Product Overview: Vanguard CT-7500 Digital Circuit Breaker Analyzer – Discontinued
Vanguard CT-7500
This product has been discontinued see CT-8000 S3
The Model CT-7500 Series 2 is a stand-alone, microcomputer-driven EHV Circuit-Breaker Analyzer. It’s inexpensive and easy to use. It operates in either of two modes: as a traditional Time-vs-Travel analyzer or as a Quick-Shot (on-line timing).
In the Time-Travel mode, the CT-7500 analyzes breaker performance: contact time, stroke, velocity, over-travel, and wipe. Contact-motion analysis includes: Open, Close, Open-Close, Close-Open, and Open-Close-Open. The timing window is selectable: 1-second, 10-second, or 20-second periods. The 10-second and 20-second windows allow timing of long-duration events (e.g., circuit-switcher contacts).
- On-Line Timing
- Capture First Trip Time
- Full Breaker Tabulated & Graphic Data Printout
- Built-in Thermal Printer
- Initiate Breaker Operation
- Digital Travel Transducer; No Setup or Calibration Required
- Support resistor type transducer
- Detect Main Contact and Insertion Resistor Contact on the Same Input Channel
- Store 100 records and 99 test plans
- USB and RS-232C computer interfaces
- Diagnostic Capabilities
Vanguard CT7500 Technical Specifications
| TYPE | Portable circuit-breaker analyzer |
| PHYSICAL SPECIFICATIONS | 16”W x 11”H x 14”D (40.6 cm x 29.9 cm x 35.6 cm); Weight: less than 25 lbs (11.3 kg) |
| INPUT POWER | 100 – 120 Vac or 200 – 240 Vac (selectable), 50/60Hz |
| DRY-CONTACT INPUTS | 3, 6 or 12 dry-input channels (depending on model). Each channel detects main and insertion-resistor contacts |
| TIMING WINDOWS | 1-second, 10-seconds, or 20-seconds |
| TIMING RESOLUTIONS | ±50 micro-seconds @ 1-second duration, ±500 micro-seconds @ 10-second duration, ±1.0 milli-seconds @ 20-second duration |
| TIMING ACCURACY | 0.05% of reading ±0.05 ms @ 1-second duration |
| DRY-CONTACT CHANNEL PROTECTION | All contact inputs are grounded until test; input channels are protected against static discharge |
| DRY-CONTACT DETECTION RANGE | Closed: less than 20 ohms; Open: greater than 5,000 ohms |
| RESISTOR DETECTION RANGE | 50 – 5,000 ohms |
| CT CURRENT SENSOR | One, non-contact, 0 – 100 Amperes |
| TRIGGER INPUT VOLTAGE | Open/Close: 30 – 300V, DC or peak AC |
| VOLTAGE SENSING INPUT RANGE | V1: analog input; 0 – 255V DC or peak AC; Sensitivity ±1V V2: voltage presence/absence detector input; 30 – 300V DC or peak AC |
| BREAKER OPERATIONS | Initiate Open, Close, Open – Close, Close – Open, Open – Close – Open |
| BREAKER INITIATE CAPACITY | 30A, 250Vac/dc max |
| INITIATE CURRENT READING RANGE | One, non-contact, Hall-effect sensor, 0 – 20 amp range, dc to 5Khz |
| DIGITAL TRAVEL TRANSDUCER INPUTS | 3 digital travel transducer channels; Linear range, 0.0 – 60.0 in (±0.01 in); Rotary range: 0 – 360 degrees (±0.36 degrees) |
| RESISTOR TYPE TRANSDUCER INPUT | 200 Ohms – 10K Ohms |
| CONTACT TRAVEL POINT DIFFERENCE | Measures “slow-close” contact-point distances; results can be printed |
| DISPLAY | Back-lit LCD Screen (20 characters by 4 lines); viewable in bright sunlight and low-light levels |
| PRINTER | Built-in 4.5-inch wide thermal printer can print both graphic contact travel waveforms and tabulated test results |
| INTERNAL TEST RECORD STORAGE | Stores up to 150 test records and 99 test plans |
| COMPUTER INTERFACES | One RS-232C port, One USB port |
| PC SOFTWARE | Windows® XP/Vista-based Breaker-Analysis software is included with purchase price |
| SAFETY | Designed to meet UL 6101A-1 and CAN/CSA C22.2 No 1010.1-92 standards |
| ENVIRONMENT | Operating: -10°C to 50°C (+15°F to +122°F); Storage: -30°C to70°C (-22°F to +158°F) |
| OPTIONS | Transportation case (available for the CT-7500 S2 and the travel transducers) |
| WARRANTY | One year on parts and labor |
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