Vishay Electronic GmbH Hofmark-Aich-Str.36 D-84030 Landshut Telefon +49 871 86-0 www.vishay.com Document number: 13173 - Rev. 02 _________________________________________________________________________________________________________ Capacitor protection relay ESTAsym MD Operating instructions QUALITY MANAGEMENT Certified by VDE according to DIN EN ISO 9001 Reg. No. 2556/QM/03.94 ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 2 of 50 Revision history Date Name Revision Change 25.08.11 drt 00 initial document release 20.12.11 brm 01 update of content 07.05.12 fez 02 corrections ESTAsym MD Operating instructions Doc.No.: 13173 - Rev. 02 Page 3 of 50 Content 1 Characteristics ......................................................................................................................................... 4 2 Description of function ............................................................................................................................. 4 2.1 Capacitor Unbalance Protection ......................................................................................................... 4 2.2 Line Current Unbalance Protection ..................................................................................................... 4 2.3 Overvoltage Protection ........................................................................................................................ 4 2.4 Overheating Protection ....................................................................................................................... 5 2.5 Ground Fault Protection ...................................................................................................................... 5 2.6 Fundamental Harmonic Overcurrent Protection ................................................................................. 5 2.7 RMS – overcurrent Protection ............................................................................................................. 5 2.8 Undercurrent Protection ...................................................................................................................... 5 2.9 Capacitor Bank Discharge Timer ........................................................................................................ 6 3 Matching of protective function ................................................................................................................ 7 4 Block diagram ESTAsym MD .................................................................................................................. 8 5 Current inputs .......................................................................................................................................... 9 6 Optron inputs ........................................................................................................................................... 9 7 LCD display ........................................................................................................................................... 10 8 Keypad .................................................................................................................................................. 10 9 Relay outputs ......................................................................................................................................... 10 10 LED indicators ....................................................................................................................................... 10 11 Boot– Loader Software update.............................................................................................................. 13 12 Settings .................................................................................................................................................. 20 12.1 Example of parameter setting ESTAsym MD ................................................................................ 22 12.2 Setting parameter through PC screen ........................................................................................... 23 13 Display menu ......................................................................................................................................... 30 14 Technical data ....................................................................................................................................... 45 15 Immunity tests ....................................................................................................................................... 