WARNING !
WARNING !
Be sure to not connect X cable of CT-T1 to secondary winding of a CT with
greater primary winding turns. Energizing these type of CTs from secondary
winding may induce very high voltage in primary winding.
6.7 Ratio measurement setup for voltage transformer VT
In order to use CT-T1 to measure the winding turns ratio of a voltage transformer, the H1 and H2
cables must connected to secondary winding and X1 and X2 cables must connected to primary
winding. Figure 15 shows an example of ratio measurement setup for a voltage transformer.
90225-1.30 Instruction Manual CT-T1
Page 31 of 62
Figure 15: Example measurement setup for a voltage transformer
WARNING !
WARNING !
Be sure to not connect X cable of CT-T1 to secondary winding of voltage
transformer. Energizing voltage transformer from secondary winding will
produce very high and dangerious voltage in primary winding.
7. Operation Elements
7.1 Main Input, Main Switch & Fuse
•
Connect the power cable to the Main Input. (1a)
•
Press the Main Switch to switch the CT-T1 on / off. (1b)
•
A slow acting Fuse (T 16A) protects the device. (1c)
(Use only the correct fuse type to replace it).
7.2 USB Interface
•
1× USB Host
•
1× USB Device
See Section 10.1.1 for more details.
7.3 RS Interface
•
1× RS-232
See Section 10.1.2 for more details.
7.4 Surveillance Switch
•
1× 4-pin Surveillance Switch connector
See Section 10.1.3 for more details.
Figure 16: Overview of the CT-T1’s operation elements
90225-1.30 Instruction Manual CT-T1
Page 32 of 62
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