
380kV Voltage Transformer (Gas-insulated)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

330kV Capacitor Voltage Instrument Transformer (Oil-insulated)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

330kV GIS Current Instrument Transformer
Guangdong Sihui Instrument Transformer Works Co., Ltd.

330–380kV Combined Instrument Transformer (Gas-insulated)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

220kV Station-service Voltage Instrument Transformer (Oil-insulated)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

220kV Voltage Instrument Transformer (Oil-insulated)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

220kV Capacitor Voltage Instrument Transformer (Gas-insulated)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

220kV Current Instrument Transformer (Dry-type)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

220kV Station-service Voltage Instrument Transformer with Tap Changer (Oil-insulated)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

220kV PASS Voltage Instrument Transformer
Guangdong Sihui Instrument Transformer Works Co., Ltd.

150kV Voltage Instrument Transformer (Oil-insulated)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

132kV Combined Instrument Transformer (Gas-insulated)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

110kV GIS Three-phase Current Instrument Transformer and Voltage Instrument Transformer
Guangdong Sihui Instrument Transformer Works Co., Ltd.

110kV GIS Current Instrument Transformer
Guangdong Sihui Instrument Transformer Works Co., Ltd.

110kV and 150kV Combined Instrument Transformer (Gas-insulated)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

110–150kV Combined Instrument Transformer (Oil-insulated)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

110–150kV Station-service Voltage Instrument Transformer (Gas-insulated)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

110–150kV Voltage Instrument Transformer (Gas-insulated)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

110–150kV Capacitor Voltage Instrument Transformer (Gas-insulated)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

110–150kV Current Instrument Transformer (Gas-insulated)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

110–150kV PASS Voltage Instrument Transformer
Guangdong Sihui Instrument Transformer Works Co., Ltd.

110–150kV PASS Current Instrument Transformer
Guangdong Sihui Instrument Transformer Works Co., Ltd.

110–150kV GIS Three-phase Voltage Instrument Transformer
Guangdong Sihui Instrument Transformer Works Co., Ltd.

110–150kV GIS Three-phase Current Instrument Transformer
Guangdong Sihui Instrument Transformer Works Co., Ltd.

110-150kV GIS Three-phase Voltage Instrument Transformer with Disconnector
Guangdong Sihui Instrument Transformer Works Co., Ltd.

110-150kV GIS Voltage Instrument Transformer
Guangdong Sihui Instrument Transformer Works Co., Ltd.

66kV Combined Instrument Transformer (Oil-insulated)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

66kV Combined Instrument Transformer (Gas-insulated)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

66kV Station-service Voltage Instrument Transformer (Oil-insulated)
Guangdong Sihui Instrument Transformer Works Co., Ltd.

66kV Epoxy Resin Insulated Combined Instrument Transformer
Guangdong Sihui Instrument Transformer Works Co., Ltd.