AM5SE Protection Relay

General

AM5SE series microcomputer protection device are applicable to the user substation which the input voltage is 35kv or above. AM5 can be used to protect and control the user substation, and is be widely used to Power Industry, Water conservancy industry, Traffic Industry, Oil industry, Chemical industry,Coal Industry, Metallurgical Industry and so on.

Front Panel

LCD Display

Technical Parameter

Rated Characteristics

Characteristics / Version	AM5SE-F,AM5SE-T,AM5SE-M,AM5SE-C,AM5SE-B,AM5SE-D2,AM5SE-D3,AM5SE-TB,AM5SE-MD	AM5SE-UB, AM5SE-IS, AM5SE-FE,AM5SE-FA,AM5SE-K
Power Supply
Rated voltage	AC/DC 110V or AC/DC 220V
Range	Rated voltage × (1±20%)
Burden	≤15 VA
PT Inputs
Rated value	AC 100V or 100 √3 V	AC 380V or 220V
PT rated secondary range	0.1V～120V	0.1V ~ 456V
Accuracy	0.5S
Burden	≤0.5VA (each phase)
Voltage withstand	Continuous: 1.2 Un10s: 2 Un
Phase CT Inputs (Protection Current)
CT rated secondary range	AC 5A or 1A
Dynamic	20 × CT rated current
Accuracy	0.5S
Burden	≤0.5VA (each phase)
Thermal withstand	Continuous: 2 In1s: 40 In
Phase CT Inputs (Measurement Current)
CT rated secondary range	AC 5A or 1A
Dynamic	1.5 × CT rated current
Accuracy	0.5S
Burden	≤0.5VA (each phase)
Thermal withstand	Continuous: 1.5 In1s: 4 In
Frequency
Operating nominal voltage	AC/DC 110V or AC/DC 220V
Voltage threshold	70% of nominal voltage
Reset threshold	55% of nominal voltage
Burden	≤ 1W (each phase) (DC220V)
Digital Outputs
Make and carry	≥ 10000 operations
Making capacity	≥ 1000W, L / R = 40ms
Continuous current	≥ 5A
Short duration carry current	≥ 30A for 200ms
Breaking capacity	≥ 30W, L/R = 40ms

Protection characteristics

Characteristics	Accuracy	Resolution	Disengaging ratio
Voltage	±3%	0.001V	0.95 and 1.05
Current	±3%	0.001A	0.95 and 1.05
Frequency	±0.02Hz	0.001Hz
Operation delay|t>(DT)	40ms or ±2% setting value	0.001s	-
Operation delay|t>(IDMT)	40ms or ±5% setting value	0.001s	-

Environmental characteristics

During operation	10℃～＋55℃, temperature; 5%～95%, humidity
Storage	-25℃～＋70℃
Altitude	≤ 2000m
Enclosure	IP20 (local panel)

Product safety

Insulation	Insulation resistance >100MΩat 500Vdc
High voltages withstand	2kV rms AC, 1 min:between all case terminals connected together, and the case earth/ground;2 kV rms AC, 1 min:between all terminals of independent circuits
Impulse voltage	±5kV (1.2/50μs, 0.5J)

Electromagnetic Compatibility Characteristics

Characteristics	Standard	Level/Class
Radiated emission	IEC-60255-26:2023——5.1	A
Conducted emission	IEC-60255-26:2023——5.2	A
Radiated radio frequency fields	IEC-60255-26:2023	A
Electrostatic discharge	IEC-60255-26:2023——6.1	B
Conducted radio frequency disturbance	IEC-60255-26:2023——6.2-6.5	A
Fast transient bursts	IEC-60255-26:2023——6.2-6.5	B
Slow damped oscillatory waves	IEC-60255-26:2023——6.2-6.4	B
Surges	IEC-60255-26:2023——6.2-6.4	B
Voltage dips and short interruptions test(AC or DC)	IEC-60255-26:2023——6.2	A/C 1
Magnetic field at power frequency	IEC-60255-26:2023——6.1	B

Function

Installation

Typical Connection