3-1618058-0

**Protective Relays** 

## **KILOVAC WD Series, DIN Rail or Screw Mounted Protective Relays** 

## **Product Facts** 

- n **WD25 Paralleling (Synch Check) Relays** 

- n **WD2759 Over/undervoltage Relays** 

**Maintenance** — WD series protective relays are solid state devices that require no maintenance. They are not designed to be serviced by the user. Consult KILOVAC customer service at 805-2202023 if repairs should be necessary. 

## **Installation and Maintenance Information** 

- n **WD32 Reverse Power Relays** 

**Installation** — To mount the WD series protective relay on a DIN rail, hook the top edge of the cutout on the base of the case over one edge of the DIN rail, then press the opposite side of the cutout containing the release clip over the opposite side of the DIN rail. To remove or reposition the relay, lever the release clip and move the relay as required. WD series relays should be installed in a dry location where the ambient temperature will be within the operating temperature range. 

- n **WD47 Phase Sequence Relays** 

- n **WD5051 Single- or Three-Phase Overcurrent Relays** 

n **WD81OU Over/** required. WD series relays should be **Underfrequency Relays** The WD series offers installed in a dry location where the n **File E58048,** Ww **R** several different models ambient temperature will be within the operating temperature range. **DIN EN50022-35** of protective relays in a common package that is suitable for either DIN rail or screw mounting . These flexible, multifunction **Outline Dimensions** devices offer user selectable Users should thoroughly review the technical data before selecting a product voltages, sense currents 16 X M3.5 part number. It is recommended that user and frequencies . Adjustable also seek out the pertinent approvals time delays are standard . files of the agencies/laboratories and This allows a single part review them to ensure the product meets number to be suitable the requirements for a given application. for multiple applications, 1.38 thereby reducing inventory 2.87 (35.0) costs . | (73.0) ry: TC **Specifications Common to All Models** |__SPEEPEPE **Power Consumption** — 2.5VA, maximum. **Contact Ratings** — 5 amps, resistive, at 120VAC. 5 amps, resistive, at 30VDC. **Isolation from Control to Sense** | SELEREE **Inputs** — 2,500VAC. 4.41 **Mechanical Life** — (112.0) 10 million operations. **Shock** — 10g. **Vibration** — 0.062 (1.57) double amplitude at 10-55 Hz. 0.35 **Terminals** — M3.5 screws. (9.0) **Maximum Wire Size** — 2 x 24 AWG (2.5mm[2] ) solid to DIN 46288 or 2 x 16 —| AWG (1.5mm[2] ) stranded w/end sleeves. 2.95 **Operating Temperature Range** — —— (75.0) [ -40°C to +60°C. **Enclosure** — Plastic case (not sealed). M5 2.36 **Mounting Options** — Snap mounts M4 (60.0) on standard DIN rail (DIN-EN 50022-35) or panel mounts with M4, M5, #8 or #10 screws. 2.36 **Weight** — 14.4 oz. (400g) approxi(60.0) el __|} mately. 1.97 (50.0) 

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**Protective Relays** 

## **KILOVAC WD25 Paralleling Relays** 

## **Product Facts** 

n **Function 25** n **ANSI/IEEE C37.90-1978** 

## **WD25 Operation** 

WD25 paralleling relays are used to ensure that two circuits are synchronized . 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 damage 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 Specifications** 

**Nominal Operating Range** — 120, 208, 277 or 480 VAC, selectable. **Maximum Sensing Range** — 575VAC. 

**Nominal Frequency Range** — 40-400 Hz. **Contact Form** — 2 form C (DPDT). 

## **WD25 Calibration** 

The calibration marks on the faceplate are provided only as guides. Proper calibration requires using an accurate voltmeter. Use the following procedure 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 (generator) terminals. This voltage should be in phase with LINE B (bus) voltage and have the same frequency. 

4. Slowly adjust the SYNC VOLTAGE control clockwise (CW) until the relay energizes. 

## **Sense Voltage** 

||**Sense Voltage**||||||
|---|---|---|---|---|---|---|
||Voltage(nominal)|120||<br>208|277|<br>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)<br>Input Voltage(VAC)|18 to<br>—|54<br>|<br>13 5 to 32<br>—||100 to 200<br>100 to 140|



## **WD25 Controls** 

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## **WD25 Connections** 

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## **WD25 Typical Hookup** 

## **Ordering Information** 

**Typical Part Number 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 . 

**Our authorized distributors are more likely to stock these items.** 

WD25-001 WD25-013 

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**NOTE:** For single dead bus option, connect the generator to 1 & 3 and the bus to 5 & 7 . 

