CT-7500 S2 Digital Circuit Breaker Analyzer
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CT-7500 S2

Digital Circuit Breaker Analyzer
Part Number(s)
9075-UC [CT-7500 S2 with 3 channels]
9076-UC [CT-7500 S2 with 6 channels]
9077-UC [CT-7500 S2 with 12 channels]
Download Links
CT-7500 S2 Datasheet (English)
Customer References
CT-7500 S2 User's Manual (English)

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

CT-7500 S2

Cables

CT-7500 S2

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
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
Specifications are valid at nominal voltage and ambient temperature of +25C (+77F).
Last updated on February 5, 2009