SDQ - Phase Sequence Indicator

Hauptbild - SDQ - Phase Sequence Indicator
Properties

  • Phase sequence monitoring

  • Phase display (option)

  • Relay output (option)

  • Low self-consumption

Description

The SDQ three-phase field direction indicators in panel-mounted housing are used to monitor the phase sequence in three-phase grids. They are available in different versions and for different mains voltages and frequencies. All versions of the phase sequence indicators have a connection for the neutral conductor. However, this must only be connected in the SDQxx/P and SDQxx/PR versions, as otherwise the (possibly still existing) third phase voltage will not be displayed if two phase voltages fail. For this reason, only the SDQxx and SDQxx/R versions are suitable for use in a three-wire network (without neutral conductor).

Variants

SDQ 72 72 x 72 mm for panel mounting
SDQ/P 72 72 x 72 mm for panel mounting, with phase display
SDQ/R 72 72 x 72 mm for panel mounting, with integrated Relay
SDQ/PR 72 72 x 72 mm for panel mounting, with phase display and integrated Relay
SDQ 96 96 x 96 mm for panel mounting
SDQ/P 96 96 x 96 mm for panel mounting, with phase display
SDQ/R 96 96 x 96 mm for panel mounting, with integrated Relay
SDQ/PR 96 96 x 96 mm for panel mounting, with phase display and integrated Relay

Function

In the simplest version SDQ72 or SDQ96, the "correct" (i.e. the right) rotating field is indicated by a green area LED, a left rotating field by a red area LED. If a phase voltage fails, there is no longer a complete rotating field and both LEDs light up with reduced brightness. The SDQxx/P version is equipped with three additional area LEDs which serve to monitor the three-phase voltages (L1, L2 and L3). The SDQxx/R version includes a relay that is activated when a right-hand rotating field is present. The SDQxx/PR version includes both the three LEDs for monitoring the phase voltage and the relay.

Downloads

I have read the Privacy policy and acknowledge it.

Related Products

(K)DQe - Power meter for active and reactive power
(K)DQLe - Power Factor Meter
(K)PQFe - Pointer Frequency Meter
PQFeDd - Double Pointer Frequency Meter

Cookie settings

We are continuously improving our website and we use cookies for this purpose. For an optimal user experience, we recommend that you accept them. Otherwise, parts of the page will be deactivated in the display in accordance with data protection regulations.

Privacy policy