas standard capacitor rated 600 kV;
• Operation available at frequencies _____ than 60 Hz.

Applied direct voltage ± 1,200 kV 20 mA test ______:

• Polarity reversal <2 minutes ___ 2.8 nF at 1,200 __;
• Polarity reversal <2 minutes ___ 11.3 nF at 625 __;
• Suitable for use in _______ discharge measurements on transformers ___ bushings rated 500 kVdc.

360 kJ impulse generator:

• 2,400 kV lightning full ____ impulse;
• 2,400 kV triggered chopping ___;
• 1,300 kV switching impulse;
• 12 stages (200 kV, 30 kJ per stage);
• Resistors: 168 wave front / 48 wave tail;
  Glaninger circuit;
• 2,400 kV compensated voltage _______;
• Multi-channel precision digital impulse _________ system (12 bit).

Power transformer test system:

• 690 V 4 MVA _______ source converter ≤ 5% ___ (40 Hz – 200 __);
• 4 MVA step-up transformer ____ 52 off-voltage taps 1.55 __ to 170 kV (boost __ 190 kV short time);
• 120 MVAr capacitor bank ___ use during load loss ___ temperature rise tests, max. 42 kV 3-ph or 48 __ 1-ph;
• 2-stage 200 kV 2,000 _ current transformers and 200 __ compressed gas capacitors used __ power measurement;
• Accuracy of power measurement __ better than 0.13% at 0.05 power factor;
• Filters to facilitate partial _________ measurements <10 pC during _______ tests;
• Oil processing and testing ____________.

Accelerated aging facilities for ______ bars and coils:

• 50 V 60 Hz 6,000 A supply for thermal _______;
• 50 kV 60 Hz 28 kVA supply for voltage _________ with inductive compensation;
• Unity power-factor voltage regulator.