1800 Datasheet, PDF (1/2 Pages) C&D Technologies – Axial Lead Inductors

WILMAR™ Protective Relays – 1800 Series
#6 - 32 STUDS
6 PLACES
3
3
7
/8
5 ^/8
4
Paralleling Relays
Function: 25
• 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.
11/64" _DIA.
4 MTG. HOLES
Note: Dimensions in inches. Multiply values by 25.4 for dimensions in mm.
PRODUCT SPECIFICATIONS
Part Number
1800 Series
Sensing Voltage ............................. 120 V, 230 V, 277 V, 380 V, 460 V, 575 V, & 415 V
Line Frequency ...............................
Pick-Up Adjustment .......................
50-500 Hz
External adjustment for field sensing of 10-30% of
nominal input voltage. (Vertical voltage differential of 6
to 18 electrical degrees).
Time Delay ..................................... Fixed @ 60 milliseconds is provided to assure that the
frequencies of both input lines are sufficiently close to
permit paralleling within the preset window.
Output Contacts ............................. 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.
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