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I. Overview

STS 311L digital line protection and control device is a distance protection, zero sequence protection and threephase reclosing as the basic configuration of the complete line protection device. The protection device is basically configured as three CPU plug-in, composed of 32-bit microprocessor, plug-in configuration of large-capacity RAM and Flash Memory, with strong data processing, logic operations and information storage capabilities: one for current protection and Reclosing functional unit, the second for the distance protection unit the third for the communication unit, the internal use of CAN bus communication; display plug-in by another chip chip does not constitute a common man-machine interface unit. CPU plug-ins are independent of each other, no dependencies. Various protection functions and automation functions are implemented by software. Protection of logical relations in line with the "four reunification" design principles.

II. Main function

Three - stage, three - phase grounding distance protection. Four - stage zero - sequence direction protection. Three-phase reclosing. Two - stage current protection. The circuit breaker fails to start. Low-cycle load shedding, low-voltage solution, oscillation solution. Double line has been fast. Fault recorder. GPS on time. Including operating circuit and switching circuit

I. Overview

STB 321 digital bus protection device is a new generation of microcomputer bus protection device based on high performance hardware platform developed by Shanghai Tianzheng Electric Power Co., Ltd. tomorrow. The device combines the theoretical research results and field operation experience in the field of voltage level bus protection for many years, and adopts reliable, fast, sensitive and accurate new protection of busbar protection, so that the technical indicators of the device are in full accord with the national standard, Ministerial standards and electromagnetic compatibility, insulation pressure, mechanical properties and other relevant standards, the overall technical performance has reached the advanced level at home and abroad. The device has the principle of advanced, advanced technology, full-featured, reliable performance, user-friendly, easy to use, anti-interference ability, and so on, for 500KV and below voltage level, including single bus, single mother, double bus, double mother Segmentation and 211 wiring, including the main wiring, the largest main wiring size of 25 intervals.

II. Main function

Bus differential protection, bus charging protection.

I. Overview

STS 368T digital transformer protection device is suitable for 110kV and below the voltage level of power transformers. Can be completed three turns transformer bridge connection of the four sides of the differential protection, a variety of protection functions are implemented by the software. This series of digital transformerprotection device protection configuration and the protection of the time limit of the trip logic can be programmed online.

I. Overview

STS 369T digital transformer backup protection device for 110kV and below the voltage level of power transformers. Can complete the transformer backup protection function, a variety of protection functions are implemented by the software. The protection configuration of the STS369T digital transformer backup protection device and the trip logic for each protection time can be programmed online.

II. Main function

Composite voltage blocking (direction) overcurrent protection.

Composite voltage blocking overcurrent protection.

Zero sequence (direction) overcurrent protection.

Zero sequence overcurrent protection, gap zero sequence protection.

I. Overview

STS 361B digital standby power supply self-voting device to achieve the use of graphical logic programmable way, can be flexible to achieve a variety of options for a variety of voltage levels of standby power automatically put into control, while providing two Stream protection and acceleration protection.

II. Main function

Charge protection.

A variety of typical standby power supply program.

Graphical logic Programmable implementation of special programs.

I. Overview

STS 360G series of digital generator protection device using high-performance chip to support the common hardware platform, easy maintenance; full Ethernet communication, data transmission fast and reliable; completely Chinese finished display technology, simple operation. STS 361G digital generator protection device is a new generation of microcomputer protection products developed on the basis of advanced experience and technology of similar products at home and abroad. It is mainly used as the main protection of internal phase short circuit, which is suitable for the capacity of 50MW and below Of fire and hydroelectric generator protection.

II. Main function

Generator longitudinal differential protection.

Overvoltage protection. In the case of

Stator ground protection.

Reverse power protection. In the case of

Low frequency protection. In the case of

Non-electric power

I. Overview

STS 360G series of digital generator protection device using high-performance chip to support the common hardware platform, easy maintenance; full Ethernet communication, data transmission fast and reliable; completely Chinese finished display technology, simple operation. STS362G digital generator backup protection device is a new generation of microcomputer-based protection products developed on the basis of advanced experience and technology of similar products at home and abroad. It is a backup protection for external short-circuit of generators. It is suitable for 50MW and The following firepower and hydroelectric generator protection.

II. Main function

Cross-protection.

Composite voltage lockout overcurrent protection (memory).

Generator loss of magnetic protection.

Overload protection.

Rotor point, two points to ground protection.

Negative sequence overcurrent protection.

I. Overview

STS 362L digital line protection device for 66KV and below neutral point indirect grounding system, protection function configuration: three-phase interphase distance protection; three-stage grounding distance protection; three-phase phase-to-phase overcurrent protection; Zero sequence overcurrent protection; low cycle load shedding, low pressure relief and three phase reclosing protection.

I. Overview

STS 363L digital optical fiber current differential protection device, is based on optical fiber as a digital transmission channel current differential protection, but also equipped with current protection and three-phase reclosing complete sets of line protection device. It is suitable for lines with voltages below 110kV. STS363L digital optical fiber differential protection and control device set protection, remote, telemetry, remote control four-in-one design, the device uses a high-performance 32-bit processor constitute a common hardware platform; simple operation, easy maintenance; all Ethernet communication ; Can be installed or installed directly on the floor and switch cabinet.

I. Overview

STS 365T digital transformer protection device is based on the current and voltage protection and non-power protection as the basic configuration of the complete set of transformer protection device for 66KV and below the voltage level of the substation or power plant transformer, to provide two-phase phase current protection Load, accelerated protection, zero sequence current protection, PT disconnection automatic detection, transformer non-power protection, while the completion of measurement and control functions. Can be installed in the switchgear in situ, can also be installed in the control room panel.

I. Overview

STS 361R Digital integrated monitoring and control device (hereinafter referred to as device) is a high-performance microprocessor-based monitoring and control devices, set telemetry, remote, remote and remote control functions in one, suitable for a variety of voltage levels in the substation common measurement Quantity and control of the collection and control, is STS 360 substation automation system supporting products.

I. Overview

STS 360R series of digital monitoring and control device (hereinafter referred to as the device) is a high-performance microprocessors constitute a unit of measurement and control devices, remote sensing, remote, remote control and remote control functions in one, suitable for a variety of voltage levels Measurement and control of the amount of collection and control, is STS360 substation automation system supporting products