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High-Voltage Live Display Device

This product is designed to provide operating personnel with information on the circuit voltage conditions at the installation location of switchgear. Its internal circuitry employs low-power light-emitting diodes, offering low power consumption, stable performance, and high reliability. To facilitate on-site phase verification for users employing dual power supplies, the display can be optionally equipped with a panel-mounted phase-testing terminal. It is suitable for indoor high-voltage electrical equipment rated at 3.6–40.5 kV and operating at 50 Hz/60 Hz, and is intended for use in conjunction with voltage sensors to indicate the energized status of high-voltage circuits. When paired with disconnect switches and earthing switches, it further enhances the error-prevention performance of the associated equipment.
Category: High Voltage Live Display Series
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Product Inquiry
fhdq@fhdq.com

Product Features

● High precision and reliability: high sensitivity and stable operation under complex operating conditions.
● Long lifespan and low power consumption: The display module utilizes long-life, high-efficiency LEDs, resulting in low power consumption and reduced maintenance requirements.
● Environmental adaptability: Indoor products can operate reliably under a wide range of indoor conditions, featuring triple-protection design and a broad operating temperature range.

● Anti-interference capability: Designed for high-voltage electromagnetic environments, this product features strong electromagnetic interference resistance to ensure accurate display and control.
● Easy installation: Simple to install and remove, making it convenient for mounting on electrical equipment.

Working conditions

Ambient temperature: -25°C to +40°C;

Altitude: not exceeding 3,000 m;

The daily average relative humidity of the environment shall not exceed 95%, and the monthly average shall not exceed 90%.

No flammable, explosive, or corrosive environments.

Implementation Standard

GB25081

Technical Specifications

Project Name

Unit

Data

Rated voltage

KV

6

10

20

35

Maximum operating voltage

7.2

12

24

40.5

Rated frequency

Hertz

50

Insulation test

Withstand voltage of the high-voltage side at power frequency

Kv

32

42

68

95

Power-frequency withstand voltage between the high-voltage terminal and ground

2

Lightning impulse withstand voltage

60

75

95

185

Partial discharge

PC

≤10

Capacitance value

Pf

160±10%

125±10%

80±10%

45±10%

Monitor

Forward voltage of a light-emitting diode

KV

0.90

1.50

3

5.25

External Dimensions and Opening Sizes (mm)

DXN11-T4 (Prompt Type), DXN11-T4B (Electrified Railway Type)

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