46 16 Dimensions and cut-out details ............................................................................................................. 48 17 Times of warning and tripping for the overheating protection ............................................................... 49 18 Times of tripping for Overvoltage protection ......................................................................................... 49 ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 4 of 50 1 Characteristics The microprocessor-based capacitor protection relay ESTAsym MD is a versatile integrated current measuring multi-function relay design, to be used for the protection of medium and high voltage capacitor banks. Through the use of FFT techniques the ESTAsym MD extracts from measured line and unbalance currents the currents of fundamental frequency and harmonics currents. From this results are calculated the values used for the individual protective functions. The capacitor protection relay can be used especially in capacitor banks connected in double wye and H configuration. Protective functions provided by the ESTAsym MD are the following: - Capacitor unbalance protection - Line current unbalance protection - Overvoltage protection - Overheating protection - Ground fault protection - Fundamental harmonic and RMS - overcurrent protection - Undercurrent protection - Capacitor bank discharge timer 2 Description of function 2.1 Capacitor Unbalance Protection The protection measures fundamental frequency of the natural unbalance current of capacitor bank and compensates it for both amplitude and phase to zero, to enable detection of further changes, in both amplitude and phase angel. Phase current input IL1 is used as synchronizing input for the compensation. The phase angel indicates the leg in which the change in capacitance has occurred. The indication of failed leg depends of the fact whether the capacitors have element fuses or not (Fig. 6 and 7). The protection has two-stages, warning and tripping, both with adjustable definite timer. A trip signal is output if associated threshold is exceeded for the definite time set. ESTAsym MD compares the stored unbalance value with present phase-current. 2.2 Line Current Unbalance Protection The protection calculates the fundamental frequency line current unbalance due to faults or failures within the capacitor bank. The line current unbalance is calculated from 3-phase line currents. The protection includes two-stages, warning and tripping, both with adjustable definite timer. A trip signal is output if value of the line unbalance current exceeds the selected set point value for the definite time. 2.3 Overvoltage Protection ESTAsym MD Operating instructions Doc.No.: 13173 - Rev. 02 Page 5 of 50 The purpose of the overvoltage protection is to protect the capacitor bank against overload due to fundamental and harmonics currents, which may lead to dielectric breakdown, i.e. short-circuit in a capacitor element. The capacitor bank voltage is calculated from 3-phase line fundamental frequency component current and from harmonic currents. Overvoltage factor is calculated and continuously compared with a variable threshold. It is possible to choose between definite time characteristic and an inverse time characteristic according to ANSI–curve. A trip signal is output if the set point value is exceeded for the definite time. 2.4 Overheating Protection Overheating protection stage is intended to be used for protection of serial reactance coils used within capacitor banks. This protection is based on measuring the RMS 3-phase line currents and comparing them with an adjustable threshold. The protection has either two stages, warning and tripping, both with adjustable definite-time delay, or it is possible to select tripping time depending on the ratio of the actual current to the nominal current. Warning time is half of tripping time. If the current exceeds the relevant set point value for the definite-time delay, tripping or warning signal is output. The protection has two ANSI modes and tripping time adjusting. 2.5 Ground Fault Protection The protection calculates the fundamental frequency ground fault current, as the value of the vector sum of the 3-phase line currents. The protection has two-stages, warning and tripping, both with adjustable definite time. A trip signal is output if amplitude of the ground fault current exceeds the selected set point value for the definite time. 2.6 Fundamental Harmonic Overcurrent Protection The protection stage is measuring the fundamental frequency of 3-phase currents and comparing them with an adjustable threshold. This function may be used for short circuit protection. A trip signal is output if the value of the line current exceeds the selected set point value for the definite time. The protection has two adjustable threshold values, each with separately adjustable time delay. 