AVR-12 12kV Solid Insulation Electrical Switchgear Ring Main Unit

AVR-12 12kV Solid Insulation Electrical Switchgear Ring Main Unit

Ring Main Unit

The AVR series intelligent compact solid insulation switch equipment is the company based on the development needs of smart grid, integrates "intelligent, energy saving, environmental protection, maintenance free", combined with the actual situation and intelligent power grid construction requirements in combination with my country's distribution network. Secondary integration technology, developing production of independent intellectual property, domestic first intelligent permanent magnet (spring) vacuum switching equipment, integral, control, protection, communication and other functions, high intelligence. This product applies to power systems of 50Hz, 12KV, 24KV, 40.5KV, widely used in industrial and civil cable ring networks and power-on-end projects, and is the preferred equipment to ensure power grid safety, reliable, economical and efficient operation.

Model Description

AVR switchgear configuration

Note: For more configuration, please contact us.

Use environment

Name		unit	Environmental value
Amazing air temperature	Maximum temperature	℃	+50
	Minimum temperature		--40
	Maximum temperature difference	K	30
altitude		m	≤5000
Solar radiation intensity		W / cm2	0.1
Contamination			Ⅳ
Ice thickness		mm	10
humidity	Daily relative humidity average	%	≤100
	Monthly relative humidity average		≤95
Tolerate earthquake		level	≤8

Note: Environmental parameters are exceeded in the previous table, please contact us.

Product features

Protective function	The fault current can be automatically identified, realizing the transient current speed, time-limited current speed, timing overcurrent, directional overflow, overvoltage, undercarrons, and cool load start suppression, cold load start suppression break.
Measurement function	It can measure the three-phase current, three-phase voltage, active power, reactive power, active power, reactive power, peak / valley, power factor and frequency.
control function	The local operation and distant control can be realized, and the fault location of the line can be automatically implemented, fault isolation and quickly restore non-fault line power supply, realize the low frequency automatic load, automatic capacitor automatic and related control functions.
Data recording function	Information such as operation, operation, and failure can be automatically recorded.
Intelligent function	On-line integrated analysis of the grid parameters, online monitoring of the performance parameters of the circuit breaker, online programming, can cooperate with the main station of the distribution network, implement remote control management of switching equipment, realize local, distant or hierarchical control Automation system function.

isolation-down switchgear isolation-up switchgear

IsolatedOutline map andshapesize

Switch device interval	Switch Device Dimensions (mm)			Total weight (kg)
Switch device interval	W	D	H	Total weight (kg)
Eighth spacer	3000	650	1660	1600
Seven intervals	2625	650	1660	1400
Sixth	2250	650	1660	1200
Five-level	1875	650	1660	1000
Four intervals	1500	650	1660	800
Three-horizontal	1125	650	1660	600
Two intervals	750	650	1660	400

IsolatedOutline map and installation dimensions

Switch device interval	Switch Device Dimensions (mm)			Total weight (kg)
Switch device interval	W	D	H	Total weight (kg)
Eighth spacer	3000	905	1660	1760
Seven intervals	2625	905	1660	1540
Sixth	2250	905	1660	1320
Five-level	1875	905	1660	1100
Four intervals	1500	905	1660	880
Three-horizontal	1125	905	1660	660
Two intervals	840	905	1660	440

Switch device interval	Switch Device Dimensions (mm)			Total weight (kg)
Switch device interval	W	D	H	Total weight (kg)
Sixth	3000	780	1800	2240
Five-level	2500	780	1800	1860
Four intervals	2000	780	1800	1480
Three-horizontal	1500	780	1800	1100
Two intervals	1000	780	1800	740

Outline map andshapesize

Switch device interval	Switch Device Dimensions (mm)			Total weight (kg)
Switch device interval	W	D	H	Total weight (kg)
Five-level	3500	1130	2200	3750
Four intervals	2800	1130	2200	3000
Three-horizontal	2100	1130	2200	2250
Two intervals	1400	1130	2200	1500

Rated voltage	KV	12	24	40.5
Rated current	A	630/1250	630/1250	1600
Rated frequency	Hz	50
Rated short (1min) power frequency tolerance voltage (on ground / broken)	KV	42/48	65/79	95
Rated lightning impact tolerance voltage (on ground / broken)	KV	75/85	125/145	185
Rated short circuit opening current	ka	20/25	25	25
Rated short-circuitry current (peak)	ka	50/63	63	63
Rated short-term resistance (4S)	ka	20/25	63	63
Rated peak tolerance	ka	50/63	63	63
Rated short-circuit current break	次	30
Operating agency		Permanent magnet / spring
Vacuum circuit breaker mechanical life	次	1000 (30000 permanent magnet)
Life of isolation / ground switch	次	3000
Enclosure rating		IP4X
Circuit breaker rated operation order		O-0.3S-CO-180S-CO

Note: Technical parameters exceed the scope of the previous table, please contact us

The outdoor hydrophobic epoxy resin is used as an insulating material, with a life of more than 40 years, vacuum arc, solid insulation, oilless, no sf₆No environmental pollution, no explosion and gas leaks, meet environmental requirements.

Fully sealed waterproof design, high voltage conductor is not exposed, especially for humid and flooded regions, can be reliably powered in wet and water.

The operating mechanism can select a permanent magnet operating mechanism or a spring operating mechanism according to user habits and actual needs.

Isolation, ground switch and circuit breaker integrated design, compact structure and have a sound mechanical and electrical interlock design, which can effectively prevent errors.

A rapid algorithm with national patent technology (patent number: ZL200720037710.7) can be used, so that the circuit breaker has a rapid breaking capability, and it can quickly isolate the fault line. Take 10kV permanent magnetite network cabinet as an example from detection failure to the circuit breaker. The fault line time is less than 25 ms, which can effectively avoid the problem of cross-level trip.

A single-phase grounding protection system with national patent technology (patent number: ZL201020178325.6) can be used, and there is no need to increase the configuration of online judgment on single-phase ground failure of small current grounding systems, and give a alarm or trip operation according to the set value. .

It is equipped with a complete charge display device and a reliable switch position indication.

Modular design, can be extended as needed.

Compact compact, small size, light weight, convenient installation.

Isolation of the fracture visual, in line with safety standards.

The temperature measurement and temperature correction technique is used, so that the switching equipment can be reliable and stable under different environmental conditions in the country.

Note: For additional functional requirements, please contact our company.

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