15kV SF6 integrovaná uzlová skriňa rýchlospojka

15kV SF6 integrated node switchgear quick connector

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I. Prehľad produktu

The 15kV SF6 integrated node switch cabinet quick connector is a dedicated quick connection device designed specifically for 10kV/15kV SF6 gas -insulated switch cabinets ( ring mains cabinets/integrated node cabinets). It enables rapid docking between the switch cabinet and bypass cables/transfer equipment, supports uninterrupted bypass operations, emergency power supply, and other scenarios, and can complete the live connection of the switch cabinet interface without power outage. It is a core supporting component for uninterrupted operation of SF₆ cabinets.

II. Product Characteristics

1. Electrical and insulation properties

It adopts a special insulation structure design for SF6 cabinets , is suitable for gas insulation environment, has excellent insulation performance, can withstand the rated voltage of 15kV system and short-time overvoltage, meets the operating requirements of the maximum working voltage of 17.5kV, and has a partial discharge of ≤10pC (1.5U₀).
It features a built-in high-purity copper conductive core, excellent conductivity, extremely low contact resistance, and can carry a rated current of 250A/630A. It does not generate heat or oxidize during long-term operation, meeting the requirements for high-current bypass power supply.
With its built-in optimized electric field structure and sealed insulation components, the interface electric field is evenly distributed, effectively suppressing partial discharge and preventing SF₆ gas leakage. It operates without the risk of electrolytic corrosion or breakdown during long-term operation, and its electrical and sealing performance is stable and reliable.

2. Structural and Safety Features

The standardized interface design strictly complies with the SF₆ integrated node cabinet industry standard and can be interchanged with the dedicated interfaces of mainstream 15kV SF6 switchgear , ensuring strong compatibility.
The integrated modular structure design and quick-lock connection mechanism enable rapid docking of the switch cabinet and bypass equipment without additional tools, significantly shortening the construction cycle for uninterrupted power supply operations.
It features a dual structure of positioning and anti-detachment, as well as gas sealing. The interface automatically locks after installation, while effectively sealing SF6 gas to prevent loosening and gas leakage during operation, thus improving system safety.
With a fully insulated protective design and high outer insulation strength, the outer casing can be directly touched during operation without the risk of electric shock, ensuring the safety of maintenance personnel.

3. Odolnosť voči životnému prostrediu a poveternostným vplyvom

With excellent weather resistance, it can adapt to a wide temperature range of -40℃ to +90℃. The performance of the conductive core and insulation components does not degrade under high and low temperatures, and there is no risk of cracking or embrittlement. It is suitable for indoor/outdoor SF₆ cabinet operation scenarios.
It is moisture-proof, waterproof, stain-proof, and salt spray-proof, with an IP67 protection rating. It can operate stably for a long time in harsh environments such as humidity, dust, and salt spray, and is not afraid of rain or condensation. It is also compatible with SF6 gas insulation environments, with no risk of gas leakage.
Anti-aging and corrosion resistant, the conductive inner core is tin-plated/silver-plated to prevent oxidation and corrosion. The insulating parts are made of materials resistant to SF6 decomposition gas, with a service life of more than 10 years. It is maintenance-free and reduces the cost of later operation and maintenance.

4. Mechanical and Adaptation Characteristics

It has high mechanical strength, is impact and vibration resistant, and can withstand mechanical stress during transportation, installation and operation without deformation or damage risk, making it suitable for complex on-site operating environments.
is compatible with 10kV/15kV SF6 integrated node switchgear, ring main unit, box-type substation and other equipment. It is highly versatile and can be used with mainstream bypass cables, transfer cables and current diversion equipment.
Modular design allows for repeated plugging and unplugging, making maintenance convenient and reducing equipment investment costs for uninterrupted power supply operations.

