The asymmetry relais AK 9840 of the VARIMETER series monitors voltage asymmetry, under voltage, phase failure as well as incorrect phase sequence at three-phase mains. The measurement is very simple and can be carried out without much wiring effort, as no separate auxiliary voltage is required. Early detection of impending failtures and preventive maintenance prevent costly damage and as a user you benefit from the operational safety and high availability of your system.
Item NO.:
AK9840Payment:
T/TProduct Origin:
GermanyColor:
NewGoods stock:
1200Product weight:
0.525KGLead Time:
IN STOCKDOLD AK9840 Controller module
The AK 9840 asymmetry relay monitors the voltage symmetry of the phase voltages, the undervoltage and the correct phase sequence L1-L2-L3. Voltage asymmetry and undervoltage are determined by measuring the arithmetic average between the three phases. If there is no fault in the system being monitored the output relay is energized (closed circuit principle), contact 15-18, 25-28 is closed, and this is indicated by a green LED. The instrument responds to asymmetrical voltage changes caused by unequal mains loading or failure of an outer conductor due to the melting of a fuse. An asymmetry relay always only detects the difference between two voltages, and hence does not react to symmetric voltage falls in the mains supply unless the voltage drops belowthe undervoltage recognition vaiue set at 0.7 UN. lf the set asymmetry is exceeded positively or negatively or if there is undervoltage, the output relay is deenergized alter the set response delay. lf the phase sequence is incorrect, the output relay responds without delay. The LED indicator is extinguished. Thanks to the special circuitry which evaluates the phase angle, an a fault condition, the relay will not be affected by any voltage feedback. Depending an the mains conditions, the feedback is identified as asymmetry - delayed - or as incorrect phase sequence - non-delayed.
• According to IEC/EN 60255-1
• For nominal voltages from 3 AC 110 up to 690 V
• Detection of - Voltage asymmetry - Incorrect phase sequence - Phase failure - Undervoltage
• Voltage feedback recognition
• Also suitable for harmonic industrial mains
• Closed circuit operation
• Contact position indication
• With adjustable delay
• 2 C/O contacts
• Width: 75 mm
The structure and details of the product：
Please make an inquiry for more models
SWF DMCS007F10P00
SYMBOL VRC6940
SYMBOL VRC6940-00V651US
SYMBOL VRC6946-22V651WW
SYNRAD FHIN30-125
SYSTEM 6673A0-350V
SYSTEM HMI520T-007E
Systems 620-TC/TC
SYSTEMS ASSOCIATES
Systems DSS-200
TAC UNC-410-1
TAIYO TNA1-CU10-02
TAMAGAWA TS2014N182E32
TAMAGAWA TS3510N34E13
TAMAGAWA TS3409N205
TAMAGAWA TS3273N201
TAMAGAWA 3HAC14673-1
TASC G34900-A-1138
TASC TASC300
TAYEE AD17-SML
TB WF2C40200D
TCI KRF50ATB
TCI KLR130CCB5
TCI KLCUL55A1
TCI KLCUL12A1
TCI EV0937C
TCI KLC4BE
TCI KLCUL21A1
TCI KRF160APT
TCMS CPU831-TG
TCMS PSM831-TM
TE LAD-N22C
TECHNOLOGIES HK50AA006
TECHNOTRANS 246110010B
TECHNOTRANS TRE31
Teco A510-4040-C3-U
TECO Q4-0150-314
Teledyne TSS350
TELESIS TMC-420
TELESIS TMP3000
TELESIS TMC400/5100
TELESIS TMC400/4100
TELESIS TMC400/3100
TELESIS TMC300
TELTONE TLS-5C-01
TEMPCO PCM10007
Temperature 8650-74862
Temperature CAL9900
TERADYNE A1004-00003 398-723-00
THERMO DE-311M
THERMOVAC TR301/15740
Thomson TG10K259-A00X140
Thouch MC-HPG-300
ThyssenKrupp 6300ABN1
TOKUDA TPG-1RM
TOKUDA TPG-1RM
Tokyo CPC-G227B01A-11
TOTAL 2880045-01
Total QPH-DEM-S02
Total GCK-DEM-S02
Toyoda TFU-5141
TOYODA R12A831802
T-POLE T-POD-121
TR ZE65M
Transducer TLH3000
Transmitter FX62XXAG01HKMAX
TRAZAR 10E-1MATCH
TRIC AI3351
TR MP3101
Trimble 7400MSi
TRIMEC MP015S221.211
TRIMEC MP015S213.111
TRIPLEX T9432
TRUMPF T3000VA-2
TRUMPF MBE3-50
JUSTWELL PTE. LTD. sells new and discontinued products, and purchases such specialty products through independent channels. Xiamen Rongfeng Electrical Equipment Co., Ltd. is not an authorized distributor, distributor, or representative of the featured products on this website. All product names/images, trademarks, brands, and logos used on this website are the property of their respective owners. Product descriptions, descriptions, or sales with these name images, trademarks, brands, and logos are for identification purposes only and do not imply any association or authorization with any rights holders.
Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.
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