66kV د سه فازی لوبګریز شوی ګړنډ ترانسفرمر

Product Overview
Rockwill د یو موثق او لوپرمفېر ترانسفورمرز وړاندې کوي چې د 66kV پاور سیسټمونو لپاره جوړ شوي دي. د ماښام پر غمر شوي ترانسفورمرز د استحکام پرتله او عملیاتي امنیت او سیسټم محافظت لپاره جوړ شوي دي. د ملي او بین المللی معیارونو، په وړاندې IEC او GB سره موافق ډول جوړ شوي دي، دا ترانسفورمرز د پرم خوب متریالونو او د پروسو له پرمخوا تر پرمخوا کوالیټي کنټرول سره جوړ شوي دي.

Basic Info.

Key Features

• Voltage Class: 66kV system voltage (200 BIL)

• Capacity Range: Standard units from 100kVA to 10,000kVA

• Winding Configuration: Optimized zigzag (ZNyn) design

• Cooling System: ONAN/OFAF cooling options

• Insulation: Mineral oil or synthetic ester fluid

• Construction:

• Corrugated tank or radiator cooling

• Hermetically sealed or conservator tank options

• CRGO silicon steel core

• Copper/aluminum windings

Technical Advantages

• Enhanced Safety: Built-in Buchholz relay and pressure relief device

• Low Impedance: Zero-sequence impedance <15&Omega; for effective fault current management

• Durability: Corrosion-resistant paint system for outdoor installations

• Efficiency: Reduced no-load losses through optimized core design

• Flexibility: Off-circuit tap changer (&plusmn;5% in 2.5% steps)

Typical Applications

Utility Networks:

• Neutral grounding for 66kV transmission systems

• Arc suppression coil connections

• Resistance grounding systems

 Industrial Plants:

• Petrochemical facilities

• Mining operations

• Steel manufacturing plants

Renewable Energy:

• Wind farm collector stations

• Solar PV substations

• Hydroelectric plants

Performance Specifications

• Temperature Range: -30&deg;C to +40&deg;C ambient

• Humidity: &le;95% monthly average

• Altitude: Up to 2000m ASL

• Sound Level: &le;75dB at 1m

• Efficiency: &ge;99.2% at full load

Testing Protocol
All units undergo comprehensive testing including:

• Zero sequence impedance measurement

• Induced overvoltage test (260Hz)

• Lightning impulse test (350kV)

• Temperature rise test (65K max.)

• Oil dielectric strength test (&ge;50kV)

Service Conditions

• Suitable for indoor/outdoor installation

• Wind resistant up to 35m/s

• Non-explosive environments

• Seismic capability: 0.3g horizontal acceleration