III. Technické parametre

Parameter categories	project	Technical indicators
Rated electrical parameters	Applicable system voltage (Un)	10kV/15kV
	Rated voltage (Ue)	15kV
	Maximum operating voltage (Um)	17,5 kV
	Rated frequency (fn)	50Hz/60Hz
	Power frequency withstand voltage	42kV/5min (suchý test), bez prierazu, bez preskoku
	Lightning impulse withstand voltage	95kV (peak value), no breakdown, no flashover
	Partial discharge quantity	≤10pC (below 1.5U₀)
	Rated current rating	250A/630A (voliteľné)
	Rated short-circuit withstand current	20kA/2s, 25kA/2s (voliteľné)
	Contact resistance	≤20μΩ
Structural and material parameters	Main material	Tin-plated/silver-plated copper (conductive inner core), SF₆ resistant insulating material (insulating components), stainless steel (locking mechanism/flange)
	Protection level	IP67
	인터페이스 표준	Compatible with dedicated interfaces for 15kV SF6 integrated switchgear, conforming to industry standards.
	Adapter devices	10kV/15kV SF6 integrated switchgear, ring main unit, bypass cable, transfer cable, etc.
	Tesnenie	Suitable for SF6 gas insulation environments, with no risk of gas leakage.
Environmental parameters	Applicable altitude	≤2000m (Customization available for high altitudes)
	Ambient temperature	-40℃/ +90℃ (operating temperature), -40℃/ +70℃ (storage temperature)
	relative humidity	≤100% (bez kondenzácie)
	Seismic resistance level	Level 8
Implementation Standards		GB/T 12706, DL/T 1476 “Preventive Test Procedures for Electrical Safety Tools and Equipment”, DL/T 814 “Distribution Automation Terminals”, GB 3906 “3.6kV~40.5kV AC Metal-Enclosed Switchgear and Controlgear”

IV. Rozsah platnosti

Applicable voltage levels : 10kV/15kV AC medium voltage power distribution systems, compatible with SF6 gas-insulated switchgear with a maximum operating voltage of 17.5kV .
Applicable work scenarios :
During uninterrupted maintenance and renovation of 10kV/15kV SF6 integrated node switchgear and ring main unit, rapid connection between the switchgear and bypass cable is used to construct a temporary bypass power supply circuit.
Uninterrupted bypass operations for SF6 cabinet power distribution lines in urban power distribution networks, power distribution systems in industrial and mining enterprises, and SF₆ cabinet equipment in new energy (photovoltaic/wind power) substations ;
Emergency power supply and uninterrupted maintenance of SF6 cabinets in indoor/outdoor power distribution rooms, prefabricated substations, and other scenarios .
Function and Purpose : To achieve insulation isolation and conductive connection between SF6 integrated node switchgear and bypass operation equipment, while ensuring the SF6 gas sealing performance, providing a safe and reliable connection solution for uninterrupted bypass operation of SF6 cabinets in medium-voltage power distribution systems.

V. Usage Conditions

1. Normal operating conditions

Výška: ≤2000 m
Ambient temperature: -40℃~+90℃; equipment operating temperature complies with relevant standards.
Relative humidity: ≤100% (no condensation);
Environmental conditions: No corrosive gases, no flammable or explosive media, no severe vibration or impact;
Installation method: The flange is fixed to the interface of the SF6 switchgear , and the other end is directly plugged into the interface of the bypass equipment. Horizontal or vertical installation is acceptable. The installation space must meet the requirements of plugging and unplugging operation and flange installation.

2. Special usage conditions (customization required)

The altitude exceeds 2000m;
The ambient temperature exceeds the range of -40℃ to +90℃;
Severely polluted, salt spray, and chemically corrosive environments;
High vibration and high impact conditions;
Non-standard interface specifications and special current rating requirements.

VI. Inštalácia a údržba

1. Požiadavky na inštaláciu

Before installation, inspect the product appearance for cracks, damage, and bubbles, and ensure that the insulation components are undamaged. Check that the conductive core, locking mechanism, and seals are intact, free from rust and deformation, that the locking mechanism is flexible and reliable, and that the seals are free from aging and damage.
Clean the inner walls of the SF6 switchgear interfaces and the surfaces of the connectors to remove oil, dust, and foreign objects, ensuring the interfaces are dry and clean; clean the surfaces of the bypass equipment interfaces to remove oil, dust, and foreign objects, ensuring the interfaces are dry and clean.
Apply a dedicated silicone grease lubricant evenly to the outer wall of the konektor interface to avoid damage to the insulation layer and seals during installation.
Secure the connector to the SF6 switchgear interface via the flange and tighten the bolts to the specified torque. Reliably connect the other end of the connector to the bypass equipment interface, ensuring it is fully in place and locking the positioning anti-disengagement mechanism. After installation, ensure there is no loosening or tilting.
After installation, insulation resistance test, power frequency withstand voltage test and SF6 gas tightness test shall be performed . Only after passing the test can it be put into operation.

