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Woodward WIP1 Manual Download Page 48

Manual WIP1 GB

Woodward

DOK-TD-WIP1 Rev.F

48

7.2.7 Checking the external blocking

The external blocking input inhibits e. g. the function of the high set element of the phase current.

For this purpose the parameter "Blocking Function" in the menu "Signal input blocking" for the high set ele-
ment must be set to "Yes". Then the terminals 14 and 17 are supplied with auxiliary voltage
(e.g. 110 V DC).

The time delay tI> should be set to EXIT for this test. Inject a test current which could cause a high set (I>>)
tripping. Observe that there is no trip and alarm for the high set element.

Remove the auxiliary supply voltage from the blocking input. Inject a test current to trip the relay (message
„TRIP“ on the display). Interrupt the test current.

7.2.8 Checking the input "Fast trip"

The "Fast trip" function allows the unit to be tripped within the shortest possible time. A prerequisite for cor-
rect tripping is the correct setting of the parameters. In the menu "Signal input - fast trip" the setting should
be "instantaneously“. If a current is now injected which is greater than the lowest adjustable overcurrent
threshold and an auxiliary voltage (110 V DC) is supplied to the terminals 32 and 33, tripping takes place in-
stantaneously (tl>=50 ms ±10 ms).

7.2.9 Remote trip

Checking the input "Remote trip" does not require any test current. The terminals 20 and 22 are provided
with supply voltage (230 V AC ±20%). This leads to tripping within 200 ms.

Caution!

These terminals may only be supplied with voltage for a maximum of 2 min.

7.2.10 Test of input „External Reset“

For testing this function, voltage is to be applied to terminals 14 and 15. The relay is activated now by it-self
and in the display appears „External reset activated“.

7.2.11 Checking the battery

The battery test is carried out by pressing the key <DISPLAY ON>. If the display indicates "Protection pa-
rameter", the battery is ok.

Note:

Relays which have been out of order for more than one month might show "Battery voltage too low" on the
display when the key <DISPLAY ON> is first pressed. The reasons for this are that, on the one hand, the ca-
pacitors are completely discharged and, on the other hand, the long storage time of the battery.

But before replacing the battery the power supply has switched off and the <DISPLAY ON> key is pressed
again. If "Battery voltage too low" is indicated again, the battery does need replacing.

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Summary of Contents for WIP1

Page 1: ...WIP1 Self powered time overcurrent relay Manual WIP1 Revision F...

Page 2: ...s the right to update any portion of this publication at any time Information provided by Woodward Governor Company is believed to be correct and reliable However no responsibility is assumed by Woodw...

Page 3: ...ing of the WIP1 25 5 7 4 Dimensioning example 26 6 Operations and settings 28 6 1 Function of push buttons 29 6 1 1 Measuring value and fault indication 29 6 1 2 Display 30 6 1 3 Setting procedure 30...

Page 4: ...Clearing the fault memory 42 7 Relay testing and commissioning 43 7 1 Checking the set values 43 7 2 Secondary injection test 43 7 2 1 Test equipment 43 7 2 2 Example of test circuit 44 7 2 3 Checking...

Page 5: ...d descriptions this manual includes Text graphic and formulae do not always apply to the actual delivery scope The drawings and graphics are not true to scale We do not accept any liability for damage...

Page 6: ...voided will result in death or serious injury WARNING indicates a hazardous situation which if not avoided could re sult in death or serious injury CAUTION used with the safety alert symbol indicates...

Page 7: ...and plastic ash trays away from the control the modules and the work area as much as possible 4 Do not remove any printed circuit board PCB from the control cabinet unless absolutely necessary If you...

Page 8: ...its power supply energy from the C T circuits and provides the tripping pulse energy to the circuit breaker Due to its wide setting ranges the trip ping characteristic can be selected to protect a wi...

Page 9: ...ipping and or alarm function Redundant power supply unit for external voltage supply Option WIP1 2 Serial interface for connection to SCADA Systems Option WIP1 3 Phase and earth current measuring duri...

Page 10: ...Manual WIP1 GB Woodward DOK TD WIP1 Rev F 10 4 Design 4 1 Connections Figure 4 1 Connection example with relay tripping Important Information It is essential that the WIP1 is earthed via terminal...

Page 11: ...te In this circuit we recommend earthing the current transformers via the relay connection 1 If the cur rent transformers have to be earthed directly the earthing connection on WIP1 must be removed Ot...