2.7 RMS – overcurrent Protection The protection calculates RMS value of 3-phase currents and comparing them with an adjustable threshold. The protection has two adjustable threshold values, each with separately adjustable time delay. 2.8 Undercurrent Protection ESTAsym MD Operating instructions Doc.No.: 13173 - Rev. 02 Page 6 of 50 The undercurrent protection is intended for the detection of capacitor bank disconnection. In case of voltage loss in the feeding bus, the capacitor bank has to be disconnected from the system to prevent reapplication of the voltage on the capacitors before they are fully discharged. The stage starts when one of the three phase currents falls below the set level. If the undercurrent condition persists for a time longer than the set operating time, the trip signal is output. The auxiliary contact of circuit breaker signals to ESTAsym MD if the circuit breaker is off or a black-out occurred. The blocking-relay contact operates together with the tripping contact. The closure time of blocking relay is given by the preset blocking time. 2.9 Capacitor Bank Discharge Timer The relay includes an adjustable timer, started by the circuit breaker auxiliary contacts, which blocks the breaker reclosing until the capacitor bank is discharged to an acceptable voltage level for switching in. ESTAsym MD has an auxiliary contact for this purpose. It is possible to adjust the timer from 2s to 10 min step 1s. ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 7 of 50 3 Matching of protective function Block or release of protection functions: By clicking the fields Enabled in the parameterization program it is possible to enable or disable individual protection functions. Matching of protective function Connection of capacitor bank Double wye with reactors Protective function Capacitor unbalance protection Line current unbalance protection Overvoltage protection Overheating protection Ground fault protection Fundamental harmonic overcurrent protection RMS - overcurrent protection Undercurrent protection Capacitor bank discharge timer Double wye without reactors Capacitor unbalance protection Line current unbalance protection Overvoltage protection Ground fault protection Fundamental harmonic overcurrent protection RMS - overcurrent protection Undercurrent protection Capacitor bank discharge timer H3- Bridge with and without reactors Capacitor unbalance protection Capacitor bank discharge timer H1- Bridge with reactors Capacitor unbalance protection Overvoltage protection Overheating protection Fundamental harmonic overcurrent protection RMS - overcurrent protection Undercurrent protection Capacitor bank discharge timer H1- Bridge without reactors Capacitor unbalance protection Overvoltage protection Fundamental harmonic overcurrent protection RMS - overcurrent protection Undercurrent protection Capacitor bank discharge timer Triple double wye Capacitor unbalance protection Capacitor bank discharge timer ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 8 of 50 4 Block diagram ESTAsym MD Power Alarm Trip Display Error INPUT CURRENT 13 14 2 0 3 15 16 17 6 18 19 20 9 21 22 23 1 A (5 A) 5 0 INPUT CURRENT INPUT CURRENT INPUT CURRENT 1 A (5 A) 8 0 1 A (5 A) 11 0 12 24 25 26 1 A (5 A) µC POWER P 50 N(-) 51 L(+) 52 27 28 29 ~ Relay 1 Relay 2 Relay 3 Relay 4 Relay 5 Relay 6 30 31 Keypad OPT 1 32 Esc 33 OPT 2 34 35 OPT 3 36 B A PC in / output Fig.1 Block diagram ESTAsym MD RxD DSR TxD DTR GND 37 OPT 4 38 (-) 39 40 RS 485 41 42 43 44 45 RS 232 ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 9 of 50 5 Current inputs Four current inputs are provided within ESTAsym MD. Each can be parameterized to 1A or 5A. Matching of inputs Connection of capacitor bank Inputs Double wye Input 1 – Line current L1 Input 2 – Line current L2 Input 3 – Line current L3 Input 4 – Unbalance current H- Bridge; Triple double wye Input 1 – Line current L1 Input 2 – Unbalance current 1 Input 3 – Unbalance current 2 Input 4 – Unbalance current 3 For phase currents, the current transformer ratio can be set to 10-3000/1A or /5A. The device evaluates phase currents up to 6000A. The transforming ratio for unbalance current can be set to 1-100/1A or /5A. 6 Optron inputs The OPT 1 and OPT 2 are used for Capacitor