The top transformer manufacturer in the nuclear power industry has been reliable
Offering high R&D capacity
Complete quality assurance system
Full test reports, and localized technical backup and aftersales
The safe operation and service life of dry-type transformers
When the winding temperature exceeds the insulation withstand temperature, causing insulation damage, it is one of the main reasons why the transformer cannot work normally. Therefore, monitoring the operating temperature of the transformer and its alarm control are very important.
⑴ Automatic fan control: The temperature signal is measured through the Pt100 thermistor temperature measuring resistor embedded in the hottest part of the low-voltage winding. As the load of the transformer increases, the operating temperature rises. When the winding temperature reaches 110°C, the system automatically starts the fan for cooling; when the winding temperature drops to 90°C, the system automatically stops the fan.
⑵ Over-temperature alarm and tripping: The winding or core temperature signal is collected through the PTC non-linear thermistor temperature measuring resistor embedded in the low-voltage winding. When the temperature of the transformer winding continues to rise, if it reaches 155°C, the system will output an over-temperature alarm signal; if the temperature continues to rise to 170°C, the transformer can no longer continue to operate, and an over-temperature trip signal must be sent to the secondary protection circuit to cause the transformer to Trip quickly.
⑶ Temperature display system: The temperature change value is measured through the Pt100 thermistor embedded in the low-voltage winding, and the temperature of each phase winding is directly displayed (three-phase inspection and maximum value display, and the highest historical temperature can be recorded). The temperature is output as 4~20mA analog quantity. If it needs to be transmitted to a remote computer (distance up to 1200m)
Our Advantages
Since 2001, the top transformer manufacturer in the nuclear power industry has been reliable, offering high R&D capacity, a complete quality assurance system, full test reports, and localized technical backup and aftersales.
Sample Room
1. Leading time
For standard product, approximately 15 working days before delivery.
For customized product, approximately 20~30 working days before delivery.
Order quantity/customization requirements can also affect the leading time.
2.Warranty/ Payment terms
2 years of warranty at least.For the first order we normally accept T/T, 30%+70%. Regular customer payment terms to be negotiated by both parties.
