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Dxn8d-Q Voltage Indicator Vds for Ring Main Unit Rmu Arrester Load Break Switch Voltage Indicator
The DXN8D - Q high - voltage charged display is a charged - state indication and safety - protection device used for indoor high - voltage electrical equipment. It mainly consists of two parts: a sensor and a display. The sensor is usually installed in the cable chamber or bus chamber and is connected to the high - voltage busbar, while the display is mounted on the instrument door of the switch cabinet, used to visually show whether the circuit is charged.
Main Functions
Charged Indication: It visually shows whether the high - voltage circuit is charged through the display, reminding operators to pay attention to safety.
Forced Locking: It cooperates with the electromagnetic lock to realize the forced locking function of the switch cabinet door, preventing accidental entry into the charged compartment or misoperation.
Features
Non - contact Detection: The sensor adopts non - contact technology, which does not need to be in direct contact with the charged body, improving the safety and reliability of detection.
Directionality: The sensor has obvious directionality and can accurately detect whether the line is charged.
Self - test Function: The device has a self - test function, which can detect whether its working state is normal.
Forced Locking Function: Through the locking contact and the electromagnetic lock, it realizes the forced locking of the switch cabinet door to ensure the safety of operators.
Low Maintenance Cost: Since the sensor is not in direct contact with the charged body, there is no need to conduct partial discharge tests during installation and maintenance, reducing the maintenance cost.
Long Service Life: It adopts advanced technologies and materials to ensure that the device has a long service life.
Technical Parameters
Applicable Voltage: It is applicable to indoor high - voltage switchgear such as 6kV, 12kV, 20kV, 27.5kV, and 35kV.
Operating Frequency: 50Hz.
Ambient Temperature: Usually from - 25°C to + 40°C.
Relative Humidity: The daily average is not more than 95%, and the monthly average is not more than 90%.
Altitude: Not higher than 2,000 meters.
Application Scenarios
The DXN8D - Q high - voltage charged display is widely used in indoor high - voltage switchgear, distribution rooms, substations, and other places, providing important protection for the safe operation of power systems.
DXN8-Q vs. DXN8D-Q Parameter Comparison Table
Parameter
DXN8-Q
DXN8D-Q
Product Type
Basic HV live-line indicator
Smart multi-function HV live-line indicator
Core Functions
Live display, optional interlock
Live display, forced interlock, voltage test, self-check, phase verification
Rated Voltage
10kV, 12kV, 35kV (up to 40.5kV)
10kV, 12kV, 35kV (up to 40.5kV)
Power Supply
AC220V±10%, 50Hz
AC220V±10%, 50Hz (customizable)
Power Consumption
≤5W
≤5W
Operating Environment
-40ºC~60ºC, ≤95%RH
-40ºC~60ºC, ≤95%RH
Withstand Voltage
>2000V AC, 1min
>2000V AC, 1min
Interlock Output
Passive contact (requires external power for solenoid lock)
Passive contact (AC250V 5A)
Voltage Test Function
No (optional in some models)
Yes (with test port, requires voltage detector)
Self-Check Function
No
Yes (press self-test button to verify status)
Phase Verification
No
Yes (requires external phase comparator)
Communication Interface
No
Available in some models (supports remote monitoring)