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**Protective Relays** 

## **KILOVAC WD2759 Over/Undervoltage Relays** 

## **Product Facts** 

n **Function 27/59** n **ANSI/IEEE C37.90-1978** 

## **WD2759 Operation** 

## **Sense Voltage** 

|WD2759 AC voltage sens-<br>ing relays provide voltage<br>monitoring and protection<br>in AC systems from 50 to<br>400 Hz   Sensing voltages,<br>number of phases, over and<br>undervoltage setpoint, and<br>time delays are user con-<br>fgured   WD2759 voltage<br>relays operate when the<br>externally adjustable trip<br>point is reached   An exter-<br>nal time delay control is<br>provided with an adjustment<br>of  5 to 10 seconds   This<br>time delay may be used to<br>prevent false tripping when<br>there are slight variations<br>in the voltage supply   On<br>overvoltage (OV) the output<br>relay energizes when the<br>input signal exceeds the<br>trip point   On undervoltage<br>(UV) the output relay ener-<br>gizes when the input signal<br>goes below the trip point<br>A green LED indicates<br>power to the relay   Red<br>LED lights indicate the state<br>of the undervoltage and<br>overvoltage trips|Voltage(nominal)<br>120<br>208<br>277<br>480|
|---|---|
||UV Adjustment Range<br>72-120<br>125-208<br>166-277<br>288-480|
||OV Adjustment Range<br>120-168<br>208-291<br>277-388<br>480-672|
||**Control Voltage**|
||Model WD2759<br>-001<br>-002<br>-003|
||Input Voltage(VDC)<br>18 to 54<br>13 5 to 32<br>100 to 200|
||Input Voltage(VAC)<br>—<br>—<br>100 to 140|
||**WD2759 Specifcations**<br>**Nominal Operating Range**—<br>120, 208, 277 or 480 VAC, selectable.<br>**Maximum Sensing Range**—<br>700VAC.<br>**Nominal Frequency Range**—<br>50-400 Hz.<br>**Contact Form**— 1 form C (SPDT) for<br>undervoltage and 1 form C (SPDT) for<br>overvoltage.<br>**Time Delay Adjustment**—<br>0.5 to 10 sec.<br>**WD2759 Calibration**<br>The calibration marks on the faceplate<br>have a maximum error of 10% and are<br>provided only as guides.  Proper<br>calibration requires using an accurate<br>voltmeter in parallel with the input<br>signal.  Use the following procedure to<br>calibrate your relay.<br>OVER VOLTAGE<br>1. Remove cover.<br>2. Adjust the TRIP SET control fully<br>clockwise (CW) and the TIME DELAY<br>control fully counterclockwise (CCW).<br>3. Apply the desired trip voltage to the<br>relay.<br>4. Slowly adjust the TRIP SET control<br>CCW until the relay trips.<br>5. Remove the applied voltage (do not<br>change the voltage level) and set the<br>TIME DELAY control to the desired<br>time delay.<br>6. Apply the trip voltage to the relay and<br>measure the time to trip.<br>7. Adjust the TIME DELAY and repeat<br>steps 4 and 5 until you have the<br>desired time delay.<br>UNDER VOLTAGE<br>1. Remove cover.<br>2. Adjust the TRIP SET control fully<br>CCW and the TIME DELAY control<br>fully CCW.<br>3. Decrease the applied sensing voltage<br>from the nominal value until the<br>desired tripping voltage is reached.<br>4. Slowly adjust the TRIP SET control<br>CW until the relay trips.<br>5. Set the TIME DELAY control to the<br>desired time delay and apply nominal<br>voltage to the relay.<br>6. Step down the applied voltage from<br>nominal to a level jest below the trip<br>level set in Step 3 and measure the<br>time delay.<br>7. Adjust the TIME DELAY and repeat<br>steps 4 and 5 until the desired time<br>delay is achieved.|



## **Ordering Information** 

**Typical Part Number WD 2759 -002 1. Basic Series:** WD = DIN mount Protective Relay . **2. Type:** 2759 = Over/Undervoltage Relay . **3. Control Voltage:** 001 = 18 to 54VDC 002 = 13 .5 to 32 VDC 003 = 100-200VDC or 100-140VAC . 

