User Manual - Emco Electronics
Contents
1. Lower pulse to the follower Transformer Select AVR1 as Follower 8 AVR2 as Master When the AVR2 master gives Raise Lower pulses the same is directed to OLTC2 without any delay After the set delay on the front panel of PCU is over if there is a difference in the Tap nos of the 2 transformers the PCU gives a Raise Lower pulse to the follower Transformer 1 When both AVR1 amp AVR2 are selected as followers the PCU is blocked i e no output pulses are available from the PCU amp Out of step indication is also blocked Incase of any mal operation if the tap nos of both the transformers are not equal for more than 5 minutes Out of Step indication is given and a pair of NO contacts will close on terminal block Out of Step indication is available only for Master Follower mode The PCU is internally blocked for Min Max taps at positions 2 amp 16 respectively i e no further Lower pulse can be given when tap 2 is reached amp no further Raise pulse is given when tap 16 is reached Incase the wipers of TPls is open 00 is displayed Incase the master TPI s wiper is open then the PCU is blocked i e no Raise Lower pulses are given amp out of step indication is given after 5 minutes Incase follower TPI s wiper is open pulses are given to the master only However if both the TPIs are open the PCU is blocked and no out of step indication occurs The delay T2 setting for consecutive pulses on the master AVR should be gre2. Coupler Input NO potential free contacts from Bus Coupler Outputs Raise Lower Pulses to OLTCs 2 seconds ON duration with LED indication 1 pair of NO contacts each for Raise amp Lower for both the Transformers with 5A 115VAC or 24VDC Out of step condition LED indication with 1 pair of NO contacts of same rating Bus Coupler Output l NO potential free contacts for indicating Bus Coupler closure 4 20mA outputs for TPIs i 4 20mA DC output with 100w termination for both the TPIs lll FRONT PANEL INDICATIONS CONTROLS INDICATIONS Refer Drg No 07 ED 02 1 TAP No 1 Displays the Tap position of Transformer 2 TAP No 2 i Displays the Tap position of Transformer2 3 SW1 Selects AVR1 as Master Follower In position AVRI is selected as Follower 4 SW2 Selects AVR2 as Master Follower In position AVR2 is selected as Follower When both the Switches are in position both the Transformers are independent When both the Switches are in position the PCU is blocked i e no Raise Lower pulses are given from the PCU 5 TIME DELAY Delay between the Master and Follower Pulses settable from 10 to 150 seconds 6 RR1 LED 7 LR1 LED 8 RR2 LED 9 LR2 LED 10 Out of Step LED 17 MAN LED 18 Parallel Mode LED REAR PANEL FUSE Auxiliary Fuse Indicates output Raise pulse given to OLTC1 Indicates output Lower pulse given to OLTC1 Indicates output Raise pulse given to OLTC2
3. of both the Transformers are displayed on the PCU When the master AVR gives either Raise Lower Pulse to the transformer the tap numbers are compared after some delay amp if there is a difference in the tap nunbers the Raise Lower pulse is given to the follower Incase the tap position of the 2 transformers in parallel are unequal for 5 minutes out of step indication is given amp both OLTCs are blocked External A M Switch NO contacts are sensed for determining Auto Manual mode of operation When manual mode is selected the PCU is blocked i e no output pulses are given to the OLTCs The PCU is also blocked when both the AVRs are set in follower mode II TECHNICAL SPECIFICATIONS Auxiliary Supply 110V 230V AC 5OHz 15 15VA Maximum Tap No of i 21 to be specified in PO amp Transformers should be the same for both transformers Time Delay between Master Settable between 10 to 150 secs amp Follower Pulse Mode of Operation Selected through Front Panel Switches 7 Independent AVRs AVR1 Master AVR2 Follower AVR1 Follower AVR2 Master PCU blocked Overall Size 92mmX 192mm X 220mm HXWXD Panel Cutout gt 90mm X 184mm H X W Inputs Auto Manual S External NO potential free contacts Raise amp Lower Input Pulses l NO potential free contacts from AVR1 8 AVR2 Tap Position Indicators l 3 wires from Resistor Chain Max Wiper Min with 1Kw step from both OLTCs Bus
