ST-3/Flex-CT2500 | XT Series Accessory
Three-Phase Flexible Rogowski Coil Cable to perform either a Primary/Secondary Analysis or a Burden Test of Current Transformers
Connecting the Three-Phase Flexible Rogowski Coil Cable to the CT port on the front panel of the ST-3/XT3 Transformer-Rated Site Tester makes it possible to compare the primary to secondary current by performing either a Primary/Secondary Analysis or a Burden Test.
- Auto-detection and electronically compensated
- Accuracy 0.5%
- Current range 0A to 5,000 A.
- Window size of 10.67” (271 mm)
- Cable is 15 feet long
- Extension can be purchased separately
SKU: 9030-3015
Connecting the Three-Phase Flexible Rogowski Coil Cable to the CT port on the front panel of the ST-3/XT3 Transformer-Rated Site Tester makes it possible to compare the primary to secondary current by performing either a Primary/Secondary Analysis or a Burden Test.
- Auto-detection and electronically compensated
- Accuracy 0.5%
- Current range 0A to 5,000 A.
- Window size of 10.67” (271 mm)
- Cable is 15 feet long
- Extension can be purchased separately
SKU: 9030-3015
ST-3/Flex-CT2500 | Installation
The ST-3/Flex-CT2500 is used while testing the performance of a transformer’s primary and secondary current. The Primary/Secondary Test and the CT Burden test can easily be performed with the Probewell Connect 2.0 utility software.
The Primary/Secondary Analysis Test performs a CT Ratio analysis on the instrument transformers using the customer load. The secondary voltage or current reading is done directly at the meter base installation while the primary reading is done using the accessories. With both measurements, the real transformer ratio can be calculated and compared to the nameplate ratio.
The Secondary Burden Test is used to analyze the effect of a resistive burden on the CT’s behavior. Within the ST-3/XT3 CT metering tester is an array of high-accuracy resistors that can be (with the use of electromechanical relays) added to the secondary path of the CT meter to cause a burden.
The ST-3/Flex-CT2500 is used while testing the performance of a transformer’s primary and secondary current. The Primary/Secondary Test and the CT Burden Test can easily be performed with the Probewell Connect 2.0 utility software.
The Primary/Secondary Analysis Test performs a CT Ratio analysis on the instrument transformers using the customer load. The secondary voltage or current reading is done directly at the meter base installation while the primary reading is done using the accessories. With both measurements, the real transformer ratio can be calculated and compared to the nameplate ratio.
The Secondary Burden Test is used to analyze the effect of a resistive burden on the CT’s behavior. Within the ST-3/XT3 CT metering tester is an array of high-accuracy resistors that can be (with the use of electromechanical relays) added to the secondary path of the CT meter to cause a burden.
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