Instrument Transformer
Instrument transformers are installed in AC circuits to convert large high-voltage currents into small low-voltage currents to conduct measurements. There are mainly two types of instrument transformers: voltage transformers (VTs) and current transformers (CTs). These instrument transformers are used in circuits of voltmeters, ammeters, electricity meters, relays, etc.
Features
Nissin Electric's Instrument Transformers have gone through over 60 years of technological progress through the continual innovation in design, production, and quality assurance processes. In both Japan and countries around the world, our Instrumental Transformers have contributed to stable power supply by providing accurate output for protection relays and other measuring equipment in high-voltage power systems. Nissin Electric will continue our effort towards technological innovation in order to provide safer, more reliable Instrument Transformers and take part in the supplying of stable electricity around the world.
Instrument transformers are used to conduct measurements and protect circuits. Thus, they must ensure high performance and reliability. We supply high-performance and high-quality products in and outside Japan by taking full advantage of our proprietary power capacitor technology and insulation oil seal technology as well as the SF6 (sulfur hexafluoride) gas insulation technology that has been refined over many years of operation.
- Current Transformer
Completely oil-filled and hermetically sealed construction with metallic bellow type oil volume adjusting device at the top. - Capacitor Voltage Transformer
Oil-filled and hermetically sealed construction. The capacitor unit will be provided with metallic bellow type oil volume adjusting device at the top. - Voltage Transformer
Completly oil-filled and hermetically sealed construction with metallic bellow type oil volume adjusting device at the top. - Gas Insulated Voltage Transformer
Gas Insulated Voltage Transformers (Gas-VTs) are disigned to be light, compact and furthermore can be connected to GISs in horizontal, vertical or inverted position.
Rating
Current Transformer
| Voltage Class | Up to 800kV |
|---|---|
| Voltage | 23kV～765kV |
| Primary Current | Up to 5000A depending on the voltage class |
| Application | Protection and measuring |
Capacitor Voltage Transformer
| Voltage Class | Up to 800kV |
|---|---|
| Voltage | 72.5kV～765kV |
| Application | Protection and measuring |
Voltage Transformer
| Voltage | 23kV～120kV |
|---|---|
| Application | Protection and measuring |
Gas Insulated Voltage Transformer
| Voltage | 72.5kV～765kV |
|---|---|
| Application | Protection and measuring |