SDY-CTR

These voltage presence indicators are used along with capacitive insulators to get information from the grid they are connected to.

SDY 5811 is designed, tested and built following Enel DY 811 standard. It is built of four parts; one fix base and three removable parts, one for each phase.
The base is designed to connect the RGDAT device following Enelstandard GSTP001 (ex DY 1059).
Each lamp is remains turned off when the phase-to-phase voltage is lower than 2kV, on the other hand, it flashes when the voltage goes above 6,6 kV.

CTR is an acoustic voltage presence indicator. When the line voltage input exceed a certain level and, at the same time, the output is closed, it produces an acoustic signal.
This device receives signals from insulators with capacitive coupling, either bushings or post insulators, connected to the switchgear.
This device can work parallel with other voltage presence indicator like ENEL DY 811, without affecting the performances. (*).
When it is connected with Enel DJ 1054 capacitive insulators, CTR complies with Enel DJ 1550: it means that the voltage presence indicator does not beep up to 2kV. The alarm activates – when output is closed – above 6.6kV. This performance is guaranteed even if only one phase is running.

Insulators with capacitive coupling

Highest voltage for equipment (Um): 12kV – 17.5kV – 24kV

customizations are available