4. E APPR BY DRN BY ISISE DATE 30 06 05 DRG No 07 ED 03 ISS 1 DOC NO DCOO 405 ISS 1 VI WARRANTY This product from EMCO ELECTRONICS is warranted against defects in materials and workmanship for a period of 12 months from the date of despatch to the first buyer purchaser of this equipment this being essentially limited by warranties given to EMCO ELECTRONICS on the component used in equipment During the warranty period EMCO ELECTRONICS will at its option either repair or replace the product which prove to be defective provided the product has been used with reasonable care and in accordance with the manuals product specification Consequently this warranty shall also not apply to defects damages in transit or resulting from misbehaving misuse unauthorised modifications or repairs operations outside the environmental electrical and or other specification improper or inadequate maintenance of the product or site conditions as required recommended and damages arising from accidental or abnormal causes The warranty period for items repaired replaced shall not exceed the period for which the equipment was originaliy warranted and also the liability of EMCO ELECTRONICS to the purchaser shall not in any case exceed the original purchase price of the equipment For warranty service or repair the equipment must be returned to EMCO ELECTRONICS securely packed on Frieght paid basis and accompanied by a certificate stating that the equipm
5. EMGO ELECTRONICS ISO 9001 2000 COMPANV Parallel Control Unit EE 501 INSTRUCTION MANUAL Instruction Manual for Parallel Control Unit Tvpe EE 501 EMCO ELECTRONICS Works Unit No 13 Kedarnath Tungareshwar Industrial Complex No 1 Village Sativali Vasai E Dist Thane 401208 Tel 0250 2481783 1804 Fax 0250 2481087 Email mumbai emcoelectronics org Office 302 Vasan Udyog Bhavan Sanapati Bapat Marg Opp Phoenix mill Big Bazar Lower Parel W Mumbai 400 013 Tel 022 24902283 249231 83 Fax 91 022 24951024 E mail office emcoelectronics org 15 Wood Street 1st Floor Richmond Road Bangalore 560 025 Tel 080 557 0215 Fax 91 80 556 6606 E mail emcoblr bgl vsnl net in MK 07 702 ISS 1 CONTENTS TITLE PAGE No GENERAL DESCRIPTION TECHNICAL SPECIFICATIONS FRONT PANEL INDICATIONS CONTROLS OPERATING PROCEDURE LIST OF DRAWINGS WARRANTY I GENERAL DESCRIPTION The Parallel Control Unit PCU is used for controlling 2 Transformers in parallel The transformers have to be identical i e with the same number of taps Raise amp Lower NO contacts from AVR1 amp AVR2 are connected to the PCU amp the outputs from the PCU are connected to the OLTC1 amp OLTC2 respectively Switches on the front panel of PCU allows for selecting AVR1 or AVR2 as master amp the other as the follower or both AVRs as independent masters Tap Position
6. Indicates output Lower pulse given to OLTC2 Indicates out of step condition i e Tap Nos of both Transformers are not equal for 5 minutes Indicates Manual mode of operation External A M Switch NO contacts when closed the Manual mode is selected All output pulses from the PCU are blocked in Manual mode Indicates Parallel mode of operation When the Bus Coupler is closed a pair of NO contacts is sensed and the indicator glows after a delay of 60 secs 300 mA REAR PANEL CONNECTIONS Refer Drg No 07 ED 03 11 12 13 14 15 16 17 18 Auxiliary Supply 110V 230VAC 50Hz NO contacts of Lower pulse from AVR1 NO contacts of Raise pulse from AVR1 NO contacts of Lower pulse from AVR2 NO contacts of Raise pulse from AVR2 Tap position of Transformer1 w Tap position of Transformer2 w External A M Switch NO potential free contacts 19 20 NO Contacts for Lower Pulse to OLTC1 21 22 NO Contacts for Raise Pulse to OLTC1 23 24 A NO Contacts for Lower Pulse to OLTC2 25 26 NO Contacts for Raise Pulse to OLTC2 27 28 NO Contacts for Out of step condition 29 30 i 4 20 mA output for Tap No of Transformer1 31 32 4 20 mA output for Tap No of Transformer2 33 34 NO Contacts Input from Bus Coupler 35 36 NO Contacts Output for indicating Parallel Mode OPERATING PROCEDURE Connect the Auxilliary Supply 110 230V AC to pins 1 amp 2 of Terminal Block Connect
