A988C6068EE33B0ABE465CA9E7BD0C70FFCC03E9

Function:

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)

• ANSI/IEEE C37.90-1978• UL file No. E58048• CSA file No. LR61158

Application:These relays are designed for automatic paralleling(synchronizing) of generators. The relays sense thephase angle displacement and the amplitude differ-ence between two voltages and permit parallelingonly when both voltages are equal and in phase. Ashort time delay is provided to assure that thefrequencies are essentially the same at the momentof paralleling. The basic series is designed to paralleltwo or more energized AC generators. The “DeadBus” type provides paralleling of AC generators tothe main bus. They permit electrical connection of anenergized generator to an un-energized line (DeadBus). If the bus is energized, connection of thegenerator to the bus is permitted only when both aresynchronized.

Paralleling Relays

PRODUCT SPECIFICATIONS

WILMAR™ Protective Relays – 1800 Series

Part NumberSensing Voltage .............................

Line Frequency ...............................Pick-Up Adjustment .......................

Time Delay .....................................

Output Contacts .............................

1800 Series120 V, 230 V, 277 V, 380 V, 460 V, 575 V, & 415 V

50-500 HzExternal adjustment for field sensing of 10-30% ofnominal input voltage. (Vertical voltage differential of 6to 18 electrical degrees).

Fixed @ 60 milliseconds is provided to assure that thefrequencies of both input lines are sufficiently close topermit paralleling within the preset window.

One set N.O., one set N.C.5 amp resistive at 120 VAC or 28 VDC

A. 3 Phase, 4 Wire SystemConnect phase "A" of LINE 1 to terminal 1Connect phase "A" of LINE 2 to terminal 3Connect the neutrals to terminals 2 & 4

B. 3 Phase, 3 Wire or 1 Phase, 2 Wire SystemConnect phase "A" of LINE 1 to terminal 1Connect phase "B" of LINE 1 to terminal 2Connect phase "A" of LINE 2 to terminal 3Connect phase "B" of LINE 2 to terminal 4

Consult factory for additional models and options.

25

11/64" DIA.4 MTG. HOLES

3

4

4 7/8

4 1/2

3 7 /8

4 5 /8

#6 - 32 STUDS6 PLACES

Note: Dimensions in inches. Multiply values by 25.4 for dimensions in mm.

Function:

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) 37

Paralleling Relays

Selection Guide(Typical Applications)

Output Contact Options: 1. Two Form A. (Add -A to Model Number)2. Two Form B. (Add -B to Model Number)

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BD0081seireSstcatnoC stcatnoC stcatnoC stcatnoC stcatnoC

BDD0081seireSstcatnoC stcatnoC stcatnoC stcatnoC stcatnoC

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21eniL X oN

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41eniL X

esolC nepO esolC nepO esolC nepO2eniL X

51eniL X

esolC nepO esolC nepO nepO esolC2eniL X

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A988C6068EE33B0ABE465CA9E7BD0C70FFCC03E9