DXN series indoor high-voltage live display deviceDetailed product description：

DXN series indoor high-voltage live display device

2.2 Classification of Display Devices
a. Divided by rated voltage level: 3, 6, 10, 27.5, 35KV;
b. According to the environmental conditions of sensor usage, it can be divided into: ordinary type, reinforced insulation type (all working condition type);
c. Divided by sensor structure and installation dimensions: see Table 2;
d. Divided by display function: T-shaped, Q-type;
e. Divided by the external dimensions of the monitor: Type I, Type II; Refer to Figures 8 and 9;

2.3 Basic parameters of display device
The basic parameters of the display device are shown in Table 1

Table 1

Project Name				unit	data
sensor	rated voltage			KV	three	six	ten	twenty	twenty-seven point five	thirty-five
	Maximum operating voltage Um				three point five	six point nine	eleven point five	thirty-one point five	forty point five
	rated frequency			Hz	fifty
	Insulation level	Power frequency withstand voltage (effective value)	Once to twice to the ground	KV	twenty-five	thirty-two	forty-two	sixty-five	eighty	one hundred
		Lightning impulse withstand voltage (peak value)			forty	sixty	seventy-five	one hundred and twenty-five	one hundred and eighty-five	one hundred and eighty-five
		partial discharge		PC	≤10
	bending strength			KN	eight
monitor	Neon lamp ignition voltage			KV	zero point five two	zero point eight seven	one point seven three	two point three eight	three point zero three
	Locking start control voltage				one point nine five	three point nine zero	six point five zero	thirteen	seventeen point eight eight	twenty-two point seven five
	Secondary lockout power supply voltage			V	220    -100

Note: If the voltage of the secondary locking power supply exceeds the specifications in Table 1, it shall be resolved through consultation between the user and the manufacturer.
3. Structure Overview The sensors and displays of the display device are connected through external wires to form a capacitive voltage divider circuit (see schematic diagram in Figure 1)
3.1 Sensors The sensor is made of pillar insulator type and embedded with high-strength dielectric functional material to form a core rod capacitor C1. One end of C1 is connected to the high-voltage bus through an upper flange, and the other end of C1 is connected to the lower end (secondary terminal) of the sensor (see Figure 2). The external structure of the sensor is made into different heights and various umbrella skirts according to the matching requirements (as shown in Figure 4-7). According to installation requirements, the upper flange is made with single screw holes, double screw holes, and four screw holes (specific hole diameter, hole spacing, and hole number are shown in Table 2). There are two types of external insulation structures for sensors: a. The sensor is made of an outer insulation sleeve made of high-voltage porcelain cloth, with a high-voltage capacitor C1 buried in the middle, and its model is CG1 (see Figure 2). b. The sensor is made of outer insulation sleeve and high-voltage capacitor C1, made of SMC material with flame retardancy and hydrophobicity, and made of silk. Its model is CG3 (see Figure 3).
3.2 Monitor The display functions include prompt type and forced type. The prompt type has single display (i.e. three sensors with one display, wiring principle shown in Figure 10) and dual display (i.e. three sensors with two displays, wiring principle the same as single display), with the two displays installed on two different sides of the switchgear. Warning neon lights are not allowed to rest. Compulsory type: It not only has all the functions of prompt type, but also uses pumping signals to control electronic switches and cooperates with electromagnetic locks to perform compulsory locking. When only one phase of the three-phase circuit is charged, the electromagnetic lock cannot be unlocked. The direct key switch in the monitor is used to select the working and resting status of the neon lamp. When the neon lamp is in a resting state, the strong wire locking circuit cannot be unlocked (see wiring principle in Figure 11). Note: Type I displays come in two types: prompt type and forced locking type. The Type II monitor only has a prompt type and does not have a forced locking function. 4. Appearance and installation dimensions 4.1 The appearance and installation dimensions of the sensor are shown in Figure 4-7 and Table 2.

DXN series indoor high-voltage live display device