Bank Discharge Timer. This function is started by the circuit breaker auxiliary contact wired to one of Optron inputs. OPT 3 and 4 are reserve. Input voltage can be in the range from 20 to 220 V DC. Circuit breaker ESTAsym MD OFF ON + = Fig.2 Wiring of optocouplers 31 32 33 34 38 OPT1 OPT2 (-) ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 10 of 50 7 LCD display Two lines, 16 character and full alpha-numeric LCD display (Fig.3) is provided on the front panel for the following purposes: - During normal relay operation: Display of various measured parameters together with the threshold and times associated with these parameters - During relay configuration: Interactive configuration of protection relay - After warning or tripping: Recording of fault currents and voltages at the instant of warning or tripping 8 Keypad A six button key-pad is provided on the front panel (Fig.3) of relay for the following purposes: - Interactive configuration of the protection relay - Acknowledgement and resetting of trip conditions 9 Relay outputs ESTAsym MD has six relay outputs: - Relay 1, 2, 3, 4 and 6: optional protection function - Relay 5 is self-monitoringsupervision relay The user may program the relays to be manual or self-resetting, and to be normally energized or deenergized during the power-up healthy condition. All output relays have a full change – over contact. All N/O and N/C contact are permanently wired to the terminal block. 10 LED indicators Four LED indicators are provided on the front panel (Fig.3) of relay, as follow: - Green LED – Power ON /Healthy, this indicates that the auxiliary power supply is on - Red LED – Warning, this indicates that the threshold values for warning (is) are exceeded ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions - Red LED – Trip – this indicates that the threshold values for tripping (is) are exceeded - Red LED – Error – this indicates fault of protection relay Fig.3 Front panel ESTAsym MD Page 11 of 50 ESTAsym MD Operating instructions Fig.4 Rear panel Doc.No.: 13173 - Rev. 02 Page 12 of 50 ESTAsym MD Operating instructions Doc.No.: 13173 - Rev. 02 Page 13 of 50 11 Boot– Loader Software update Boot–Loader is means for updating ESTAsym MD software using RS232 interface. This function is provided only by the producer. ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 14 of 50 12 Settings Parameter setting ESTAsym MD Protection Capacitor unbalance Line current unbalance Overvoltage Parameter Setting range Warning threshold Iu 0,1 -100A Delay 0,1 - 6 s Tripping threshold Iu 0,1 -100A Delay 0,1 - 6 s Lower threshold Iu Iu 0,01 – 1 A Lower threshold IL1 in A, (5% - 30%)IL1 Warning threshold 1 - 30% In Delay 0,3 – 6s Tripping threshold 2 - 30% In Delay 0,3 – 6s Nominal current In 10 - 3000A IEC(ANSI): Overvoltage factor 0,8; 0,9; 1,0; 1,10; 1,25; 1,50 Phase capacitance 1 - 6400 µF Nominal voltage (Line to Line) 2 - 450 kV Set time: Overvoltage factor 0,8 – 2,0 Delay 0,1 - 6 s Overheating Nominal voltage (Line to Line) 2 - 450 kV Warning threshold 10 - 6000 A Tripping threshold 10 - 6000 A Set time on: Delay warning 1 - 7200 s Delay tripping 1 - 7200 s Set time off: The time sink with the ratio actual current/nominal current. Warning time is always a half of tripping time Ground fault Warning threshold 1 - 30% In Delay 0,3 – 6 s Tripping threshold 1 - 30% In Delay 0,3 – 6 s Nominal current In 10 – 3000 A Tripping threshold 10 – 6000 A Delay 0,1 - 6 s RMS – overcurrent protection Tripping threshold 10 – 6000 A Delay 0,3 - 6 s Undercurrent Tripping threshold 10 – 3000 A Delay 0,3 - 6 s Fundamental harmonic overcurrent protection Capacitor bank discharge timer Delay from 2s to 10min step 1s ESTAsym MD Operating instructions Doc.No.: 13173 - Rev. 02 Page 15 of 50 Legend: - Lower threshold I u: The minimum value of unbalance current for compensation natural unbalances current. For the current input 1A Iu = 5mA, for 5A Iu = 25mA (value of secondary CT winding). - Lower threshold I L1: The minimum value of phase L1 current that the protection relay accepts. The values are the same as by Iu. - Overheating – set Time: If inactive - the tripping time depends on the ratio actual current/nominal current. - All current values refer to the primary side of current transformers. - All parameters of all functions are compared with each other to provide reliable operation of protection. - With regard to network voltage fluctuation are the adjusted thresholds for Warning (IW) and Tripping ´ ´ (IT) recalculated to values I W or I T according to following equation: I´W(T) = 0.8*IW(T) ….