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参数资料
| 型号： | WD81OU003 |
| 元件分类： | 功率/信号继电器 |
| 英文描述： | POWER/SIGNAL RELAY, SPDT, MOMENTARY, 0.013A (COIL), 200VDC (COIL), 2500mW (COIL), 5A (CONTACT), 30VDC (CONTACT), DIN-RAIL MOUNT |
| 文件页数： | 2/7页 |
| 文件大小： | 499K |
| 代理商： | WD81OU003 |
1309
Dimensions are shown for refer-
ence purposes only.
Dimensions are in inches over
(millimeters) unless otherwise
specied.
Specications and availability
subject to change.
www.tycoelectronics.com
Technical support:
Refer to inside back cover.
KILOVAC
Catalog 1308242
Issued 3-03 (PDF Rev. 6/07)
WD25 Paralleling Relays
Function 25
ANSI/IEEE C37.90-1978
WD25 Operation
WD25 paralleling relays are used to ensure that two circuits are synchro-
nized. When voltage, phase relationship and frequency are within the
selected synchronizing limits, the output relay will energize. The WD25
paralleling relay allows for a generator to be brought online without dam-
age or system disturbance. WD25 series with a "dead bus" feature will
energize for a synchronized condition or an "on line" generator, "dead bus"
condition. This "dead bus" feature allows the generator to energize a dead
bus. The "double dead bus" feature permits paralleling of two buses when:
(a) both the line voltages are equal and in phase, or (b) when either bus is
"hot" and the other bus is "dead."
WD25 Calibration
The calibration marks on the faceplate are provided only as guides. Proper
calibration requires using an accurate voltmeter. Use the following proce-
dure to calibrate the WD25:
1. Remove the cover.
2. Adjust the SYNC VOLTAGE control fully counterclockwise (CCW). Apply
nominal voltage to the LINE B (bus) sensing terminals.
3. Apply the maximum desired synchronization voltage to the LINE A (gen-
erator) terminals. This voltage should be in phase with LINE B (bus) volt-
age and have the same frequency.
4. Slowly adjust the SYNC VOLTAGE control clockwise (CW) until the relay
energizes.
WD25 Connections
WD25 Specications
Nominal Operating Range: 120, 208, 277 or 480 VAC, selectable.
Maximum Sensing Range: 575VAC.
Nominal Frequency Range: 40-400.
Contact Form:
2 form C (DPDT).
Sense Voltage:
Voltage (nominal)
120
208
277
480
Synch Voltage (% of nom.)
6 - 30% (≈ 4°- 20° electrical degree)
Dead Bus Voltage (% of nom.)
10 - 70% (Dead Bus)
Control Voltage:
Model WD25
-0X1
-0X2
-0X3
Input Voltage (VDC)
18 to 54
13.5 to 32
100 to 200
Input Voltage (VAC)
–
100 to 140
WD25-001
WD25-013
Our authorized distributor is more likely to stock these items.
Ordering Information
Typical Part Number
B
WD 25 -00 2
1. Basic Series:
WD = DIN mount Protective Relay.
2. Type:
25 = Paralleling Relay.
3. Dead Bus:
00 = Double Dead Bus
01 = Single Dead Bus
02 = Generator to Generator
4. Control Voltage:
1 = 18 to 54VDC
2 = 13.5 to 32 VDC
3 = 100-200VDC or 100-140VAC.
WD25 Controls
WD25 Typical Hookup
NOTE:
For single dead bus option, connect the gen-
erator to 1 & 2 and the bus to 4 & 5.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| WD81OU-003 | 功能描述:工业继电器 WD81OU-003=RELAY, OVR/UNDR FRE RoHS:否 制造商:TE Connectivity / Kilovac 触点形式:1 Form A (SPST-NO) 触点电流额定值: 线圈电压:9 VDC to 36 VDC 线圈电阻:38 Ohms 线圈电流: 切换电压: 安装风格:Panel 触点材料:Silver Palladium |
| WD-8347 | 制造商:GC Electronics 功能描述: |
| WD-8644 | 制造商:GC Electronics 功能描述: |
| WD-8780 | 制造商:GC Electronics 功能描述: |
| WD9001BKHG | 制造商:Western Digital Corp 功能描述:WD S252.5SAS - Trays |
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