Model 936A Reference Current Transformer

Model 936A Reference Current Transformer

Provides laboratory grade accuracy in a small, portable, ruggedized case, making it ideal for calibrating other current transformers in the field.

Model 936A User Manual
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Model 936A Data Sheet
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The Arbiter Systems®, Inc. Model 936A Reference Current Transformer provides laboratory grade accuracy in a small, portable, ruggedized case, making it ideal for field use. Multiple ratios of 1200:5, 1000:5, 800:5, 600:5 are selectable via a front panel switch. The guaranteed accuracy over the full input range and operating conditions is 0.02 % ratio and 0.01 ° phase (traceable to NIST), ideal for calibrating other current transformers.

The Model 936A uses an active transformer to achieve the high accuracy needed for a primary reference. This design incorporates a dual core toroid with an amplifier aided second stage. The active circuitry reduces the sense transformer core flux to zero and produces an accurate output current independent of burden. The Model 936A was designed primarily for use with the Model 935A Current Source and the Model 931A Power System Analyzer to calibrate current transformers used with the Model 1133A Power Sentinel. The Model 936A's multiple ratio selections allow other current transformers to be tested and calibrated across their entire operating range.

  • Portable and ruggedized for field work
  • Supports multiple ratios of 1200:5, 1000:5, 80:5, and 600:5
  • Guaranteed accurate - within 0.02 % ratio and 0.01 ° phase, traceable to NIST
  • Works with Model 935A and 931A

Input/Output

Input

Input Range

1 Arms to 1200 Arms

Current Ratios

1200:5, 1000:5, 800:5, 600:5

Output

Current

5 Arms maximum

Voltage

8.5 Vrms maximum

General

Physical

Size

205 mm x 305 mm x 225 mm (8 in x 12 in x 8.75 in)
483 mm x 483 mm x 483 mm (16 in x 16 in x 16 in), shipping

Weight

5.8 kg (12.8 lbs) maximum

Current Transformer

55 mm (2.125 in) ID Nominal, 3 m (10 ft) cable length

Environmental

Temperature

Operating: 0 °C to + 40 °C
Nonoperating: - 40 °C to + 85 °C

Humidity

Noncondensing

Power Requirements

External Power

Range

85 Vac to 264 Vac, 47 Hz to 440 Hz, 15 VA maximum or 110 Vdc to 250 Vdc, 15 W maximum

Safety

Designed to meet UL, CSA, VDE Standard

Standard

Inlet

IEC-320 with fuse and mating cordset. Specify P01 - P10.

There are no additional Options available for this product.
Included
AS0079600 Reference Current Transformer (936A)
AS0080300 Operation Manual (936A)
P01R-P10R Country specific power cord with right angle female end
No software downloads available for this product
 
No additional software information is available for this product
No firmware Downloads are available for this product
 
No additional firmware information is available for this product
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