… für (IL1/IN) ≤ 0,8; I´W(T) = (IL1/IN)*IW(T) … für 0,8 < (IL1/IN) < 1,2; I´W(T) = 1.2*IW(T) ….… für (IL1/IN) > 1,2. ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Fig. 5a Page 16 of 50 Capacitor bank in H-Bridge with failure L 2(l) K 3(k) ESTA Sym MD CLb CLa L K 11(l) 12(k) ESTA Sym MD CLc φun CLd 1.) Failed element in the capacitor unit with element fuses Phase angel Faulty capacitor unit φunb 0° C La or CLd 180° C Lc or CLb 2.) Failed element in the capacitor unit without element fuses Phase angel Faulty capacitor unit φunb 0° C Lc or CLb 180° C La or CLd ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Fig. 5b Page 17 of 50 Capacitor bank in 3H-Bridge with failure L 2(l) L1 K 3(k) L2 ESTA Sym MD L3 CL1b CL1a L K 5(l) CL1c CL2b CL2a L 6(k) ESTA Sym MD φun K 8(l) CL1d CL2c CL3b CL3a L 9(k) ESTA Sym MD φun 11(l) CL2d CL3c Faulty capacitor unit φunb 0° C L1a or CL1d 60° C L3c or CL3b 120° C L2a or CL2d 180° C L1c or CL1b 240° C L3a or CL3d 300° C L2c or CL2b 2.) Failed element in the capacitor unit without element fuses Phase angel Faulty capacitor unit φunb 0° 60° 120° 180° 240° 300° C L1c or CL1b C L3a or CL3d C L2c or CL2b C L1a or CL1d C L3c or CL3b C L2a or CL2d 12(k) ESTA Sym MD 1.) Failed element in the capacitor unit with element fuses Phase angel K φun CL3d ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Fig. 6a Page 18 of 50 CAPACITOR BANK IN DOUBLE WYE WITH FAILURE L CL1a L CL2a CL3a 2(l) CL1b K L1 3(k) ESTA Sym MD K 11(l) CL2b 12(k) ESTA Sym MD CL3b φun L 5(l) K L2 6(k) ESTA Sym MD L 8(l) K 9(k) ESTA Sym MD 1.) Failed element in the capacitor unit with element fuses Phase angel φunb Faulty capacitor unit 0° 60° 120° 180° 240° 300° C L1b C L3a C L2b C L1a C L3b C L2a 2.) Failed element in the capacitor unit without element fuses Phase angel φunb Faulty capacitor unit 0° 60° 120° 180° 240° 300° C L1a C L3b C L2a C L1b C L3a C L2b L3 ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Fig. 6b Page 19 of 50 CAPACITOR BANK IN TRIPLE DOUBLE WYE WITH FAILURE L CL1a CL1b L CL2a L1 3(k) ESTA Sym MD K 5(l) CL2b 6(k) ESTA Sym MD CL3a 2(l) K φun CL3b L2 L3 CL1a CL1b L CL2a K 8(l) CL3a CL2b 9(k) ESTA Sym MD φun CL3b CL1a CL1b L CL2a CL3a K 11(l) CL2b 12(k) ESTA Sym MD φun CL3b ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions 1.) Failed element in the capacitor unit with element fuses Phase angel φunb Faulty capacitor unit 0° C L1b 60° C L3a 120° C L2b 180° C L1a 240° C L3b 300° C L2a 2.) Failed element in the capacitor unit without element fuses Phase angel φunb Faulty capacitor unit 0° C L1a 60° C L3b 120° C L2a 180° C L1b 240° C L3a 300° C L2b Page 20 of 50 ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions 12.1 Example of parameter setting ESTAsym MD Parametrs of capacitor bank: Capacitor Bank Nominal line to line voltage Nominal line current Phase capacity Unit nominal voltage Unit capacity Double wye with reactors 4 MVAr, double wye Un =11 kV In = 231 A Cn = 127,3 µF Un = 6,35 kV, (Line to line voltage 11 kV) Cn = 31,8µF ESTAsym MD settings: Double wye with reactors Nominal current 231 A Network frequency 50Hz Current transformer ratio: IL1 1000/5; Iu 20/5 Unbalance protection: Warning threshold 0,8A; Delay 5s; Output relay RE1; Tripping threshold 2A, Delay 0,3s; Output relay RE2; Lower threshold IL1 50A Lower threshold Iu 0,1 mA Overvoltage protection: Overvoltage factor: 1,25 Phase capacitance: 127,3 µF Line to line Voltage: 11 kV (If set time and delay are empty, will be used ANSI-curve according to the paragraph 17) Tripping: Output relay RE2; Excessive heating protection: Warning threshold 240 A, Delay 300s; Output relay RE1; Tripping threshold 50 A, Delay 600s; Output relay RE2; (If set time and delay are empty, will be used ANSI-curve according to the paragraph 18) Line current unbalance protection: Warning threshold 10%; Delay 1s; Output relay RE1; Tripping threshold 30%; Delay 1s; Output relay RE2; Ground current: Warning threshold 10 %, Delay 1s; Output relay RE1; Tripping threshold 20 %, Delay 1s; Output relay RE2; Undercurrent protection: Tripping threshold 10 A, Delay 0,3s; Output relay RE2; Page 21 of 50 ESTAsym MD Operating instructions Fundamental harmonic overcurrent protection: Tripping threshold I> 280 A; Delay 0,5s; Output relay RE2; Tripping threshold I>> 300 A; Delay 0,5s; Output relay RE2; Overcurrent protection I(RMS): Tripping threshold I> 320 A; Delay 0,5s; Output relay RE2; Tripping threshold I>> 340 A; Delay 0,5s; Output relay RE2; Capacitor bank discharge timer: 10 min; Output relay RE4; Breaker failure: Output relay RE3; Output