**Our authorized distributors are more likely to stock these items.** WD2759-003 

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**Protective Relays** 

**11** 

## **KILOVAC WD2759 Over/Undervoltage Relays** (Continued) 

## **WD2759 Controls** 

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## **WD2759 Connections** 

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**WD2759 Typical Hookup** 

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**Protective Relays** 

## **KILOVAC WD32 Reverse Power Relays** 

## **Product Facts** n **Function 32** 

## **WD32 Operation** 

WD32 reverse power relays are used to monitor the direction of power from AC generators . This is accomplished by measuring I cos q .  If current from the generator is reversed and exceeds the adjustable setting, the relay will trip . A 0 .5 to 20 second time delay is provided .  A correct setting of the trip point and time delay will prevent motorizing the generator and prevent tripping during transients that occur while synchronizing .  A POWER LED indicates the condition of the power supply and a REVERSE POWER TRIP LED indicates the output status of the relay . 

## **WD32 Specifications** 

**Nominal Operating Range** — 120 to 480 VAC, 1 or 3 phase. **Maximum Sensing Range** — 575VAC. 

**Nominal Sensing Current** — 5A. **Nominal Frequency Range** — WD32-00X — 40-400 Hz.; WD32-01X — 60 Hz. 

**Contact Form** — 2 form C (DPDT). **Time Delay Adjustment** — 0.5 to 20 sec. 

## **Control Voltage** 

|**Control Voltage**||||
|---|---|---|---|
|Model WD32|-001|-002|-003|
|Input Voltage(VDC)|18 to 54|13 5 to 32|100 to 200|
|Input Voltage(VAC)|—|˜|100 to 140|



## **WD32 Calibration** 

The calibration marks on the faceplate have a maximum error of 10% and are provided only as guides.  Proper calibration requires using an accurate Current Meter in series with the input current.  Use the following procedure to calibrate your relay. 

REVERSE POWER 

1. Remove cover. 

2. Adjust the TRIP SET control fully clockwise (CW) and the TIME DELAY control fully counterclockwise (CCW). 

3. Apply the desired trip current to the relay.  NOTE: for the Reverse Power (WD32-00X) a resistive load must be used and for the Reverse kVAR 

- (WD32-01X) an inductive load must be used. 

4. Slowly adjust the TRIP SET control CCW until the relay trips. 

5. Remove the applied Current and set the TIME DELAY control to the desired time delay. 

6. Re-apply the Current (10% more than the trip current) to the relay and measure the time to trip. 

7. Adjust the TIME DELAY and repeat steps 4 and 5 until you have the desired time delay. 

**Sense Current** —  Reverse Power Trip: 0.2 to 1.0A (4-20% of nominal sense current). 

## **Ordering Information** 

**Typical Part Number WD 32 -00 2 1. Basic Series:** WD =   DIN mount Protective Relay . 

**2. Type:** 32 = Reverse Power Relay . **3. Load:** 00 = Resistive (power) 01 = Inductive (kVAR, 60 Hz .) 

**4. Control Voltage:** 1 = 18 to 54VDC 2 = 13 .5 to 32 VDC 

- 3 = 100-200VDC or 100-140VAC . 

**Our authorized distributors are more likely to stock these items.** WD32-003 WD32-011 

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**Protective Relays** 

**11** 

## **KILOVAC WD32 Reverse Power Relays** (Continued) 

**WD32 Controls** 

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## **WD32 Connections** 

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## **WD32 Typical Hookup** 

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PAGE 7 

**Protective Relays** 

## **KILOVAC WD47 Phase Sequence Relays** 

## **Product Facts** 

n **Function 47** n **ANSI/IEEE C37.90-1978** 

## **Control Voltage** 

|**Control Voltage**||||
|---|---|---|---|
|Model WD47|-001|-002|-003|
|Input Voltage(VDC)|18 to 54|13 5 to 32|100 to 200|
|Input Voltage(VAC)|—|—|100 to 140|



## **WD47 Operation** 

WD47 phase sequence relays are designed to monitor the correct phase rotation and loss of phase of three phase ac systems from 50 to 400 Hz .  An incorrect phase sequence or loss of any phase will cause the WD47 to pickup . When the phase sequence is corrected or the lost phase is restored the contacts dropout .  Red LED’s light to indicate a fault condition .  A green LED indicates power to the relay . The WD47 is often used to detect reverse phase rotation or loss of phase to generators, busses, motors, and transformers . 

## **WD47 Specifications** 

**Nominal Operating Range** — 120 to 480 VAC. **Maximum Sensing Range** — 575VAC. 

**Nominal Frequency Range** — 40-400 Hz. **Contact Form** — 2 form C (DPDT). 

## **WD47 Calibration** 

The WD47 has no adjustments and no calibration is necessary.  Proper operation may be verified as follows: 

1. Apply a nominal, three-phase input with the correct phase sequence. The output relay should dropout and the green LED should light. 