Page 12: ...Manual WIP1 GB Woodward DOK TD WIP1 Rev F 12 Figure 4 3 Block diagram WIP1 I1 only phase current measuring...

Page 13: ...Manual WIP1 GB Woodward DOK TD WIP1 Rev F 13 Figure 4 4 Block diagram WIP1 I1 E1 with earth fault detection via C T cable type...

Page 14: ...lays are connected to a PC laptop via an RS232 RS485 interface converter by using the two wire method Each relay is connected to terminals P and N The last relay in terms of hardware must then be equi...

Page 15: ...anically decoupled from the relay electronics Signal inputs Signal inputs for blocking and protection terminals 14 and 17 for fast trip terminals 32 and 33 as well as external reset terminals 14 and 1...

Page 16: ...36 For applications where a higher trip output energy is required a relay with one potential free changeover contact is provided in the trip circuit This Relay can be assigned to any function see 5 7...

Page 17: ...ing the Battery Disconnect from all power supply sources Secure against reconnection Verify if the equipment is dead Connect to ground and short circuit all phases Cover or safeguard all live adjacent...

Page 18: ...decision are carried out by the microcontroller digitally The relay program is saved in an EPROM Electrically Programmable Read Only Memory With this program the CPU of the microcontroller processes...

Page 19: ...starting approx 0 22 A three phase starting approx 0 17 A 5 3 3 Important note for the battery function Battery Mode By pressing the push button Display ON the relay is activated WIP1 1 is supplied fr...

Page 20: ...d the LED flashes and can be switched off by pressing any push button Refer to chapter 5 7 4 and 5 9 5 5 Function push buttons The following four function push buttons are arranged at the front of the...

Page 21: ...P1 Rev F 21 5 6 Opening the front cover For adjustment of the unit the transparent cover has to be opened as illustrated Do not use force The trans parent cover has two inserts for labels Figure 5 2 H...

Page 22: ...ort circuit currents which would damage the overcurrent relay Here some brief instructions on how tripping coil and current transformer are determined First of all it must be established how much forc...

Page 23: ...saturation to such an extent that the current flowing through the coil becomes too low to ensure definite tripping The secondary transformer current Isec is proportional to the primary transformer cu...

Page 24: ...ue can be found in diagram 1 or diagram 2 The resistance of the tripping coil can be determined by measuring or calculated from the rated data of the coil If a transformer is loaded with its rated imp...

Page 25: ...Diagram 2 WIP1 impedance curve for the range 1 A to 30 A 5 7 3 Overloading of the WIP1 The maximum power consumption of the WIP1 must not exceed 1000 VA for the maximum tripping time The maximum power...

Page 26: ...he cable impedance is assumed to be 0 5 According to eq 4 the maximum impedance is as follows Zmax 57 9 Now the maximum voltage Umax can be calculated with eq 3 0 5 57 9 28 95 If a current transformer...

Page 27: ...consumption The graph shows the limit value of the load to which the WIP1 may be subjected in case of a short circuit In the event that the transformer power nevertheless exceeds the limit value it is...

Page 28: ...vated by transformer current the main menu is displayed The different menus can be se lected by pressing SELECT RESET Figure 6 1 Main menu overview Fault memory 5 Fault memory 4 Fault memory 3 Fault m...

Page 29: ...the relay by the DISPLAY ON push button the default settings of the relay are recall from the parameter memory DEFAULT_SETTINGS ____AKTIVATED____ 6 1 1 Measuring value and fault indication Display whe...

Page 30: ...pping relay assignment System parameters Signal input parameters Fault memory Relay test The fault memory consists of five individual stores of identical configuration For changing from the main menu...

Page 31: ...ng the ENTER push button the password can be entered again After the password has been accepted parameters can be set for 5 minutes without re entering the pass word During this time the procedure for...

Page 32: ...MEMORY_1 The fault memory provided in the WIP1 1 can save up to five trip events The individual registers are select ed by push buttons and Configuration of all registers is identical TRIP I ___L1_xx...

Page 33: ...SET push button mes sage Fault memory 1 is displayed again Example When selecting an inverse time characteristic a reset time of 300 s is set and the following infor mation can be gathered in failure...

Page 34: ...verse Very_Inverse Extremely Inverse RI Inverse Long Time Inverse X 2_Time X 2 5_Time X 3_Time X 3 5_Time X 4_Time The text displayed can be changed by push buttons By the ENTER push button the requir...

Page 35: ...e set value Minimal_time tImin_ _0 1_s Note The minimum time cannot be set lower than the shortest trip delay of a tripping characteristic The latter depends on the multiplier of a tripping characteri...