relay settings: Inverse Funktion: unused; Doc.No.: 13173 - Rev. 02 Page 22 of 50 ESTAsym MD Operating instructions RE1: Mode - ACK; RE2: Mode - Auto; RE3: Mode - End; RE4: Mode - Auto; RE5: for internal failure only; RE6: Mode - ACK; 12.2 Setting parameter through PC screen Connection: - Ports – COM 1 – COM 8 are on the front or rear panel - Connect - connect or disconnect the connection to relay Doc.No.: 13173 - Rev. 02 Page 23 of 50 ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions - Page 24 of 50 Select Baudrate Language: - Select language Parameter reading: - From file - From relay Parameter writing: - To file - To relay Start compensation: Starting of natural current compensation Erase compensation: Erase the compensation value Report: Display of recorded data Erase report: Erase recorded data Set date and time: Setting date and time from PC to relay (internal time of the computer is sent to the protection relay) Measuring: Display of measured data Info: Service data, program version, communication etc. Setting relay: Setting network frequency, alarm acknowledgement (automatic, manual) and connection of capacitor bank. Output relays: Each relay can be individually set to one of following modes: • Acknowledgement – output contact is closed until the Acknowledgement button is pressed • Automatic 1 s – output contact is closed for 1 second • Automatic – output contact is closed while the condition is met Optical inputs: Display of optical inputs states Block or release of protection functions: By clicking the fields Enabled it is possible to enable or disable individual protection functions. Unbalance protection: Setting parameter of unbalance protection Lower threshold IL1 is the minimum value of current IL1 Lower threshold Iu is the minimum value of current Iu Overvoltage protection: Setting parameter of Overvoltage protection IEC(ANSI): Overvoltage factor Phase capacitance Ph/Ph-Voltage (Line to line voltage) Set time: Delay Ph/Ph-Voltage (Line to line voltage) Capacitor bank discharge timer: Set time Current transformer ratio: Set the secondary current of current transformers x/1A or x/5 A. Setting output relays: Setting the output relays, normally energized or de-energized during the power-up ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions healthy condition. Setting parameters of followed protection: Line current unbalance protection Ground current protection Overcurrent protection Undercurrent protection Excessive heating protection: Set time on: Setting parameters and delay Set time off: Setting parameters Delay depend of ratio actual current/ nominal current Measured data Measured data on PC screen Page 25 of 50 ESTAsym MD Operating instructions Doc.No.: 13173 - Rev. 02 Page 26 of 50 ESTAsym MD Operating instructions Doc.No.: 13173 - Rev. 02 Page 27 of 50 ESTAsym MD Operating instructions Doc.No.: 13173 - Rev. 02 Page 28 of 50 ESTAsym MD Operating instructions Report Example of Report On LCD display is possible to display only data of the last event. Measured data on LCD display: Iu1; Iu2; Iu3 IL1; IL2; IL3 The data are displayed in dependence on connection of capacitor bank. Legend: Iu1;Iu2;Iu3 Unbalance currents IL1; IL2; IL3 Line currents Doc.No.: 13173 - Rev. 02 Page 29 of 50 ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 30 of 50 13 Display menu MAIN MENU only 10 s after Power-On Valid SW version 1.080/1.100/03 for IL1 < x.x Nom. current is lower than .....A Display Values A Report B Parameter Setting C Unbalance Compensation D Connection of capacitor bank Legend : ENTER E ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions DISPLAY VALUES DOUBLE WYE (WITH REACTORS) A Line 1 Current Line 2 Current Line A A 3 Current A Unbalance Current A H – BRIDGE (WITH REACTORS), TRIPLE DOUBLE WYE A Line 1 Current A Unbalance Current 1 A Unbalance Current 2 A Unbalance Current 3 A Page 31 of 50 (= Event) ESTAsym MD Operating instructions Doc.No.: 13173 - Rev. 02 Page 32 of 50 REPORT (only for Unbalance Protection) Date Time B xx. xx. xxxx xx. xx. xx Unbalance Warn. Current Line Lx Warning Current Lx . . . . . [A] Warning Phase Lx . . . . . [grad] TABLE EVENT: - - - - Line Curr. L1 – L2 ( or L1 – L3; L2 – L3 ) Unbalance Warn. ( or Trip. ) Capacitor Over Voltage L1 Trip. ( or L1; L2 ) Excessive L1 ( or L2; L3 ) Heating Warn. ( or Trip. ) Ground Fault Warn. - Overcurrent L1 ( or Trip. ) ( or L2; L3 ) Trip. Undercurrent L1 Trip. - Capacitor Bank Discharge Time ( or L2; L3 ) (or Tripping Current) ESTAsym MD Operating instructions B Date Time xx. xx. xxxx xx. xx. xx Operating