————————Shenzhen Changxin Automation Equipment Co Ltd -————————

Products that have been released are welcome for consultation. Due to the wide variety of models, we were unable to upload physical images one by one!

Siemens 7UT86 is a differential relay used for the protection of three winding transformers, which is part of the modular protection system SIPROTEC series. It is mainly used for differential protection of three winding transformers (high voltage side, medium voltage side, and low voltage side), and provides various additional functions such as short circuit protection, overcurrent protection, excitation inrush current suppression, zero sequence protection, and overload protection.

Siemens 7UT86 Three winding transformer protection differential relay

Current measurement range: Supports 20 mA or 10 V (fast mode) and 4 mA (standard mode).
Voltage measurement range: The auxiliary voltage range is 60 V to 250 V DC or 100 V to 230 V AC.
Equipment size: Width of 1/3 x 19 inches, suitable for standard 19 inch rack installation.

Main features:
Differential protection function: 7UT86 provides standard differential protection function and supports additional three-phase current measurement points, suitable for differential protection function of automatic transformer units.
Modular design: 7UT86 adopts modular design, which can flexibly expand hardware configuration and support up to seven measurement points, suitable for different types of transformer protection requirements.
High precision and fast response: Based on digital relay technology, 7UT86 has high precision and fast response capabilities, which can effectively detect internal or external faults.
Remote communication and monitoring: 7UT86 supports IEC 61850 protocol and can be integrated with SCADA or DCS systems to achieve remote monitoring and control.
Scope of application: Widely used in high-voltage/ultra high voltage substations, industrial power grids, and renewable energy fields such as wind power and photovoltaic systems.

Why do many of our products have more competitive prices?

(1) Source procurement to reduce price differences in intermediate links.

(2) Stable channels and more secure supply of goods.

Delivery time issue

(1) Inventory products can be arranged for shipment on the same day after signing the contract for payment.

(2) Order products according to the quoted delivery date.

Shenzhen Changxin Co., Ltd. adheres to the corporate philosophy of “spare parts supply chain, enhancing the value of spare parts”.

Our advantage :

Brand new original, with a one-year warranty provided after sales! All of our products have undergone strict testing, and we welcome inquiries and acquisitions. As long as you have sincerity.

Our company will provide you with competitive prices compared to our peers, and we will take orders together!

Changxin’s internal environment:

The company has a registered capital of tens of millions, a five-star office environment, and hundreds of employees. Changxin focuses on the four major system fields of DCS, PLC, robotics/large servo, and mainly produces various modules/cards, controllers, touch screens, and servo drives.

contact information

☆☆E-mail:lanlan@szcxdcs.com☆☆

☆☆Phone/WHatsApp:+86 15359298293☆☆

We handle every order with the utmost enthusiasm and dedication.

Please raise your question! Welcome to consult!

Shenzhen Changxin has thousands of excellent manufacturers, with millions of units in stock and sufficient supply, achieving faster customer support and response.
Thank you for your trust. We have inventory of industrial control products worth over $1526000. Hope we can help you solve this problem!!!

More models：

Siemens 7UT86 Three winding transformer protection differential relay