DXN-5T High Voltage Indicator with Sulphur hexafluoride Switchgear equipment
High voltage electric display devices using neon lamps as display elements are widely used in distribution cabinets. After a long period of operation, a high loss of visibility and extensive damage to neon bubbles are found. In order to compensate for the defect, a neon light running / closing switch was installed on the electric display device, which was in a state of turning off at normal times, thus temporarily deactivating the whole high-voltage electric display device.
This treatment loses the role of a high-voltage live display device as a monitor for whether the line side is charged.The brightness of neon lamps is low, especially in bright environments where the brightness is scoured and less visible.The old type of high-voltage electric display device with mandatory electrical latching, which is too simple in principle, consists of half wave rectifying and directly combining the signals from the A, B and C phase sensors to control the latching circuit. In this way, when the system has an anomaly of single phase grounding or absence phase, the drift of the locked-in control voltage can lead to the accident of the electrically connected grounding switch.
| Item | Technical data |
| Rated voltage (KV) | 3.6 | 7.2 | 12 | 24 | 40.5 |
| Rated frequency(Hz) | 50 |
| Insulator(capacity) | insulating | Frequency withstand voltage 5 min (KV) | 25 | 32 | 42 | 68 | 100 |
| Frequency withstand voltage 1 min (V) | 2000 |
| Lighting impulse withstand voltage (KV) | 40 | 60 | 75 | 125 | 185 |
| Local discharge (pc) | ≤10 |
| Phase | 3 P |
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