personnel has changed remotely parameters B Date Time xx. xx. xxxx xx. xx. xx Operating personnel has changed locally a parameter Doc.No.: 13173 - Rev. 02 Page 33 of 50 ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 34 of 50 PARAMETER SETTING DOUBLE WYE WITH REACTORS C Unbalance Protection C1 Line Current Unbalance Prot. C2 Change enable Overvoltage Protection Overvolt Ratio x.xx ( or ANSI x.xx) Change Overvolt Protect Time x.x [ s] (only for set Time) Excessive Heat. Protection C3 Ground Fault Protection C4 Overcurrent Protection Overcurrent Protection RMS Undercurrent Protection Overcurrent Protection >> Overcurrent Protection > Overcurrent Protection RMS >> C6 Overcurrent Protection RMS > C6 C5 C5 C7 Change enable Capacitor Bank Discharge Timer Inhibit Time xx:xx [mm:ss] Change Legend : ENTER ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 35 of 50 PARAMETER SETTING DOUBLE WYE WITHOUT REACTORS C Unbalance Protection C1 Line Current Unbalance Prot. C2 Change enable Overvoltage Protection Overvolt Ratio x.xx ( or ANSI x.xx) Change Overvolt Protect Time x.x [ s] (only for set Time) Ground Fault Protection C4 Overcurrent Protection Overcurrent Protection RMS Undercurrent Protection Overcurrent Protection >> Overcurrent Protection > Overcurrent Protection RMS >> C6 Overcurrent Protection RMS > C6 C5 C5 C7 Change enable Capacitor Bank Discharge Timer Inhibit Time xx:xx [mm:ss] Change Legend : ENTER ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 36 of 50 PARAMETER SETTING H- BRIDGE H1 WITH OR WITHOUT REACTORS C Unbalance Protection C1 Change enable Capacitor Bank Discharge Timer Inhibit Time xx:xx [mm:ss] Change Legend : ENTER ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 37 of 50 PARAMETER SETTING H- BRIDGE H1 WITH REACTORS C Unbalance Protection C1 Change enable Overvoltage Protection Overvolt Ratio x.xx ( or ANSI x.xx) Change Overvolt Protect Time x.x [ s] (only for set Time) Excessive Heat. Protection C3 Overcurrent Protection Overcurrent Protection RMS Undercurrent Protection Overcurrent Protection >> Overcurrent Protection > Overcurrent Protection RMS >> C6 Overcurrent Protection RMS > C6 C5 C5 C7 Change enable Capacitor Bank Discharge Timer Inhibit Time xx:xx [mm:ss] Change Legend : ENTER ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 38 of 50 PARAMETER SETTING H - BRIDGE H1 WITHOUT REACTORS C Unbalance Protection C1 Change enable Overvoltage Protection Overvolt Ratio x.xx ( or ANSI x.xx) Change Overvolt Protect Time x.x [ s] (only for set Time) Overcurrent Protection Overcurrent Protection RMS Undercurrent Protection Overcurrent Protection >> Overcurrent Protection > Overcurrent Protection RMS >> C6 Overcurrent Protection RMS > C6 C5 C5 C7 Change enable Capacitor Bank Discharge Timer Inhibit Time xx:xx [mm:ss] Change Legend : ENTER ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 39 of 50 PARAMETER SETTING TRIPLE DOUBLE WYE C Unbalance Protection C1 Change enable Capacitor Bank Discharge Timer Inhibit Time xx:xx [mm:ss] Change Legend : ENTER ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 40 of 50 PARAMETER SETTING The number appears only for triple double wye Change enable C1 Warning Current 1 . . . . . [A] Unbalance Prot. Warning Change Appears only for triple double wye Change enable Warning Current 2 . . . . . [A] Change Appears only for triple double wye Change enable Warning Current 3 . . . . . [A] Change Change enable Warning Time . . . . . [sec.] Change The number appears only for triple double wye Change enable Tripping Current 1 . . . . . [A] Unbalance Prot. Tripping Change Appears only for triple double wye Change enable Tripping Current 2 . . . . .[A] Change Appears only for triple double wye Change enable Tripping Current 3 . . . . .[A] Change Change enable Tripping Time . . . . [s] Change Legend : ENTER ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 41 of 50 PARAMETER SETTING Change enable C2 Warning Percent Line Curr. Prot. Warning . . . . . [%] Change Change enable Warning Time . . . . . [s] Change Change enable Tripping Percent Line Curr. Prot. Tripping . . . . . [%] Change Change enable Tripping Time . . . . . [s] (only Change enable C3 Heating Prot. Warning (or Warning ANSI) Warning Heat. Curr. . . . . . [A] Change Change enable Warning Heat. Time . . . . . [s] (only for set Time) Heating Prot. Tripping (or Tripping ANSI) Change Change enable Trip. Heat. Curr. . . . . . [A] Change Change enable Trip. Heat. Time . . . . . [s] (only for set Time) Legend : ENTER Change ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 42 of 50 