1
2
1
Digital Monitor
2
Embended Current Transformer
มี CT ในตัววัดค่ากระแสไฟฟ้าได้
DSP-AOL-10Z7
จอในตัว 10Z7 (0.5~10A), External CT 1200A,
ZCT 200mA/1.5mA
Control power 85~260VAC, 50/60Hz
Digital Over current Motor Protection Relay/Panel Flush Mounting Type
*Converter + Meter with RUN(ON)/STOP(OFF) SW, 5 digit window
*Convenient selection for control position : Logic key/RCS↔MCC(Meter)
-MCC : motor start/stop is executed by RUN-STOP key
-RCS : motor start/stop is executed by external auto device
*4E Class Protection Level
-Over/Under Current,Phase Loss,Reverse Phase,
-Current Unbalance,Locked Rotor,Ground Fault
*T-I characteristic to protect over current:definite or inverse
*Basic type:matched with external ZCT, Optional type:ZCT Embeded/External CT type is not available
*Stable operation in various frequency environment
*Correct indication based on RMS value
*Wide application for ZCT rating to sense zero phase sequence current
*Alarm for ZCT disconnection with converter in motor stop state
*Converter + Meter with RUN(ON)/STOP(OFF) SW, 5 digit window
*Convenient selection for control position : Logic key/RCS↔MCC(Meter)
-MCC : motor start/stop is executed by RUN-STOP key
-RCS : motor start/stop is executed by external auto device
*4E Class Protection Level
-Over/Under Current,Phase Loss,Reverse Phase,
-Current Unbalance,Locked Rotor,Ground Fault
*T-I characteristic to protect over current:definite or inverse
*Basic type:matched with external ZCT, Optional type:ZCT Embeded/External CT type is not available
*Stable operation in various frequency environment
*Correct indication based on RMS value
*Wide application for ZCT rating to sense zero phase sequence current
*Alarm for ZCT disconnection with converter in motor stop state
Note : Protection relay should be installed in the secondary part of Inverter.
document download
Manual > DSP- A series-v20150517
Information
Efficient Operation
- Convenient seperated presetting menu to be committed with field working condition
- Main menu :to do main job
- Cab menu(calibration menu):adjustable for indicating value within narrow range(+,- 50%)/this menu is appeared when “SET” key is pressed for 5 sec or more and disappeared right after pressing again
- To indicate a necessary information in every 3 sec
- Basic factor circulating indication:3 phase current,GR/Zero phase current,load factor
- Pssible to fix one of circulated factor or to release:one touch by “CLR” key
- Possible to check preset value during operation:by pressing “SET” key /to show mode and preset value alternatively/press “CLR” key to see next mode/return to normal operating state without touching a key for 10 sec or press both “SET” and “CLR” key/not possible to preset value
- To show load factor(actual/setting)/65%~100%
- Alarm before actual trip caused by OC
- To secure a safety: Password input for setting a data
- To call initialized factory setting value:pressing “SET” key for 3 sec or more after power-on.
- To keep a stable operation under various frequency environment:30 Hz~300Hz
Higher Preceision Function
- Correct current value based on True RMS
- To act as actual complexed meter:3 phase current,zero phase current/GR
- To cover various current range:OC,GR
- 10 Type:0.5A ~10A
- 70 Type :5A ~ 70A
- With external CT:1A~1200A
- GR:50mA~2A
- Main /1c(SPDT):95-96-98
- AUX :1c(SPDT):05-06-08
- Self-diagonostics:main trip output is tripped after counting down o-time in definite T-I
Specification
| ITEM | Description | remarks |
|---|---|---|
| Protection | ||
| Over Current | d-time:1~300 sec, o-time:1~60 sec/definite,5~30 class/inverse |
Trip is done if the current greater than presetting value is kept over preset O-time |
| Under Current | 0.5~30 sec/definite | Trip is done if the load current smaller than presetting value is kept over preset u-time |
| Unbalance | 8 sec | * Trip is done if the presetting current unbalance rate is kept over 8 sec * rate=[(max. curr.- min. curr.)/max. curr.]* 100 [100%] |
| Locked Rotor | d-time + o.1 sec | Trip is done if 300% current greater than preset “oc” is kept for d-time plus 0.1 sec |
| Ground Fault | Edt:1~25 sec, Eot:1~30 sec |
Trip is done if a current greater than presetting zero phase current is kept for Eot(earth operating time |
| Phase Loss | 1~5 sec | If phase loss is happened ,auto reset is not possible,but manual reset |
| Reverse Phase |
0.5 sec | If reverse phase is happened ,auto reset is not possible,but manual reset |
| Indication | ||
| 3 phase current |
Current of each phase,L1,L2,L3 |
Indicated in every 3 sec |
| Ground fault Current |
Zero phase sequence current |
Indicated after showing L1,L2,L3 with every 3 sec interval |
| Pre-alarm | 3 LED(L1,L2,L3) is flickering together |
Alarmed if % rate for actual operating value to preset value is greater than preset % rate for 3 sec |
DWG
AOL dwg diagram signle line
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