CAT + SAT: One Connection for Complete Circuit BreakerTEST & MEASUREMENT · APPLICATION GUIDE
Short answer: CAT + SAT: One Connection should be selected by matching the complete test workflow to the application, not by comparing one headline specification. Confirm the test object, measurement range, accessories, environment, reporting needs, and local support before committing to a configuration.
- Start with the measurement objective and the decision the result must support.
- Evaluate the instrument, connections, accessories, software, and reporting as one system.
- RCC Electronics can help Canadian teams confirm configuration, availability, service, and brief rental needs.
Interest in CAT + SAT: One Connection normally comes from a specific measurement problem: a test takes too long, a result is difficult to repeat, an operator needs safer access, or an existing setup no longer provides enough confidence. The model name alone does not answer whether the complete system will work in the intended environment.
This article combines the existing product overview with a structured evaluation method. It covers application fit, accessories, workflow, result review, Canadian support, and questions to ask before purchasing. Confirm the exact configuration and current specifications with the manufacturer documentation and RCC Electronics before relying on any individual capability.
Is this instrument a practical fit?
A useful evaluation begins with five questions. Write the answers before requesting a quotation or demonstration. This prevents an attractive specification from masking a mismatch in connections, operating conditions, test time, or documentation.
| Decision point |
What to confirm |
Why it matters |
| Test objective |
The fault, parameter, or pass/fail decision |
Defines the required method and evidence |
| Operating range |
Expected values, transients, uncertainty, and margins |
Avoids an underspecified or unnecessarily complex setup |
| Connections |
Sensors, leads, fixtures, adapters, and physical access |
The accessory chain can determine safety and repeatability |
| Workflow |
Setup time, operator steps, data storage, and export |
Throughput depends on the full sequence, not one reading |
| Support |
Training, calibration, service, lead time, and spares |
Protects availability over the instrument life |
Technical overview and application context
Circuit-breaker test workflow | RCC Electronics
CAT + SAT: One Connection for Complete Circuit Breaker Functional Testing
Configured test connections should support more useful measurements, not more rewiring. DV Power’s CAT + SAT system combines timing, resistance and auxiliary-circuit functional tests into one circuit-breaker testing workflow.
RCCE supports Canadian utility and industrial teams evaluating DV Power circuit-breaker test workflows. The system is designed so the CAT controls the SAT through USB, while test results from the SAT are displayed on the CAT touchscreen.
Workflow benefit: The official CAT + SAT application describes multiple functional tests performed without changing the test connection during the sequence.
What the combined system covers
| Test area |
CAT + SAT role |
| Timing and resistance |
Circuit-breaker timing, static resistance measurement (SRM) and dynamic resistance measurement (DRM), where the CAT is configured with its built-in micro-ohmmeter. |
| Auxiliary supply |
In Mode 1, SAT supplies the breaker’s auxiliary circuit for CAT-supported tests—up to 300 V DC or 250 V AC for coils and motor, according to the manufacturer. |
| Coil analysis |
In Mode 2, CAT relays connect SAT coil outputs to the trip and close coils so SAT operates as a coil analyzer. |
| Functional checks |
Minimum trip voltage, coil resistance, undervoltage coil functional tests and motor tests are included in the manufacturer’s Mode 2 workflow. |
A practical field sequence
- Confirm the breaker nameplate data, auxiliary-circuit type and applicable site procedure.
- Connect SAT motor output to the motor terminals and SAT coil outputs through CAT as specified in the official wiring method.
- Use CAT to set rated and minimum coil supply conditions, then complete the timing and resistance work in the planned test sequence.
- Use the coil-analyzer mode when minimum trip voltage, coil resistance, undervoltage and motor checks are required.
Safety note: Circuit-breaker testing must be planned and performed by qualified personnel under the owner’s isolation, lockout and safety procedures. Confirm the applicable equipment configuration and test limits before work begins.
Talk with RCCE
For help reviewing a CAT + SAT circuit-breaker testing workflow for your application, contact RCCE. We can help connect the test objectives, breaker auxiliary supply and measurement requirements to the appropriate discussion with the manufacturer.
Technical source: DV Power — Test System CAT + SAT for CB Testing.
How to evaluate CAT + SAT: One Connection for your workflow
Define the test object and normal operating condition first. Record the expected range, the smallest change that matters, the maximum condition the setup may encounter, and whether the result is for troubleshooting, acceptance, maintenance trending, production screening, or engineering analysis. These uses can require different accuracy, speed, isolation, memory, automation, and documentation.
Next, map the complete connection path. Include probes, clamps, sensors, fixtures, test leads, adapters, communication cables, power sources, and protective equipment. Check connector compatibility and physical access as carefully as the instrument specification. A technically capable main unit can still be the wrong choice if the required accessory is unsuitable for the conductor, terminal, frequency, voltage, temperature, or installation space.
Finally, test a representative workflow. Time the setup, confirm the operator can identify a poor connection, save the result, reproduce the measurement, and export the evidence in the format the team actually uses. A short application review or demonstration often reveals more than a long feature comparison.
Planning the measurement and reviewing results
Reliable results come from a controlled method. Document the test conditions, instrument configuration, accessory identifiers, connection points, stabilization time, environmental conditions, and any correction or compensation applied. Where safety procedures or isolation steps are required, include them in the job plan and follow the equipment manufacturer and site rules.
Before collecting production or field data, run a reference check on a known item or a repeatable baseline. Repeat the measurement after reconnecting when connection quality could influence the result. Review the raw value together with range status, warning indicators, time stamps, waveforms, trends, or phase information that the instrument provides. A single number without context can hide a setup problem.
For purchasing decisions, compare the evidence produced by each candidate under the same conditions. Separate mandatory requirements from useful conveniences, and include the cost of accessories, training, software, calibration, downtime, and future expansion. This produces a more defensible decision than comparing list price or one maximum specification.
Buying, renting or servicing in Canada
RCC Electronics supports Canadian utilities, manufacturers, laboratories, contractors, and maintenance teams from Ontario with shipment across Canada. Ask us to verify the exact model, option, accessory, lead time, and service path for your application. See RCCE services or contact the technical sales team. When a short project makes ownership impractical, ask briefly whether a suitable rental configuration is available.
FAQ: CAT + SAT: One Connection
What information should I provide before requesting a quotation?
Share the test object, expected range, required method or standard, environment, preferred reporting format, and any accessories already in use. Photos or connection drawings can help identify fixture and lead requirements.
Should I choose the widest measurement range?
Not automatically. Choose a range with suitable margin while also checking resolution, uncertainty, speed, input protection, and behaviour under the real test conditions.
Which accessories should be included?
Include every item needed to make the connection safely and repeatably. Confirm ratings and compatibility for probes, clamps, sensors, fixtures, leads, adapters, batteries, cases, and communication options.
How should I compare two candidate instruments?
Use the same representative test object and written procedure. Compare setup time, repeatability, operator effort, result clarity, export, support, and total configured cost.
Can RCC Electronics help with configuration and support in Canada?
Yes. RCC Electronics can review the application, check the current manufacturer documentation, confirm a suitable configuration, and discuss delivery and service options.
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* Specifications are summarised from manufacturer-published information and should be confirmed against the latest official datasheets before final selection. Standard numbers are listed only when supported by the cited manufacturer information or the applicable test procedure.
