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KYN28-6.6
KYN28-6.6 Indoor Metal – Clad Withdrawable Switchgear
6.6kV indoor metal armored withdrawable switchgear is a medium voltage distribution equipment designed for special industrial scenarios and some overseas standards. It complies with GB/T 3906-2020, IEC 62271-200, and ANSI C37.20.1 standards and is suitable for scenarios such as mines, ships, and overseas industrial projects that have special requirements for voltage levels. The equipment adopts a reinforced armor structure, optimized insulation design and mechanical strength, and has the characteristics of strong anti-interference ability, wide adaptability, and stable operation. It can achieve safe distribution, control, and protection of electrical energy in complex working conditions.
Features
1. Customized insulation design, suitable for special voltages:
Optimized insulation structure for 6.6kV voltage level, with insulation distance between phases and relative to ground increased to above standard requirements. High strength insulation materials are used to effectively resist voltage fluctuations and corona discharge, avoiding insulation breakdown faults.
2. Anti impact vibration, suitable for harsh working conditions:
The cabinet structure has been reinforced with thickened steel plates and reinforced connectors, significantly improving mechanical strength and withstanding impact scenarios such as mining machinery vibration and ship turbulence. At the same time, it has good electromagnetic shielding performance to reduce external interference.
3. Dual standard compatibility, suitable for overseas projects:
It meets both national and ANSI/IEC standards, and can customize voltage standards, wiring methods, and instrument configurations according to the needs of overseas projects. It supports installation sizes in both imperial and metric systems, and can adapt to different countries’ distribution systems without additional modifications.
4. Redundancy design to improve reliability:
the core components adopt dual circuit redundancy configuration, and key components such as circuit breakers and transformers are made of wear-resistant and anti-aging materials. At the same time, they are equipped with perfect fault self inspection function, which can early warn potential problems and reduce unplanned downtime.
The rated current of the product is 800A-3150A, and the short-circuit breaking capacity can reach 40kA-63kA, suitable for long-distance transmission and high load scenarios; The cabinet protection level can be selected from IP4X and IP54, and special scenarios can be customized with waterproof, dustproof, and anti-corrosion enhanced versions; Support manual/electric operation mode, and can configure intelligent control devices according to needs to achieve local and remote control; Provide a multilingual user interface and instruction manual, suitable for use in overseas projects.
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Specification
| PROJECT | UNIT | DATA | |
| Rated voltage | kV | 6.6 | |
| Rated frequency | Hz | 50 | |
| The rated current of the main bus | A | 630/1250 | |
| Current rating | A | 630/1250 | |
| Ground Loop Rated Short-Time Withstand Current (2S) | kA | 31.5 | |
| Rated short-time withstand current of main circuit (4S) | kA | 25/31.5 | |
| Rated peak withstand current (peak) | kA | 63/80 | |
| Rated short-circuit interrupting current | kA | 25/31.5 | |
| Rated insulation level | 1 minute power frequency withstand voltage | kV | intermittent to the ground: 20 |
| Fracture: 23 | |||
| Withstand voltage for lightning impulses | kV | intermittent to the ground: 40 | |
| Fracture: 46 | |||
| Ingress protection | The shell is IP4X | ||
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FAQs
Why is 6.6kV switchgear suitable for overseas projects?
Due to the use of 6.6kV voltage level distribution in some overseas countries (such as some Southeast Asian and African countries), this product is dual standard compatible and can be customized to adapt to local wiring methods, instrument specifications, and installation dimensions. At the same time, product certificates that comply with local certifications (such as UL and CE) are provided, without the need for additional adaptation and modification.
Can it be directly replaced with a 6kV product?
Cannot be directly replaced. There are differences in voltage level, insulation distance, and some parameters between the two, and direct replacement may lead to insulation breakdown, protection failure, and other issues. If replacement is required, the distribution circuit parameters need to be recalculated, and the wiring and component configuration need to be adjusted before installation.
How to prevent dust from entering the cabinet in mining scenarios?
Enhanced products with protection levels of IP54 and above can be selected. The cabinet adopts a sealed design, and the cabinet door is equipped with waterproof and dustproof sealing strips. The ventilation opening is equipped with high-efficiency filtering devices, and the filtering device and cabinet surface are regularly cleaned and maintained to effectively prevent mining dust from entering.
Does the product support ship level certification?
Support. According to the requirements of the ship project, CCS (China Classification Society), ABS (American Bureau of Shipping) and other classification certifications can be applied for. The cabinet structure and components are optimized according to ship standards, with ship specific characteristics such as salt spray resistance, vibration resistance, and waterproofing, suitable for ship engine room power distribution scenarios.
Related Applications
Mining project: Used for underground and surface power distribution rooms in coal mines and metal mines, providing power for mining machines, conveyors, ventilation equipment, etc. The reinforced structure can withstand mining vibrations and dust environments, and the redundant design can ensure continuous mining operations and avoid underground shutdowns caused by power distribution failures.
Ocean going vessels and port facilities: Suitable for the engine room power distribution of ocean going cargo ships and oil tankers, as well as the power supply of loading and unloading equipment and lighting systems at port terminals. Strong anti bounce and anti salt spray performance, dual standard compatibility can adapt to the power supply needs of different countries’ ports, ensuring stable ship and port operations.
Overseas Industrial Parks: Used for overseas industrial parks in Southeast Asia, Africa, and other regions that use 6.6kV voltage levels. It distributes power to production lines, refrigeration equipment, air compressors, and other equipment, and can customize locally adapted instruments and control modes, while meeting local electrical certification requirements, to assist in the landing of overseas projects.
Large scale oilfield development facilities: provide power supply for oil pumping units, water injection pumps, drilling equipment, etc., strengthen insulation and anti-interference design to cope with high temperature, high humidity, and electromagnetic interference environments in the oilfield, and redundant configuration can reduce oilfield development interruptions caused by power distribution failures, ensuring stable production capacity.
