Toughened glass insulators produced by Shenyang Tronco Electric provide the highest level of performance and long-term security for high voltage insulation. 

STRUCTURE

Glass insulator consists of cast-iron cap, toughened glass body and pin which are agglutinated together by cement into an integrated piece. Cylindrical head has been adopted for insulators, which is the most advanced structure in the world with superiorities such as less dimension, lighter wieght, higher strength and longer creepage distance which can save metallic materials and reduce transmission line cost. 

Most High-voltage lines use ball & socket type toughened glass insulator, which is also called cap & pin. Cross-section is as below. Tongue & Clevis assembly is also used for glass disc insulator.

 Fig. 1 Ball & Socket disc insulator Cross section                                                                                                  Fig. 2 Insulator string Tongue & Clevis Ball& Socket

Glass disc insulator standard profile/anti-fog Type

ADVANTAGES

• Zero spontaneous breakage and easy inspection.
• Excellent arc-resistance and vibration-proof performance.
• Good self cleaning and leass ageing.
• Large electric capacitance, homogenous distribution of voltage on single string insulators.

PRODUCTION & TEST LAB

MANUFACTURING PROCESS

MECHANICAL & VOLTAGE RATING

Toughened glass disc insulator 40kN up to 300kN, 11kV up to 765kV.

STANDARD

Tronco Electric glass insulators comply with IEC60383.

APPLICATION

Glass insulators are applied in HV and Extra HV transmission lines as dielectric and use for suspending conductors.