1850X

1800 MACOM | Alldatasheet

Document overview

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Technical content

Function:

• 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 the phase angle displacement and the amplitude differ- ence between two voltages and permit paralleling only when both voltages are equal and in phase. A short time delay is provided to assure that the frequencies are essentially the same at the moment of paralleling. The basic series is designed to parallel two or more energized AC generators. The “Dead Bus” type provides paralleling of AC generators to the main bus. They permit electrical connection of an energized generator to an un-energized line (Dead Bus). If the bus is energized, connection of the generator to the bus is permitted only when both are synchronized. Paralleling Relays PRODUCT SPECIFICATIONS WILMAR™ Protective Relays – 1800 Series Part Number

1800 Series

120 V, 230 V, 277 V, 380 V, 460 V, 575 V, & 415 V

External adjustment for field sensing of 10-30% of nominal input voltage. (Vertical voltage differential of 6 to 18 electrical degrees). Fixed @ 60 milliseconds is provided to assure that the frequencies of both input lines are sufficiently close to permit 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 System Connect phase "A" of LINE 1 to terminal 1 Connect phase "A" of LINE 2 to terminal 3 Connect the neutrals to terminals 2 & 4 B. 3 Phase, 3 Wire or 1 Phase, 2 Wire System Connect phase "A" of LINE 1 to terminal 1 Connect phase "B" of LINE 1 to terminal 2 Connect phase "A" of LINE 2 to terminal 3 Connect phase "B" of LINE 2 to terminal 4 Consult factory for additional models and options. 11/64" DIA. 4 MTG. HOLES 4 7/8 4 1/2 3 7/8 4 5/8 #6 - 32 STUDS

6 PLACES

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

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