삼화디에스피(주)

DSP-AOM-N Digital Motor Protection relay/ A Seies/METER, ON-OFF -RUN Control

Digital Motor Protection relay/ A Seies/METER, ON-OFF -RUN Control

Main Feature

Panel Flush Mounting Type
Access restricted to authorized operator : Password
To be able to control motor and to indicate operation state through multi-function meter
- Convenient selection for control position/press 1sec : Logic key/RCS↔MCC(Meter)
- Operating state indication : Run-Stop,Load factor,Trip,Test
- Convenient reset for trip event : “RESET” key
- Load factor indication by actual value
To show a trip cause and operational information in a character and/or a number : 5 Digit Window
To indicate a necessasary information in every 3 sec: current(L1,L2,L3),earth current, load factor
Possible to use various rated ZCT to sense a zero phase current for GF protection
- DSP-AOM-N-A : 200mA/1.5mA
- DSP-AOM-N-V : 200mA/100mV
- Optional type : to use embedded ZCT(not available for external CT application)
to check and/or to change preset value of each mode during the operation
- Possible to check :press "SET" key
- Possible to check and to change : firstly make "oPSEt" mode "on",then press "SET" key
Highly sensitive level and wide range for ground fault protection : 50mA∼2A/Zero-phase sequence current
Alarm for disconnection with ZCT
Various way to reset after trip: Manual,Electrical or Automatic /to response flexibly for applied sequence system
To keep a stable operation under frequency variation from Inverter : 30Hz∼300Hz
Self-diagonostic test by one touch for "CLR" key
History,Latest 8 trip events

Technical Specification

Current rating
- 10 Type : 0.5A∼10A / 0.5A~6A with external CT
- 60 Type : 5A ∼70A
- External CT : 1A ∼ 1200A
Operation Time
- Starting trip delay time(dt) : 1 ~ 300sec /Definite T-I
- Over current trip delay time(ot) : 1~60sec/Definite T-I
  - definite T-I:1~60sec
  - Inverse:1~30Class /800% to "oc": 10 type/0.5~6A,70 type:5A~40A
- Under current trip delay time : 1~30sec
- Phase loss trip delay time(PLc) : 1~5sec
- Reverse phase trip delay time : within 0.5sec
- Ground fault trip delay time : Edt/1~25sec,Eot/1~30sec
- current unbalance trip delay time : 8sec
- locked rotor trip delay time : dt+0.1sec
Allowable tollerance
- Current : C≤2A : 0.2A, C>2A : ±5%
- Time : t≤2sec : ±0.2sec, t>2sec : ±10%
- Control power : 24VDC (Optional Type)
Trip output
- Main : 95-96-98 : 1c(1-SPDT), 250VAC/3A, 30VDC/1A, Resistive
- Logic/C-R-M : 1a(1-SPST)*2,250VAC/3A,30VDC/1A,Resistive
Application environment
- Operation : -25℃ ~ +70℃
- Storage : -40℃ ~ +80℃
- Relative humidity : 30∼85%, non-condensing
Stable operation under frequency variation from Inverter : 30Hz ∼ 400Hz ,avg ±5%
Screw Torque : Max 0.6N.m
Insulation Resistence / IEC-60255-5 : circuit-case, 10Mohm , 500VDC
High Voltage Withstand Test : IEC-60255-5
- circuit-case : AC2000V, 60Hz, 1min
- contact-contact : AC1000V, 60Hz, 1min
Lightning Impulse Voltage Withstand Test : IEC-60255-5
- Circuit-Ground, Circuit-Circuit : 1.2/50uS, 5KV
- Control Circuits : 1.2/50uS, 5KV
1MHz Burst Immunity Test / IEC 61000-4-18 : 2.5KV, Positive / Negative under 2sec
Electrostatic Discharge : IEC-61000-4-2
- Air : Level 3, 8KV
- Contact : Level 13, 6KV
Radiated Electromagnetic Field Disturbance / IEC-61000-4-3 : Level 3, 10V/m
Electric Fast Transient Burst : IEC-61000-4-4
- power,relay output : Level 4, 4KV
Surge Immunity test : IEC-61000-4-5
- relay output : 1.2×50uS, 2KV(0°, 90°, 180°, 270°)
Conducted Disturbence Test / IEC-61000-4-6 : 10V, Level 3
Control Voltage : 100~240VAC/Standard, 24VDC/Optional
Power consumption : 4W Max