Page 36: ...aracteristic Normal_Inverse__ When adjusting the tripping characteristic one of the four following possibilities are displayed Definite time characteristics Definite time earth fault current protectio...

Page 37: ...ssword_ _xxxx_ To activate a new password the existing one has to be entered first _1st_input______ _Password _xxxx_ The new password can be entered by push buttons SELECT RESET ENTER and The place fo...

Page 38: ...e procedure applies for setting the time Parameter Time____11 56 08 6 6 5 Rated frequency setting The adapted FFT algorithm requires the rated frequency of the object to be protected as a parameter fo...

Page 39: ...version a respective note can be found in the index Software_Version V02 1 00________ 6 7 Tripping method Relay matrix 6 7 1 Reset Here we have to distinguish whether the LED and the bistable relay 1...

Page 40: ...e trip indication function of the LED TRIP can be de activated TRIP LED Flashing______ The LED reset can be done by activating the reset function please refer to chapter 6 9 6 7 5 Relay matrix only re...

Page 41: ...element and if available earth fault overcurrent and high set element 6 9 Reset There are four possibilities for resetting the WIP1 as well as the relay 1 latched The parameter setting mode under menu...

Page 42: ...lt memory that is displayed upon activation of the relay by the transducer current but the date and time External reset Applying voltage resets the signal relay and extinguishes the LED The Display re...

Page 43: ...ts are connected correctly 7 1 Checking the set values Pressing the DISPLAY ON push button activates the display By repeatedly pressing the push button SELECT RESET all relay set values may be checked...

Page 44: ...44 7 2 2 Example of test circuit For testing WIP1 only current input signals are required Figure 6 1 shows a simple example of a single phase test circuit with adjustable current energizing the WIP1...

Page 45: ...and the display shows PROTECTION SETTINGS After entering the correct password the trip mode starts upon the following inputs TEST_CURRENT SET_TO_ 1Amp When 1 A is reached test of the relay begins The...

Page 46: ...has been pressed the alarm relay and self test relay are de energized and the LED should extinguish Test_current switch off The WIP1 indicates disconnection of the test current by the following messag...

Page 47: ...current to a value corresponding to twice the operating value and inject the current in stantaneously The operating time measured by the timer should have a deviation of less than 3 of the set value...

Page 48: ...ble overcurrent threshold and an auxiliary voltage 110 V DC is supplied to the terminals 32 and 33 tripping takes place in stantaneously tl 50 ms 10 ms 7 2 9 Remote trip Checking the input Remote trip...

Page 49: ...cating the year might perhaps show un defined values In cases the error memory fails and the energizing time has perhaps elapsed the following text is displayed Loss_of_Data Press_Reset The informatio...

Page 50: ...e usually limited to very important protective relays in the power system Because of its powerful combined indicating and measuring functions the WIP1 relay may be tested in the manner of a primary in...

Page 51: ...o years for maintenance will therefore be recommended During a maintenance test the relay functions including the operating values and relay tripping characteris tics as well as the operating times sh...

Page 52: ...entire equipment is dead according to the WARNING safety instructions above 2 Open the Front Cover with a fully isolated screw driver Do not use force 3 Carefully remove the battery by means of a ful...

Page 53: ...Manual WIP1 GB Woodward DOK TD WIP1 Rev F 53 4 Close the front cover again The waste disposal of the removed battery has to be compliant with local laws and standards...

Page 54: ...Power consumption 1 mA DC or 6 mA AC Max voltage 270 V AC or 360 V DC continuously Electro pulse output circuit Tripping Recurring cycle with 8 pulses of 150 ms each For currents 12A AC 10 the trip e...

Page 55: ...Ohmic Load cos 1 Inductive Load cos 0 4 L R 7 ms Rated load 250 VAC 16 A 400 VAC 7 A 30 VDC 16 A 250 VAC 8 A 400 VAC 3 5 A 30 VDC 8 A Making current 16 A Max contact voltage 400 VAC 125 DC Max contac...

Page 56: ...rame as per EN 60255 6 and IEC 255 22 1 2 5 kV 1MHz Electrostatic discharge ESD test as per EN 61000 4 2 and IEC 255 22 1 8 kV air discharge 6 kV contact discharge Electrical fast transient Burst test...

Page 57: ...ngs with increased trip delays up to 50 ms If a C T current 0 5 A was present before tripping the trip delay decreases about 20 ms Setting range Step Tolerance IE 0 05 2 0 A EXIT 0 001 0 002 0 005 0 0...

