1-1618065-8

‘Geo Electronics 

## Paralleling Relays 

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WILMAR™ Protective Relays ~ 1800 Series Function: 25<br>» ANSI/IEEE C37.90-1978<br>| A *~ ULCSA filefile No.No. E58048LR61158 < B<br>reac eee #6 - 32 STUDS<br>| ReAgoeae ge These(synchronizing) relays areof designedgenerators.for automaticThe relays senseparalleling the<br>Aes ee geeae ee, , phase angle displacement and the amplitude differ-<br>| of : oe a ence between two voitages and permit paralleling<br><ae2G eee Pe a only when both voitages are equal and in phase. A<br>H OOeee See areAe gi BWPres oneekaeAR MES ce Bees“mS crei  4 shortfrequenciestime  aredelayessentiallyis providedthe sameto assureat the momentthat the<br>oS f Sener Scogate® cer Aa q + . yt : .<br>| ee ee aS ae of paralleling. The basic series is designed to parallel<br>| 4a 8 te eee two or more energized AC generators. The "Dead<br>| Nee Bus” type provides paralleling of AC generators to<br>i oN eee ee US NPE P Paralelng ¢ gener<br>i NS Po oe eee the main bus. They permit electrical connection of an<br>NG oS Bus). If the bus is energized, connection of the<br>' Nepee eSaeee fe generatorsynchronized.to the bus is permitted only when both are<br>6 ae<br>Xe h<br>ff % o®<br>| CONNECTIONS<br>4 MTG. HOLES<br>| 11/64" DIA. PR orgy<br>| NG NO |<br>|; Note: Dimensions in inches. Multiply values by 25.4 for dimensions in mm. ‘O-O-O-O-©-O-O-O-| pe 6 > i|<br>CHF C_i<br>: LINE 1 LINE 2 FORM B FORM A<br>i (GENERATOR) (BUS) CONTACTS SONTAGTS<br>| PRODUCT SPECIFICATIONS A.3 Phase, 4 Wire sen nal<br>Par ‘Herabet 1800 Series "CoCo nn ect phaseect hace " "° A * o ff L INEINE 2 to termi nalnal 3<br>SENSING VOMAGE .....erececsseereeees | 120 V, 230 V, 277 V, 380 V, 460 V, 575 V, & 415 V Connect the neutrals to terminals 2 & 4<br>| Line FreqUeNCy .......secsessessenees | 50-500 Hz<br>|| Pick-Up Adjustment ...........:08.+ | External adjustment for field sensing of 10-30% of B.3 Phase, 3 Wire or1 Phase, 2 Wire System<br>nominal input voltage. (Vertical voltage differential of 6 Connect phase "A’ of LINE 7 to terminal 1<br>to 18 electrical degrees). Connect phase "B" of LINE 1 to terminal 2<br>Connect phase "A" of LINE 2 to terminal 3<br>i Time Delay ...esecrseseeeeeeese | Fixed @ 60 milliseconds is provided to assure that the Connect phase "B" of LINE 2 to terminal 4<br>\ frequencies of both input lines are sufficiently close to ; ae ;<br>permit paralleling within the preset window. Consult factory for additional models and options.<br>Output Contacts ......seseenees | One Set N.O., one set N.C.<br>‘5 amp resistive at 120 VAC or 28 VDC<br>**----- End of picture text -----**<br>


36 Tyco Electronics / www.tycoelectronics.com / Factory Direct Technical Support: 800-253-4560, ext. 2023 (U.S., Canada, Mexico) or 805-220-2020, ext. 2023 (International) 

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Paralleling Relays 

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## Selection Guide (Typical Applications) 

|Sensing Voltage|Series 1800||Series 1800DB||Series 1800DDB|
|---|---|---|---|---|---|
||Generator to Generator||Generator to Bus||Bus to Bus|
|Permits paralleling oftwo generators|||Normally used to permit||Permits paralleling of two power|
|ontywhen they are “on-line” and||paralteling ofa generator to a|||lines (buses) when:<br>(a) both line|
|their voltages are equal and in phase<br>(synchronized)||bus when:<br>{a} both fine<br>voltages are equal and in phase,||voltages are equal and in phase, or:<br> | (b} when either bus is “hot” and the||
|||or: (b) when the generator is|||other bus is “dead”|
|||“on-line” and the bus is “dead”||||
|230 Volts|1820X||1820DBX||1820DDBX|
|380 Volts|1830X||1830DBX||1830DDBX|
|460Volts|||1840DBX||1840DDBX|
||1860X||1860DBX||1860DDBX|
|277 Volts|1870X||1870DBX||1870DDBX|
||||Series1800<br>Contacts|Series1800DB<br>Series1800DDB<br>Contacts<br>Contacts||
|.|Not|||||
|ee<br>ee<br>ee<br>ee|||Close<br>Close<br>Close||Close<br>Close<br>Close|
||||Close||Close<br>Close|
||||Close<br>Close||Close|
||||Close<br>Close||Close|



Output Contact Options: 1. Two Form A. (Add -A to Model Number) 

. 

2. Two Form B. (Add -B to Model Number) 

Tyco Electronics / www.tycoelectronics.com / Factory Direct Technical Support: 800-253-4560, ext. 2023 (U.S., Canada, Mexico) or 805-220-2020, ext. 2023 (International) 

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