2. Apply a nominal, three-phase input with an incorrect phase sequence. The output relay should pickup and the red LED should light. 

3. Apply only one or two phases with the correct phase sequence.  The output relay should pickup and the red LED should light. 

## **WD47 Controls** 

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## **WD47 Connections** 

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## **WD47 Typical Hookup** 

## **Ordering Information** 

|<br>**1. Basic**<br>WD =<br>**2. Type:**<br>47= Ph|<br>**Series:**<br>DIN mount Protective Relay|||
|---|---|---|---|
||<br>**l Voltage:**|||



## **3. Control Voltage:** 

- 001 = 18 to 54VDC 002 = 13 .5 to 32 VDC 003 = 100-200VDC or 100-140VAC . 

**Our authorized distributors are more likely to stock these items.** 

WD47-001 

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**Protective Relays** 

## **KILOVAC WD5051 1Ø and 3Ø Overcurrent Relays** 

## **Product Facts** 

n **Function 5051** 

## **Sense Current** 

## **WD5051 Operation** 

WD5051 AC current sensCurrent (nominal) 1 3 6 8 ing relays provide current IOC 0 .2 to 1 .2 0 .6 to 3 .6 1 .2 to 7 .2 1 .6 to 9 .6 monitoring and protection TOC 0 .2 to 1 .2 0 .6 to 3 .6 1 .2 to 7 .2 1 .6 to 9 .6 in AC systems from 50 to 400 Hz . Nominal Sensing **Control Voltage** Current, Instantaneous Over Model WD5051 -001 -002 -003 Current setpoint, Time Over Input Voltage (VDC) 18 to 54 13 .5 to 32 100 to 200 Current setpoint, and Time Input Voltage (VAC) — — 100 to 140 Over Current time delay are user configured .  WD5051 **WD5051 Specifications WD5051 Calibration** current relays operate when **Sense Current Full Scale** — 1, 3, 6 The calibration marks on the faceplate the externally adjustable or 8A, selectable. are provided only as guides.  Proper trip point is reached . An **Maximum Sensing Current** — calibration requires using an accurate external time over current 10A continuous; 30A for 10 sec.; ammeter in series with the current time delay control is pro60A for 2.5 sec.; 100A for 0.9 sec.. source.  Use the following procedure to vided with an adjustment **Nominal Frequency Range** — calibrate your relay: of  .5 to 20 seconds . This 50-400 Hz. OVERCURRENT time delay may be used to **Contact Form** — 1 form C (SPDT) for 1. Remover the cover. prevent false tripping when IOC and 1 form C (SPDT) for TOC. 2. Adjust the TRIP SET control fully there are slight variations **TOC Time Delay Adjustment** — clockwise (CW) and the TIME DELAY in the sensed current . With 0.5 to 20 sec. control (TOC only) fully countercontrol power applied, the **IOC Operate Time (max.)** — clockwise (CCW). Instantaneous Over Current 0.2 sec. 3. Apply the desired trip current to the (IOC) contacts pick-up when relay. the input signal exceeds the 4. Slowly adjust the TRIP SET control IOC trip setpoint .  Similarly, CCW until the relay trips. with control power applied, 5. Remove the applied current (do not the Time Over Current change the current level). Set the (TOC) contacts pick-up after TIME DELAY (TOC only) control to the preset time delay when the desired time delay. the Sense Current rises above the TOC trip setpoint . The IOC contacts may also be configured to function as an under current relay .  A green LED indicates power to the relay .  Red LED lights indicate the state of the IOC and TOC trips . 

**11** 

## **Ordering Information** 

- **Typical Part Number WD 5051 -002 1. Basic Series:** 

WD =   DIN mount Protective Relay . 

**2. Type:** 5051 = Single Phase Overcurrent Relay . 5051-3 = Three Phase Overcurrent Relay . 

**3. Control Voltage:** 

- 001 = 18 to 54VDC 

- 002 = 13 .5 to 32 VDC 

- 003 = 100-200VDC 0r 100-140VAC . 

**Our authorized distributors are more likely to stock these items.** 

WD5051-001 WD5051-003 WD5051-3-001 

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PAGE 9 

**Protective Relays** 

## **KILOVAC WD5051 1Ø and 3Ø Overcurrent Relays** (Continued) 

## **WD5051 Controls** 

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## **WD5051 Connections** 

**WD5051 Single Phase Model** 

**WD5051-3 Three Phase Model** 

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**WD5051 Typical Hookup** 

## **WD5051 Single Phase Model** 

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## **WD5051-3 Three Phase Model** 

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