Catalog No. 1044D
TESCO Digital Current Transformer Burden Test Set

The Catalog 1044D Current Transformer Burden Test Set is a simple and inexpensive means whereby a current transformer installation may be quickly checked for many sources of trouble. The tests are made without interrupting the Customer's service and while the load is on.

The instrument features a digital LED meter for displaying the CT secondary current.

Extensive precautions have been taken in the design so that there will be a continuous and closed path in the watthour meter current circuit at all times, and the secondary of the current transformer will not be opened by accident.

Applications

The Current Transformer Burden Test Set is used for detecting the following sources of trouble in any C.T. installation.

  1. Short circuited primary turns on C.T.
  2. Short circuited secondary turns on C.T.
  3. High resistance joints or connections in the C.T. secondary circuit.
  4. Short circuited secondary wiring.
  5. Customer tampering.
  6. Grounding of normal ungrounded wire.
  7. Grounding of secondary winding when mounted on grounded structure.
Features
  • Switches for ANSI values of 0.1, 0.2, 0.5, 1.0, 2.0, 4.0 & 8.0 ohms. Non-standard burden values can be derived by using a combination of different switches to a maximum of 15.8 ohms.
  • Convenient push button for adding intermittent burden.
    Thermally protected to prevent element burnout.
  • Easy-to-read current values.
  • Automatic system continuity check enhances safety by ensuring the instruments current path is continuous.
  • Display current before burden is applied, current after burden is applied and percent change.
Specifications

Current Range: 20 amps maximum
Burden Values: .1 to 15.8 ohms
Voltage: 480 volts rms maximum
Case: Durable Polystyrol material
Dimensions: 7 1/2" x 4 1/4" x 3 3/4" high
Weight: 5 pounds
Powered by: 6 AA batteries required

Optional

Catalog No. 1046 Optional Carrying Case

Overall Size: 8 1/2" x 4" x 7 3/8"
Instrument Compartment: 5 3/8" x 3 5/8" x 7"
Lead Compartment: 2 1/4" x 3 1/2" x 7"
Weight: 1 pound

Equipment documentation

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Digital Current Transformer
Burden Test Set
Catalog No. 1044D
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