7. OO 606 AUX FUSE Q EMCO ELECTRONICS Sativali Vasai East Thane 401 208 Tel 0250 2481783 1804 Model EE 501 Sr No HT Power 110V 230V 50Hz 10 Watts 1 2 AUXVP 7 8 LR2 AVR2 14 15 16 TPI2 w 21 22 RR1 OLTC1 27 28 OFS NO 33 34 BCP I P NO 3 4 LR1 AVR1 19 10 RR2 AVR2 f17 18 A M I P NO 23 24 LR2 OLTC2 29 30 TPI1 4 20mA 35 36 BCP O P NO 5 6 RR1 AVR1 111 12 13 TPI1 w 19 20 LR1 OLTC1 f25 26 RR2 OLTC2 31 32 TP12 4 20mA TERMINAL BLOCK CONNECTIONS PANEL CUT OUT 90 X 184mm PIN Nos INPUTS PIN Nos OUTPUTS 1 2 AUX I P 19 20 LR1 NO to OLTC1 3 4 LR1 NO from AVR1 21 22 RR1 NO to OLTC1 5 6 RR1 NO from AVR1 23 24 LR2 NO to OLTC2 7 8 LR2 NO from AVR2 25 26 RR2 NO to OLTC2 9 10 RR2 NO from AVR2 27 28 OUT OF STEP NO 11 12 13 TPI1 W 29 30 A 20 mA TPI 1 14 15 16 TPI2 W 31 32 4 20 mA TPI 2 17 18 A MSW NO 35 36 BUS CPL O P NO 33 34 BUS CPL I P NO 4 ALL DIMENSIONS ARE IN mm UNLESS STATED OTHERWISE 3 PRODUCT EE 501 EMCO ELECTRONICS A ASSEMBLY TITLE REAR PANEL CONNECTIONS R MATERIAL _ SCALE 1 1 AND PANEL CUTOUT Iss DAT
8. ater than the delay setting on the PCU so that the second pulse comes after the follower has completed a tap change Incase a second pulse comes before the follower has changed then this pulse is ignored 14 Putthe external Auto Manual Switch in Manual mode No output pulses are available from the PCU amp out of step indication is also blocked Note Incase PCU is not in use the NO contacts of AVR1 A AVR2 which have been wired to the PCU should be disconnected from the PCU if the same contacts are to be used for driving the tap changers V LIST OF DRAWINGS Front Panel Drg No 07 ED 02 Rear Panel Connections amp Panel Cutout Drg No 07 ED 03 FOR TOLERANCES NOT SPECIFIED REFER DIMENSION TOLERANCE CHART PDOO 606 LR2 RR2 EES TAP No 2 PARALLEL MODE O MANUAL FOLLOWER e 90 se FOLLOWER 0 1 vu XX AVR2 S S 150 MASTER MASTER TIME S DELAY PARALLEL CONTROL UNIT EE 501 AVR1 30 1 4 ALL DIMENSIONS ARE IN mm UNLESS STATED OTHERWISE 3 PRODUCT PCU EE 501 EMCO ELECTRONICS 2 ASSEMBLY 7 TITLE FRONT PANEL 1 MATERIAL POLYCARBONATE SCALE 1 1 Iss DATE APPR BY DRN BY J J P DATE 30 06 05 DRG No 07 ED 02 ISS DOC NO DCOO 405 1ISS 1 FOR TOLERANCES NOT SPECIFIED REFER DIMENSION TOLERANCE CHART PD
9. ent is being returned for warranty repairs and also a note giving details of the purchase Purchaser s Name and address invoice No and Date of purchase and details of the equipment failure fault conditions other useful information to fasciliate early repair rectification of the equipment Return of equipment duly repaired can be arranged on payment of the packing and forwarding charges together with any other taxes duties other miscellaneous expenses incurred altematively the purchaser may arrange to collect the equipment from EMCO ELECTRONICS In case the repairs are not covered under warranty the charges tor the same must also be paid before collection of the equipment Our engineer s services are available at site for instruments during warranty or out of warranty period on chargeable basis details of which are available on request In the interest of development and improvement EMCO ELECTRONICS reserve the right to amend without notice details contained in this publication No legal liabilities willbe accepted by EMCO ELECTRONICS for any errors omissions or amendments
10. the Raise Lower NO Contacts from AVR1 amp AVR2 to respective pins 3 to 10 of Terminal Block Connect Tap Indicator wires from OLTC1 amp 2 to respective pins 11 to 16 of Terminal Block Connect NO contacts of External A M Switch to pins 17 amp 18 of terminal block Connect NO contacts input from Bus Coupler to pins 33 amp 34 of terminal block Connect output Raise Lower NO Contacts to OLTC1 amp 2 respectively pins 19 to 26 Switch ON the Parallel Control Unit Select Manual mode through External A M Switch Bring both the transformers to equal tap position Put the A M Switch back to Auto mode Independent Mode of operation Select both AVR1 amp AVR2 as Masters i e both Front Panel Switches in position Independent mode When a Raise Lower pulse comes from AVR1 AVR2 the same is directed to OLTC1 OLTC2 without any delay Parallel Mode of operation When the Master Follower mode is selected and the 2 tap nos are not equal the PCU automatically gives pulses to the Follower after the set delay is over till the Follower Tap No is equal to the Master The delay between the pulses is equal to the Set Time Delay Select AVR1 as Master 8 AVR2 as Follower When the AVR1 master gives Raise Lower pulses the same is directed to OLTC1 without anv delav After the set delav on the front panel of PCU is over if there is a difference in the Tap nos of the 2 transformers the PCU gives a Raise
Download Pdf Manuals
Related Search