REL316*4 HESG448750M1 HESP311651/HE501746-10120/1 A1B0U1K128H-E1I9 Numerical Line Protection, China REL316*4 HESG448750M1 HESP311651/HE501746-10120/1 A1B0U1K128H-E1I9 Numerical Line Protection Manufacturers, Suppliers, Factory

Overview

Place of Origin:	Sweden
Brand Name:	ABB
Model Number:	REL316*4 HESG448750M1 HESP311651/HE501746-10120/1 A1B0U1K128H-E1I9
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Specifications

Parameter	Value
Model	REL316*4 HESG448750M1 HESP311651/HE501746-10120/1 A1B0U1K128H-E1I9
Product Type	Protection Relay System
Dimensions	27.2 x 31 x 27.6 cm
Weight	12.48 kg
Analog Inputs (Max)	Up to 9 inputs (voltage/current, 4 mm² terminals)
Rated Frequency	50 Hz / 60 Hz
Rated Current	IN = 1 A / 2 A / 5 A
Current Thermal Rating (Continuous)	4 × IN
Current Thermal Rating (10 s)	30 × IN
Current Thermal Rating (1 s)	100 × IN
Dynamic Current Rating (Peak)	250 × IN
Rated Voltage	100 V / 200 V
Voltage Thermal Rating (Continuous)	1.3 × UN
Voltage Thermal Rating (10 s)	2 × UN
Relay Contacts	2 relays per I/O unit (316DB61 / 316DB62), 2 NO contacts each
Max Operating Voltage	300 V AC/DC
Continuous Contact Rating	5 A
Make & Carry (0.5 s)	30 A
Surge Current (30 ms)	250 A
Breaking Capacity (<50 V DC)	1.5 A
Breaking Capacity (<120 V DC)	0.3 A
Breaking Capacity (<250 V DC)	0.1 A
Optocouplers	8 / 4 / 14 (depending on I/O unit type)
Input Voltage Range	18–36 V DC / 36–75 V DC / 82–312 V DC / 175–312 V DC
Threshold Voltage	10–17 V / 20–34 V / 40–65 V / 140–175 V DC
Max Input Current	<12 mA
Operating Time	1 ms
Operating Temperature	-10 °C to +55 °C
Storage Temperature	-40 °C to +85 °C
Humidity	93% at 40 °C (4 days)
Seismic Test	5 g, 30 s, 1–33 Hz
Insulation Resistance	>100 MΩ @ 500 V DC
Dielectric Test	2 kV, 50 Hz, 1 min
Surge Voltage Test	5 kV (1.2/50 µs)
ESD Immunity	6/8 kV (10 shots, Class 3)
Fast Transient Immunity	2/4 kV (Class 4)
RF Interference Test	0.15–80 MHz; 10 V (Class 3)
Emission Class	Class A
Mounting Type	Semi-flush, rear terminals / 19" rack (6U)
Protection Class	IP50 (IP20 with MVB PC cards), IPXXB terminals

Description

The ABB REL316*4 HESG448750M1 HESP311651/HE501746-10120/1 A1B0U1K128H-E1I9 is a high-performance digital line protection device designed specifically for high-voltage and ultra-high-voltage transmission lines, providing precise distance protection, overcurrent protection, and reclosing functions. This device employs advanced numerical calculation algorithms to ensure high selectivity and sensitivity under complex power grid faults. Its modular design and industrial-grade reliability make it an ideal choice for substation automation and upgrades, significantly ensuring the safe and stable operation of the power grid.

Applications

Chemical Plants: Protect high-voltage power lines and prevent production line power outages due to short circuits.

Steel Plants: Adapt to complex operating conditions caused by impact loads such as electric arc furnaces.

Paper Mills: Ensure power quality for large motors and automated production lines.

Power Plants: Serve as backup/primary protection for plant auxiliary power or transmission lines.

Cement Plants: Ensure stable operation in harsh industrial environments with high dust and high vibration.

Distance Protection Features

Overcurrent or underimpedance starters with polygonal characteristic

Five distance zones with polygonal impedance characteristic for forwards and reverse measurement

Definite time-overcurrent back-up protection (short-zone protection)

VT supervision

Power swing blocking

System logic

- switch-onto-fault

- overreach zone

Earth fault protection

Sensitive earth fault protection for ungrounded systems and systems with Petersen coils

Directional comparison function for detecting high-resistance faults in neutral earthing systems

Inverse time overcurrent function with four characteristics

FAQ

Q: What is the REL316*4 HESG448750M1 HESP311651/HE501746-10120/1 A1B0U1K128H-E1I9?
A: It is a Numerical Line Protection (NLP) device.

Q: Can the main module REL316*4 HESG448750M1 HESP311651/HE501746-10120/1 A1B0U1K128H-E1I9 be replaced separately if it fails?
A: Yes. This series adopts a modular design; replacing the hardware with the same model and importing the original parameter settings will restore functionality.

Q: Does the REL316*4 HESG448750M1 HESP311651/HE501746-10120/1 A1B0U1K128H-E1I9 have advantages for high-resistance grounding faults in factories?
A: Yes. It has accurate zero-sequence admittance calculation capabilities, effectively distinguishing between permanent and intermittent grounding faults.

Q: Are there any recommended alternatives for the REL316*4 HESG448750M1 HESP311651/HE501746-10120/1 A1B0U1K128H-E1I9 model?
A: The REL316 is a classic model. Currently, ABB is promoting the Relion 600 series (such as the REF615) for intelligent upgrades and replacements.

Q: What should I do if a "Unit Fail" alarm occurs in the REL316*4 HESG448750M1 HESP311651/HE501746-10120/1 A1B0U1K128H-E1I9 during operation?
A: This usually indicates that the hardware self-test has failed. Please record the alarm code and contact a technician to check if the power board or processing unit is aging.