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400V Self-healing Capacitor-cylindrical BKMJ0.46-30-3

1.Rated Voltage(Ue)：250v~525v, up to 2000v
2.Frequency：50/60Hz
3.Compact design，equipped with grounding bolt
4.Potting material: PU resin (soft resin)
5.Easy installation and wiring
6.Small size, Light weight
7.Self-healing, Maintenance-free
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50KVAR Self-healing Capacitor for PFC(Power factor correction)-square BKMJ

1.Rated Voltage(Ue)：100v~1000v
2.Installation Indoor
3.Case material Galvanized steel sheet
4.Output Range 10~100kvar
5.Frequency 50/60Hz
6.Connection configuration D, Y, YN, III
7.Terminal Block ：M6, M8, M10 (According to capacitor power)
8.Lose tanδ<0.001 (20°C 50Hz)
9.Temprature -25°C~50°C
10.Highest Altitude 2000m
11.Capacitor (to wall) pitch ≥50mm
12.Capacitance Deviation -5%~+10%
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BKMJ0.4KV Submerged Arc Furnace Capacitor

1.Frequency 60Hz
2.Capacitance Deviation -5%~+10%
3.Max Current 2.5×In
Equipped with discharge resistors
4.Integrated with independent over-voltage protection devices
5.Superior self-healing performance and extended service life
6.Low-loss factor, dry-type design with leakage-free construction
7.Equipped with discharge resistors
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10KV High voltage Shunt High-Voltage Capacitors

1.Rated Voltage:6kV,10kV,35kV
2.Rated Capacity:1-100Mvar(per bank)
3.The capacitor is mainly consisted of container and device body.
4.The core is consisted of severalelements and insulation parts. The element is rolled, pressed andmade of two aluminum foilsand somepiece of thin dielectric polypropylene films sandwiched betweenthe two aluminum foils. In order to reach the differentdemand of voltage and capacity, the elements in core is connected by someseriesand parallelmethod. The technology of aluminum foiledge folding and protruding weldingare used to reduce the loss and increase the performance of partial discharging.
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LW8-40.5 Outdoor SF6 Circuit Breaker

1.Rated Voltage:35kV
2.Highest Voltage:40.5kV
3.Rated Current:1600/2000/2500/3150A
4.Superior Breaking: Compressed-gas arc interruption ensures ultra-short arc times, high electrical endurance. Interrupts 31.5kA at rated voltage 21 times without maintenance or SF6 replacement.
5.High Reliability: Mechanical life >3,000 operations. Supports frequent use. Optional integration of up to 12 CTs per unit.
6.Advanced Monitoring: MKZ-type SF6 density gauge maintains accurate readings unaffected by temperature.
7.Compliance: Meets GB1984-89 & IEC 56 standards.
8.Operation: Equipped with CT14 spring-operating mechanism.

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Product Introduction

1.LW8-40.5 Outdoor SF6 Circuit Breaker: Reliable Power Protection for Demanding Environments

When managing high-voltage transmission networks, you need equipment that combines durability, precision, and compliance. The LW8-40.5 Outdoor SF6 Circuit Breaker delivers exactly that. Designed for 35kV–40.5kV systems, this advanced circuit breaker uses SF6 gas insulation to ensure stable performance in extreme temperatures (-30°C to +55°C), seismic zones, and corrosive environments. With certifications like IEC 62271-100 and GB/T 11022, it’s trusted by utilities globally to minimize grid downtime and maintenance costs.

LW8-40.5 Outdoor SF6 Circuit Breaker

2.Technical Specifications at a Glance

NO.	Parameters		Unit	Value
1	Rate Voltage		kV	35
2	Highest Voltage		kV	40.5
3	Rated Insulation Level	Lightning impulse withstand voltage	kV	185/215(Break)
		(full wave peak)
		Industrial frequency withstand voltage	kV	95/118(Break)
		(1 minute)
4	Rated Current		A	1600/2000/2500/3150
5	Rated short-circuit breaking current		kA	20/25/31.5/40
6	Rated operating sequence			0--0,3s--CO--180s--CO

7	Mechanical life		Ops	5000
8	Annual gas leakage rate			≤1%

9	Sulphur hexafluoride gas moisture content(20℃)		uL/L	≤150

3.Key Features & Advantages

1. Unmatched Durability in Harsh Conditions

The product features an IP65-rated enclosure and seismic resistance up to 9 intensity. Its compressed-gas arc quenching system ensures rapid interruption (<50ms) even during frequent capacitive/inductive load switching.

2. Maintenance Simplified

Precharged with SF6 gas at the factory, onsite installation requires only gas top-ups and mechanical connections. The MKZ density gauge provides real-time gas pressure monitoring, eliminating guesswork.

3. Retrofit-Ready Design

Replace legacy oil-based breakers (e.g., DW8-35) seamlessly using our transition base. No civil engineering modifications needed—ideal for urban grid upgrades.

4. Energy Efficiency & Safety

Optimized SF6 usage reduces greenhouse gas leakage (<0.5%/year) while maintaining arc-quenching efficiency.

4.Where It Excels: Real-World Applications

Be used in a wide range of industries.

Industrial Plants

Eliminate power factor penalties in CNC machines and assembly lines while handling surge currents up to 100x rated capacity.

Substation

Stabilizes substation voltage against harmonics and intermittent generation from renewable inverters.

Commercial Buildings

Retrofit aging systems in hospitals or malls with silent (<45dB), flame-retardant capacitors that meet NFPA 70 fire codes.

5.Built to Last: Manufacturing & Quality Assurance

Every LW8-40.5 Outdoor SF6 Circuit Breaker undergoes 12+ quality checks at our ISO 9001-certified facility. Components like the CT14 spring mechanism are tested for 10,000+ cycles, and enclosures are coated with anti-corrosion materials for coastal/industrial zones.

6.Why Partner With Us?

Proven Expertise: 20+ years in high-voltage equipment R&D, including China’s 863 Program.
Certifications: ISO 9001, ISO 14001, and IEC， IEE-CB for global compliance.
End-to-End Support: 24/7 technical assistance, predictive maintenance plans, and spare parts logistics.

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7.FAQs

Q: How does it handle frequent capacitor bank switching?

A: The gas pressure design prevents re-ignition, safely handling 1500–2000A capacitive currents.

Q: Is seismic testing certified?

A: Yes, independent tests confirm 9-degree seismic resistance via reinforced flanges and low design.

Q: Can we integrate IoT sensors?

A: Optional real-time monitoring modules track gas density, contact wear, and operating cycles.

Q: What’s the expected lifespan?

A: With proper maintenance (annual SF6 checks), units operate reliably for 20+ years.

8.Contact Us

Need a Custom Solution?

Email our engineers at xaxd_electric@163.com for tailored configurations, bulk pricing, or site-specific retrofitting plans.

Optimize your grid’s reliability today with the LW8-40.5 Outdoor SF6 Circuit Breaker—where innovation meets endurance.

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12.Application Cases

State Grid systems, power engineering, steel and metallurgy, petrochemicals, rail transportation, energy and water conservancy, construction, environmental protection, and renewable energy sectors