XGND-12(40.5)kV box type metal enclosed switchgear

Description

Product/performance characteristics

Environmental conditions of use

Ambient air temperature is not higher than +40 °C, not lower than -25°C; · The average daily relative humidity does not exceed 95%;
The average daily water vapor pressure does not exceed 2.2kPa· The average monthly relative humidity does not exceed 90%, and the average monthly water vapor pressure does not exceed 1.8kPa: the surrounding air is not significantly exposed to dust, smoke, corrosive or flammable gases or vapors or salt spray contamination

When there is no significant shaking or shock vibration, the vertical installation inclination should not be greater than 5 degrees; The altitude does not exceed 1000m
If the above conditions cannot be met, the user shall consult with the manufacturer.
Xgn-12 (40.5) switchgear has a variety of miniaturized designs, which can be used as power control, metering, distribution and transformer protection. It can provide the perfect solution for high voltage distribution systems and is widely used in the following situations:

The traditional switchgear of the substation is used as the input and outlet line of the high voltage side, transformer protection and high voltage measurement. The switchgear is installed in an independent distribution room, which has the advantages of convenient installation and reliable use.
Box-type substation switchgear is installed in outdoor metal box, which has the advantages of flexible use, low cost and short construction period. It can be operated by electric power, can be equipped with RTU, FTU and other relay protection devices, and can be equipped with backup operating power supply.
Box-type opening and closing station 1 is used for power control, metering and transformer protection. It can be used with compact SF6 ring switchgear or vacuum load switchgear to combine different solutions.
Cable distribution box with switch - equipped with perfect cable connection accessories, as the control and distribution of electric energy. The vacuum circuit breaker is installed in an outdoor metal enclosure. Can use electric operation, can be equipped with RTU and other electrical protection devices.

Overload capacity/technical parameters

Basic technical parameters of switchgear

serial number	name of parameter	unit	XGND-12	XGND-40.5
1	nominal voltage	KV	12	40.5
2	rated frequency	HZ	50	50
3	rated current	A	630、1250、2500	1250、1600
4	Rated short-time withstand current (4s)	kA	25、31.5、40	25、31.5
5	Rated peak withstand current (peak)	kA	63、80、100	63、80
6	Rated peak break closing current (peak)	kA	63、80、100	63、80
7	Rated circuit breaking current	kA	25、31.5、40	25、31.5
8	1min power frequency withstand voltage, phase to phase and ground/fracture	kV	42/48	95/115
9	Lightning impulse withstand voltage (peak) phase to phase and ground/fracture	kV	75/85	185/215
10	Rated short circuit breaking times	次	50	30
11	level of protection		IP4X

Circuit breaker basic technical parameters

serial number	project	unit	ZNQ-12	ZND-40.5
1	Contact item	mm	10+1	20+2
2	contacting travel	mm	3+0 5	3+0.5
3	Contact closing bounce time	ms	彡2	彡2
4	Three phases, different closing time	ms	彡2	彡2
5	Average closing speed	ms	0.4-0.8	0.4-0.8
6	Average opening speed	ms	0.9-1.4	1.6-2.0
7	opening time	ms	彡50	彡70
8	closing time	ms	彡70	彡70
9	Rated operating voltage of sub and gate	V	AC 1101220	AC 1101220
10	Rated voltage of energy storage motor	V	DC 110/220	DC110/220
11	energy storage time	s	彡15	彡15
12	Energy storage motor power	w	70	70
13	Closing and opening trip power	w	363	363
14	Cumulative allowable wear thickness of static and static contacts	mm	3	3
15	Rated operating sequence		分-0.3S合分-180S-合分
16	Main circuit resistance	nQ	630A彡50 1250A彡 45 2000A彡 35	1250彡 45 1600彡 35
17	mechanical life	次	10000

Sprache

XGND-12(40.5)kV box type metal enclosed switchgear