2. Požiadavky na údržbu

Regularly inspect the product’s appearance for cracks, damage, discharge marks, and dirt accumulation. Ensure the connections to the switchgear and bypass equipment interfaces are secure and not loose, flange bolts are not loose or corroded, and seals are not aged or damaged.
Regularly test insulation resistance and contact resistance, and check the SF6 gas sealing performance to ensure that the performance meets the requirements and to promptly identify potential faults.
Clean the product surface and interfaces to remove dust and dirt, keep the insulating surface dry and clean, and avoid corrosion from oil and chemicals.
If a product exhibits abnormalities such as cracks, damage, discharge, overheating, excessive contact resistance, or gas leakage, it must be immediately stopped and replaced. Operation with defects is strictly prohibited.
Special insulated tools must be used for plugging and unplugging interfaces. It is strictly forbidden to operate live interfaces with bare hands. Power distribution safety regulations must be strictly followed during operation.

VII. Upozornenia

The product must be installed, debugged, and maintained by professional electrical personnel with qualifications for uninterrupted medium-voltage power distribution operations. Operation by non-professional personnel is strictly prohibited.
SF6 switchgear and bypass equipment of the corresponding specifications . It is strictly forbidden to use the wrong equipment with different voltage levels or different current levels, otherwise it will lead to insulation failure, safety accidents or gas leaks.
The product must not be disassembled or modified without authorization, otherwise the warranty and safety guarantee will be lost. It is strictly forbidden to use non-special tools to forcibly install or disassemble the interface and flange.
During installation, it is strictly forbidden to damage the insulating surface and seals. Silicone grease lubricant must be applied evenly to avoid affecting the insulation performance and sealing effect. Flange mounting bolts must be tightened to the specified torque to prevent loosening that could cause joint shaking, loosening of the interface, or gas leakage.
When storing, it should be placed in a dry, ventilated, and cool environment, avoiding direct sunlight, high temperature, humidity, and compression. It is strictly forbidden to contact with sharp objects that may damage the insulation and sealing components.
When plugging or unplugging interfaces while they are powered on, it is essential to strictly adhere to power distribution safety regulations, take appropriate safety precautions, and strictly prohibit any unauthorized operations.

VIII. Model Description

Model Identification	meaning
15kV	Applicable system voltage levels: rated voltage 15kV, maximum operating voltage 17.5kV
SF₆ integrated node switch cabinet quick connector	SF6 integrated node switchgear quick connector, used for quick docking of SF6 switchgear with bypass work equipment.
250A/630A	Rated current ratings, suitable for 250A/630A current loads respectively.

IX. Implementation Standards and Certification

International standards: IEC 60840 “Test methods and requirements for extruded insulated power cables and their accessories with rated voltage of 30kV and above (Um=36kV) to 150kV (Um=170kV)” and IEC 62271-200 “High voltage switchgear and controlgear – Part 200: AC metal-enclosed switchgear and controlgear with rated voltage of 72.5kV and below”;
National standards: GB/T 12706 “Extruded insulated power cables and accessories with rated voltage of 1kV (Um=1.2kV) to 35kV (Um=40.5kV)”, GB 3906 “3.6kV~40.5kV AC metal-enclosed switchgear and controlgear”, DL/T 1476 “Preventive test procedures for electrical safety tools and equipment”;
The product has passed the type test of the National High Voltage Electrical Apparatus Quality Supervision and Inspection Center and meets the national power industry standards.

X. After-sales service

Product warranty period: 18 months from the date of manufacture, or 12 months from the date of commissioning (whichever comes first).
During the warranty period, products will be repaired or replaced free of charge if quality issues arise.
We provide technical support, installation guidance, and customized services (adaptation to special specifications and working conditions).

Document Description

The technical parameters in this manual are based on standard operating conditions. Special operating conditions need to be customized according to actual needs. The final specifications shall be subject to the product technical agreement and type test report.