DXNA1 series High Voltage Presence Indicating System is a safety device, which is installed in high voltage switchgear or high voltage electric equipment of indoor 50Hz, rated voltage 3.6kV-40.5kV, matched with CG series sensor, via LED display to show that if the equipment possess the proper running voltage, and possess the forced electrical locking function. This device meets the technical requirements of “Technical conditions for High Voltage Presence Indicating”.

Type explanation

For example: DXNA1-12/Q denote indoor high voltage electrified display with Trepanning 45×92, keystroke, self-test function, hole for live/phase, forcing type, rated voltage 12kV.

DXNA1-3.6/T denote indoor high voltage electrified display with trepanning 45×92, no keystroke, no hole for check live/phase, hint type, rated voltage 3.6kV.

DXNA1-12/Q-2J denote indoor high voltage electrified display with Trepanning 45×92, keystroke, self-test function, hole for live/phase, forcing type, two relays Locking function, rated voltage 20kV.

Features

1、The display is fitted with ultrahigh brightness LED. When high voltage equipment with the running voltage, the LED lights to warn user that equipment is energized.

2、Long service life. The problem of short service life resulting from neon lamp is overcome, the average work time without stoppage can exceed 70000 hours.

3、Reliable running. For the forcing type, due to adopting the switched power supply with high reliability, the trouble that the simple power using capacitor or power resistance for decreasing voltage is affected by fluctuating voltage; and the trouble when the display use this simple power supply, the service life is affected by high heat productivity of equipment are eliminated.

4、The power supply of forcing type with high adaptability is suitable for both AC application and DC application, range of input voltage are up to AC85～265V DC100～300V.

5、The forcing type adopts high reliable digital detecting technology to get the maximum detecting sensitivity (the effective locking occurs at 50% or less of rated voltage) to prevent relay output misoperation.

6、The front panel of the case may be dismantled, during running, if fault occur, detecting or replacing the inner chip or LED without cutting off the high voltage and open the door of switch cabinet.

7、For user, the configuration is flexible. In practice, if user need configurating sensor by himself, selecting sensor to be matched with the voltage grade and assuring the output current shorted to earth exceed 200μA.

Matching table for product and accessory

Connecting wire

Sensor

Phase checker