Page 58: ...haracteristics acc to IEC 255 4 for phase and earth current element Normal Inverse Type A 0 14 1 Very Inverse Type B 13 5 1 Extremely Inverse Type C 80 1 Long Time Inverse 120 1 RI Inverse Time 1 0 33...

Page 59: ...WIP1 GB Woodward DOK TD WIP1 Rev F 59 Tripping characteristic for phase current element X 2 Tripping delay 100 X 2 5 Tripping delay 100 X 3 Tripping delay 100 X 3 5 Tripping delay 100 X 4 Tripping del...

Page 60: ...characteristic Figure 9 2 Very inverse tripping characteristic 1 2 3 4 5 6 7 8 910 20 I IS 0 1 1 10 100 1000 t s tI 0 1 0 2 0 3 0 4 0 5 0 6 0 8 1 0 1 4 2 0 3 0 4 0 6 0 8 0 10 0 0 05 1 2 3 4 5 6 7 8 9...

Page 61: ...Figure 9 4 Long Time Inverse 1 2 3 4 5 6 7 8 910 20 I IS 0 01 0 1 1 10 100 1000 10000 t s tI 0 3 0 4 0 5 0 6 0 8 1 0 1 4 2 0 3 0 4 0 6 0 8 0 10 0 0 05 0 05 0 1 0 1 0 2 0 2 1 2 3 4 5 6 7 8 910 20 I IS...

Page 62: ...Definite time tripping characteristic 1 2 3 4 5 6 7 8 910 20 I IS 0 1 1 10 100 t s tI 10 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 05 1 10 I IN 0 01 0 1 1 10 100 t s I I tI t...

Page 63: ...istic Figure 9 8 x 2 5 tripping characteristic 1 2 3 4 5 6 7 8 910 20 I IS 0 01 0 1 1 10 100 1000 t s 0 1 0 1 1 0 10 0 2 0 3 0 4 0 6 1 4 2 0 3 0 4 0 6 0 8 0 0 8 1 2 3 4 5 6 7 8 910 20 I IS 0 01 0 1 1...

Page 64: ...igure 9 10 x 3 5 tripping characteristic 1 2 3 4 5 6 7 8 910 20 I IS 0 01 0 1 1 10 100 1000 t s 0 1 0 1 1 0 10 0 2 0 2 0 3 0 3 0 4 0 6 0 8 1 4 2 0 3 0 4 0 6 0 8 0 1 2 3 4 5 6 7 8 910 20 I IS 0 01 0 1...

Page 65: ...rrent setting with short circuit function and limiting the tripping characteristic 1 2 3 4 5 6 7 8 910 20 I IS 0 01 0 1 1 10 100 1000 t s 0 1 0 1 1 0 10 0 2 0 2 0 3 0 4 0 6 0 8 1 4 2 0 3 0 4 0 6 0 8 0...

Page 66: ...Manual WIP1 GB Woodward DOK TD WIP1 Rev F 66 Figure 9 13 Trip example...

Page 67: ...c to DIN EN 50022 The front plate of the relay is protected with a sealable transparent cover IP40 Figure 9 14 Dimensions WIP1 in mm Connection terminals The connection of up to a maximum of 2 x 2 5 m...

Page 68: ...anel cut out 31 x 20 mm violet 0 25mm violett 0 25mm brown 0 25mm braun 0 25mm orange 0 25mm orange 0 25mm weiss 0 50mm white 0 50mm green 0 50mm gr n 0 50mm red 0 50mm rot 0 50mm back 0 50mm schwarz...

Page 69: ...current measuring IE IE Rated current 1A Standard PRO OPEN DATA Protocol Communication with MODBUS RTU Protocol Possible with interface only M Please leave box empty if option is not desired 1 The po...

Page 70: ...r Unit Default setting Actual setting WIP 11 WIP 12 WIP 13 Overcurrent pickup value A 0 5 X X X Selection of tripping characteristic phase current element Definite Time X X X Overcurrent trip delay s...

Page 71: ...Trip YES X X X Short circuit I Alarm No X X Short circuit I Trip YES X X X Earth fault overcurrent IE Alarm No X X Earth fault overcurrent IE Trip YES X X X Earth short circuit IE Alarm No X X Earth...

Page 72: ...Manual WIP1 GB Woodward DOK TD WIP1 Rev F 72 AvK Generatory s r o ul 4 kvetna 175 755 01 Vset n Internet www woodward seg cz info woodward seg cz Tel 420 571 413 322...

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