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Meagacon AS
SECTOR SYNCHRONISING RELAY

SECTOR SYNCHRONISING RELAY

Product catalog summary

Specifications
The KSQ331E is a sector synchronising relay designed for low differential check synchronising using a sector principle. It supports bi-directional synchronising and can be used in both manual and semi-automatic modes. The relay includes integral voltage differential protection and features an 'Easyview' status presentation for visual monitoring of relative speed and phase angle relationships. It is suitable for both single and three-phase systems, with user-settable limits and retention time.

Functional Description
The KSQ331E synchronising relay closes when the voltage and phase angle of the incomers are within set limits during the retention time. A green lamp indicates the close command to the breaker, and additional lamps indicate the presence of reference source and incomer status. The unit is designed for manual and semi-automatic synchronising, with no compensation for breaker closing time. For automatic synchronising, the KSQ104F 'SPOT ON' principle is recommended.

Compliance and Standards
The unit complies with IEC60092-504 and relevant environmental and EMC tests specified in IEC60068/60092 and IEC61000/60533, meeting Classification Societies requirements.

Technical Specifications

Monitored Voltage Input: 100-120, 200-240, 380-415, or 440-460VAC, 40-70Hz
Optional Auxiliary Supply: AC and DC options available
Contact Rating: AC 100VA - 250V/2A max, DC 50W - 100V/1A max
Adjustments: High voltage limit 2-15%, Low voltage limit 2-15%, Phase angle 4-30 degrees, Retention time 100-600mS
Temperature Range: -20 to +70ºC
Weight: 0.7kgs
Front Protection: IP54 (IP65 optional)

Applications
The KSQ331E is suitable for applications requiring sector synchronisation, particularly where synchronisation accuracy and duration are interrelated. It is not suitable for situations with continuously fluctuating loads, such as synchronising against a shaft generator in rough weather.

Ordering Information
When ordering, specify the product type (KSQ331E), auxiliary supply, network voltage, and analogue output. Example: KSQ331E, 200-240V.

Additional Notes
The KSQ331E uses a low differential bi-directional check synchronising relay. Synchronisation accuracy can be calculated using the formula Df = S : 360 x t, where S is the phase angle and t is the retention time.

Catalog excerpts

Datasheet_KSQ332EJD1 (rev 1.0... - pdfMachine from Broadgun Software, http://pdfmachine.com, a great PDF writer utility! table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:4.00pt "Arial", sans-serif; } .font1 { font:5.00pt "Arial", sans-serif; } .font2 { font:6.00pt "Arial", sans-serif; } .font3 { font:7.00pt "Arial", sans-serif; } .font4 { font:10.00pt "Arial", sans-serif; } .font5 { font:25.00pt "Arial", sans-serif; } .font6 { font:8.60pt "Arial Black", sans-serif; } .font7 { font:11.00pt "Arial Black", sans-serif; } .font8 { font:12.00pt "Impact", sans-serif; } KSQ331x SECTOR SYNCHRONISING RELAY Lowdifferential check synchronising, sector principle Bi-directional synchronising Manual and semi-automatic synchroniser Integral voltage differential protection "Easy view" status presentation Spcifications Description The digitally controlled KSQ331E provides both visual presentation of relative speed and phase angle relationship, and output signal necessary to permit check synchronising between two systems. The synchronising relay will close when incomers voltage and phase angle has been within the limits during the setretention time. Agreen lamp (at 12 o'clock) indicates the close command to the breaker. There is lamp indication for reference source present (BUS PWR, only when generator is powered) and incomer status (GENPWR). The green lamp (VOLT OK) is litwhen incomer voltage is within the set limits. Applications KSQ331E can be used both for single and three phase systems. Any two phases (also neutral) can be used for synchronising as long as it is the same two phases on both side of the breaker. The unit is meant for manual and semi-automatic synchronising only. There is no compensation for the breaker closing time. For automatic synchronising the KSQ104F "SPOT ON" principle should be used to get compensation for the breaker closing delay. User setable limits and retention time on the rear. Monitored Voltage Input: 100-120,200-240,380-415, or440-460VAC,40^70Hz Optional AC: 100-120,200-240,380-415, Aux.Supply or440-460VAC 40-70Hz _DC: 24,48or110VDC_ Contact Rating: AC: DC: 100VA-250V/2Amax. 50W-100V/1Amax. Adjustments: High voltage limit : 2-15% of net voltage Low voltage limit : 2-15% of net voltage Phase angle : 4-30 degrees Retention time : 100-600mS Temperature: -20to+70°C Weight: 0.7kgs Front protection: IP54 (IP65 optional) Unit meets IEC60092-504 and relevant environmental and EMC tests specified in IEC60068/60092 and IEC61000/60533 respectively, to comply with Classification Societies requirements. Megacon is the inventor of the original, now industry standard "rotating" LED display, and a trendsetter in modern synchronisation control. C REF: Datasheet.KSQ331x- REV: 1.03 /07.2011 Megacon reserves the rightto make any changes to the information at any time www.megacon.com

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