Medium-Voltage Power Distribution Project for a Large Chemical Industrial Park
Project Background
A newly constructed utility station in a national-level chemical industrial park required a reliable 10kV medium-voltage power distribution system to supply power to chemical processing units and utility equipment. The project demanded high standards for explosion prevention, corrosion resistance, safety interlocking, and uninterrupted power supply.
Solution
Dongguan Electric KYN28-12 Switchgear was adopted to establish the medium-voltage distribution system. Incoming cabinets, outgoing cabinets, PT cabinets, and bus coupler cabinets were configured to provide sectionalized power distribution and dual-power-source switching for various chemical facilities. Comprehensive relay protection and electrical interlocking systems were also implemented.
Project Results
The armored removable design allows circuit breakers to be withdrawn for maintenance without shutting down the entire busbar system, significantly reducing repair time and preventing production losses and safety risks caused by power outages.
The switchgear features a high protection rating, effectively resisting corrosive gases and dust commonly found in chemical plants. Its insulation performance remains stable during long-term operation, with no flashover or short-circuit incidents.
The comprehensive "Five-Prevention" interlocking system effectively eliminates operational errors and fully complies with the stringent electrical safety requirements of the chemical industry, ensuring safe and reliable plant operation.
10kV Power Distribution Project for a Large Commercial Complex
Project Background
A super high-rise commercial complex comprising a shopping mall, office towers, and a hotel required a highly reliable medium-voltage power distribution system due to its high load density and strict requirements for fault isolation and maintenance convenience.
Solution
Dongguan Electric KYN28-12 Switchgear was selected to build a dual-power-source 10kV medium-voltage distribution system. A single-bus sectionalized configuration was adopted to provide power distribution to different functional areas, with dedicated outgoing circuits for fire protection systems.
Project Results
The removable circuit breaker design allows maintenance and testing to be performed outside the cabinet without requiring additional external space, making it ideal for compact underground distribution rooms.
Faults in a single circuit can be quickly isolated without affecting other busbar circuits, ensuring uninterrupted operation of the shopping mall, office areas, and hotel facilities.
The equipment operates with low noise and excellent electromagnetic compatibility, preventing interference with communication systems and weak-current equipment while maintaining a stable electrical environment throughout the complex.
10kV Feeder Expansion Project for a 110kV Substation
Project Background
A county-level 110kV substation required the expansion of its 10kV outgoing feeder system to accommodate additional distribution circuits. The project demanded highly reliable equipment with easy maintenance and seamless compatibility with the existing power system.
Solution
Dongguan Electric KYN28-12 Switchgear was installed as the new outgoing feeder cabinets and integrated with the existing 10kV busbar system. Intelligent relay protection devices and online monitoring functions were incorporated to meet modern power grid automation and dispatching requirements.
Project Results
The switchgear offers a long mechanical service life, with stable circuit breaker performance capable of withstanding frequent operations and short-circuit current impacts, ensuring long-term safe operation of the substation.
Its modular design simplifies future expansion and eliminates the need for extensive modifications to the existing distribution system, significantly reducing project complexity and costs.
Intelligent monitoring functions enable real-time operational data collection, fault prediction, and remote supervision, improving maintenance efficiency and enhancing overall grid reliability.
Tertiary Hospital Power Distribution Upgrade Project
Project Background
A Grade III Class A hospital constructed new outpatient and inpatient buildings and required a 10kV medium-voltage power distribution system to supply critical loads such as operating rooms, intensive care units (ICUs), and large medical equipment. The project demanded exceptional power supply continuity, safety, and emergency power switching capability.
Solution
Dongguan Electric KYN28-12 Switchgear was selected to establish a dual-power-source 10kV medium-voltage distribution system. An automatic bus transfer function was configured to provide dedicated medium-voltage feeder circuits for critical hospital departments and ensure rapid switching to emergency power sources when required.
Project Results
The switchgear provides rapid fault-clearing capability, isolating faulted circuits within milliseconds and preventing disturbances from affecting critical loads, ensuring uninterrupted operation of essential medical equipment.
The removable circuit breaker design allows testing and maintenance without shutting down the busbar system, significantly reducing outage risks and improving power system redundancy.
Excellent insulation performance and the absence of partial discharge issues meet the stringent electrical safety requirements of healthcare facilities, providing reliable power support for patient care and medical operations.
