general outline Describe
With the development of electrical automation technology and computer technology in the power system, higher requirements have been put forward for intelligent devices in the power system. As an important intelligent device in the power system, the relay protection device will no longer have a single protection function, but should be a protection device that integrates measurement, metering, control, and communication. The HL-800A series microcomputer protection and measurement device is a high-performance protection and measurement device developed to meet the needs of the power system development and market. It integrates measurement, metering, control, and communication. This series of microcomputer protection and measurement devices adopts advanced 32-bit embedded microprocessors, fully isolated, high-speed and safe fieldbus technology, and user-friendly human-machine interfaces. Its performance and technical indicators are at the forefront of China. Mainly applicable to power systems and other industry users with voltage levels of 110KV and below.

particular drop
The HL-800A series microcomputer protection and measurement device has the following characteristics:
1. Adopting advanced 32-bit embedded ARM processors
2. Humanized human-machine interface, easy and intuitive operation
3. SOE and self-test report with power-off hold
4. Complete software and hardware self checking, redundant design of secondary watchdog software and hardware, strong anti-interference performance
5. Fully sealed embedded 5U standard chassis design, large screen with full Chinese character display, can be assembled or directly installed on the switchgear
6. Safe and reliable high-speed fieldbus technology, supporting dual networks, multiple communication interfaces, and multiple communication protocols
7. DCS measurement interface (4-20mA analog output)
8. The device is equipped with a clock synchronization interface to ensure that the device's clock is synchronized with the system

Specification

rated data
DC power supply: 220V ± 20% or 110V ± 20%
AC power supply: 85V~265V
AC voltage: 100/ V，100V
AC current: 5A or 1A
Frequency: 50Hz

Power consumption
DC circuit: ≤ 5W
AC voltage circuit: ＜ 0.5VA/phase (at rated 220V)
AC current circuit: ＜ 0.5VA/phase (rated at 5A)

＜ 0.1VA/phase (rated at 1A)

work environment

Environmental temperature: -10 ℃ to+55 ℃ to ensure normal operation

Relative humidity: 5～95%

Atmospheric pressure: 86～106KPa3.4
thermal stability
2 times the rated current for continuous operation
10 times the rated current can run continuously for 10 seconds

40 times the rated current can run continuously for 1 second
DCS measurement interface output
Output range: 4～20mA

Output accuracy: Level 0.5
Contact capacity
Jumping and closing outlet (normally open contact): 5A， DC
220V (suction)

Signal outlet (normally open contact): 5A, DC 220V (pull in)
Switch
Quantity input:
Empty contact input, conducting current<10mA
measurement accuracy
Voltage and current: Level 0.5
Frequency: 0.02Hz

P Q、COSΦ:
Level 1
Remote signaling resolution:< 2ms

Electricity integration accuracy: Level 2
GPS timing accuracy:<1ms
communication
RS485: Communication rate ranging from 9.6 to 115.2
Kbps adjustable, supports dual network, communication medium supports shielded twisted pair.

CAN: The communication speed can reach up to 1Mbps, supporting dual networks, and the communication medium supports shielded twisted pair cables.
anti-jamming performance
Capable of withstanding the severe level IV electrostatic discharge test specified in GB/T14598.14-1998 (idt IEC255-22-2) standard.
Capable of withstanding the harsh level III electromagnetic field interference test specified in GB/T14598.9-1995 (idt IEC255-22-3) standard.
Capable of withstanding 1MHz pulse group interference test of severity level III specified in GB/T14598.13-1998 (idt IEC255-22-1) standard.
Can withstand the rapid transient interference test of severity level IV specified in GB/T14598.10-1996 (idt IEC255-22-4) standard.
Mechanical properties
Vibration
The device should be able to withstand the vibration durability test with a severity level of 1 as specified in GB/T11287.

The device should be able to withstand the vibration response capability test with a severity level of 1 as specified in GB/T11287.
Impact

The device should be able to withstand the impact durability test with a severity level of 1 as specified in GB/T14537.
The device should be able to withstand the impact response capability test with a severity level of 1 as specified in GB/T14537.
Collision
The device should be able to withstand a collision test with a severity level of 1 as specified in GB/T14537.
Moisture and heat resistance performance
Capable of withstanding the damp heat test specified in Chapter 21 of GB7261
Mainly following standards
GB/T14598.13-1998 (idt IEC255-22-1) Electrical interference test for measuring relays and protection devices Part 1: 1MHz pulse group interference test
GB/T14598.14-1998 (idt IEC255-22-2) Electrical interference test for measuring relays and protective devices

Article 2: Electrostatic Discharge Test
GB/T14598.9-1995 (idt IEC255-22-3) Electrical interference test for measuring relays and protective devices

Article 3: Radiated Electromagnetic Field Interference Test
GB/T14598.10-1996 (idt IEC255-22-4) Electrical interference test for measuring relays and protective devices
Article 4: Fast Transient Interference Test
Other indicators meet the requirements of DL478-92 "General Technical Conditions for Static Relay Protection and Safety Automatic Equipment"

Basic configuration
The HL-830A segmented backup automatic switching device (hereinafter referred to as the device) is suitable for backup power automatic switching and measurement and control of busbar segmented switches. The system schematic diagram is as follows. During normal operation, the two busbars run separately, with each main transformer carrying one busbar.
Protection function

1. Four ways of segmented self projection function
2. PT disconnection detection of two busbars

3. Control circuit disconnection detection for three switches
Measurement and control function
1. 14 channel remote signal input acquisition, device remote signal displacement, accident remote signal
2. 2-channel pulse input