Water machine intelligent protection device

XSJ-1330 Water Machine Intelligent Protection Device (Hydraulic Generator Intelligent Protection Device), an economical intelligent protection device that integrates measurement, communication, diagnosis, control, and protection. It achieves accident shutdown protection and emergency shutdown protection for hydraulic generators and their supporting equipment.

The device is divided into two parts: microcomputer protection and hard circuit protection. The functions of microcomputer protection and hard circuit protection are controlled through interlocking. The operating protection program will achieve automatic protection when the input meets the design logic requirements, or traditional water machine hard circuit protection can be achieved through printed circuit methods.

XSJ-1330 Water Machine Intelligent Protection Device

1) Multi-functionalReplace conventional relays and related measuring instruments, saving a lot of installation space and control cables, and providing high automation for control protection.

2) High performance:Equipped with a 32-bit ARM chip, featuring advanced core architecture, high-speed computing capabilities, and real-time signal processing.

3) Protocol communication:Supports RS485 port communication with monitoring software using modbus7000 protocol, making operations like setting values, querying data, and control management convenient.

4) Rich interfaces:Configured with 2 RS485 ports and 1 RS232 port, 2 Ethernet ports; as well as 36 input channels and 10 output channels.

5) Simple structure:2U structure, compatible with various switch cabinets; easy to install, maintain, operate, and debug.

6) Reliability design:Uses industrial-grade components, designed for a wide operating temperature range (-10℃~55℃); includes watchdog functionality for self-recovery; modular design ensures more stable action signal output.

7) Command time calibration:Issues calibration commands to automatically calibrate the clock, ensuring synchronization with the computer.

8) Other features:Low power consumption, small size, etc.

9) Event recording:Real-time upload of events to monitoring software, facilitating fault analysis and equipment diagnosis.

1. Technical Parameters 

1) Basic Functions

Incoming measurement collection: 36 channels of incoming status collection.

Outgoing control: 10 channels of outgoing protection control.

Alarm function: High bearing temperature, low oil pressure in the governor pressure tank, low oil level in the governor pressure tank, high temperature alarm for stator core and winding.

2) Advanced Functions

Emergency shutdown: In case of unit overspeed, low oil pressure in the governor accident, low oil level in the governor accident, shear pin breakage, emergency shutdown button controls the shutdown action in emergencies to protect the water machine.

Accident shutdown: In case of high bearing temperature, high temperature of stator core and winding, interruption of main shaft seal water, interruption of bearing cooling water, serious governor failure, (bulb) interruption of oil flow in unit bearings, (bulb) low oil level in unit combined bearings, (bulb) high water level in unit bulb head, (bulb) low oil level in unit high-level oil tank, (water pump turbine) high temperature of main shaft seal, (water pump turbine) high temperature of leakage ring, low position of inlet quick gate, interruption of water supply to water-lubricated guide bearings, electrical accidents, accident shutdown button controls the shutdown action in case of accidents to protect the water machine.

3) Fault Diagnosis

High bearing temperature alarm: Alarm display when high bearing temperature signal is detected.

Low oil pressure alarm in governor pressure tank: Alarm display when low oil pressure signal in governor pressure tank is detected.

Low oil level alarm in governor pressure tank: Alarm display when low oil level signal in governor pressure tank is detected.

High temperature alarm for stator core and winding: Alarm display when high temperature signal for stator core and winding is detected.

4) Communication Functions

Device supports RS-485 communication: 2 485 and 1 232 interfaces, one 485 port is reserved, the other 485 port uses custom Modbus 7000 protocol communication; 232 port is for debugging.

5) Others

Remote monitoring

Upload events

Set fixed values

Output drive

Time calibration, reset (the above functions need to be used with monitoring software)