Parameter setting Change enable C4 Warn. Gnd. Per. Ground Prot. Warning . . . . . [%] Change Change enable Warn. Gnd. Time . . . . . [s] Change Change enable Trip. Gnd. Per. Ground Prot. Tripping . . . . . [%] Change Change enable Trip. Gnd. Time . . . . . [s] Change Change enable C5 Trip. Over Cur. >> (or >) . . . . . [A] Change Change enable Trip. Over Time >> (or >) . . . . . [s] Change Change enable C6 Trip. Over Cur. >> (or >) RMS . . . . . [A] Change Change enable Trip. Over Time >> (or >) RMS . . . . . [s] Change Legend : ENTER ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Change enable C7 Trip. Under Cur. . . . . . [A] Change Change enable Trip. Under Time . . . . . [s] Change Legend : ENTER Page 43 of 50 ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 44 of 50 UNBALANCE COMPENSATION D Nom. current lower than .....A Start Unbalance Compensation Unbal. current is lower than . . . . . A Compensation In Processing End Of Unbalance Compensation Erase Compensat. in Processing Erase Compensation E Double wye with reactors Double wye without reactors H – Bridge with reactors H – Bridge without reactors H – Bridge with reactors 1 line H – Bridge without reactors 1 line Legend : Triple double wye ENTER ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 45 of 50 14 Technical data Current inputs Rated current Four current inputs, each can be parameterized to 1A or 5A. Maximum current transformer ratio is 6000/x Thermal current withstand - Continuously 15A - For 1 second 100A Optron inputs 20 – 220 V DC Rated frequency 50Hz / 60Hz Power supply Standard 100-375 V DC or 100-240 AC 50/60Hz Option 18-75V DC Power consumption 10 VA Output contact rating Continuous carry 8A / 265 V AC 0,3A / 300V DC 8A / 30V DC Data transmission Interface RS 232 on the front panel or RS 485 and RS 232 on the rear panel. Baudrate is selectable by the PC software. RS 485 is not used by the software now. Metering of harmonics: Odd harmonics up to 25-th, even up to 6-th Environmental conditions: Operating temperature - 10 up to + 60°C Storage temperature - 20 up to + 70° C Dimensions 135 x 135 x 121 mm (w x h x d) Degree of protection of the relay IP 54 ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 46 of 50 15 Immunity tests Conducted rf disturbance test according to: EN 61000-6-4, industrial environment and EN 550 11/A. Level: Allowed value: 30 – 230 MHz 40dB (µV/m) 230 – 1000 MHz 47 dB (µV/m), l = 10 m. 0,15 – 0,5 MHz 79 dB(µV/m)/66 dB(µV/m) 0,5 – 30 MHz, 73 dB(µV/m)/60 dB(µV/m) Interference voltages introduced into the mains according to: EN 55011/A 0, 15 – 30 MHz, step 8 kHz, measurement time 1 s Interfering radiation in the 30 – 1000 MHz band 38,9 – 50,9 dB (µV/m) Test of electric discharge resistance according to: EN 61000-4-2 (IEC 801-2), IEC 1000-4-2, ČSN EN 610000-4-2. Temperature: 22 ˚C, rel. humidity: 51% Testing voltage: 4 kV contact 8 kV air Immunity test radiated electromagnetic field requirements according to: EN 61000-4-3, IEC 1000-4-3 (IEC 801-3) Operating conditions: scan spectrum: 80 to 1000 MHz, mod. 80% AM/1 kHz, intensity of field: 10V/m Test by quick transient burst according to: EN 61 000-4-4, IEC 100-4-4 (IEC 801-4). Testing voltage applied: By link circuit into supply, testing voltage: ± 2 kV By capacity clamp into supply, testing voltage ±1 kV By capacity clamp into in/out cable, testing voltage ± 1 kV Surge immunity test according to: EN 61000-4-5, IEC 1000-4-5, IEC 801-5. Testing voltage applied: Line to line ± 1 kV Line to ground ± 2 kV To in/out ± 1 kV Immunity test – conducted disturbances inducted by radio – frequency fields, according to: EN 61000- 4-6, IEC 61000-4-6, EN 61000-4-6. Test level 10V, scan spectrum 150 kHz – 80 MHz, mod 80% AM/1 kHz Voltage dips, short interruption and voltage variations, according to EN 61000-4-11:1996 ESTAsym MD Operating instructions Test level 70%Ut, duration 10 ms Test level 40%Ut, duration 100ms Test level 40%Ut duration 1000 ms Doc.No.: 13173 - Rev. 02 Page 47 of 50 ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 48 of 50 16 Dimensions and cut-out details 8 mm 113 mm 138 mm Panel Cut - Out Fig. 4 Dimensions and cut-out details 138 mm PC 138,4 mm 138,4 mm ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 49 of 50 17 Times of warning and tripping for the overheating protection Iset/In Warning[s] Tripping [s] 1,3 4041 8082 1,4 2700 5400 1,5 1853 3706 1,6 1302 2604 1,7 935 1869 1,8 683 1366 1,9 508 1015 2 383 765 2,1 293 585 2,2 227 453 2,3 177 354 2,4 140 280 2,5 112 223 Iset/In Warning [ s] Tripping [ s] 2,6 90 180 2,7 73 146 2,8 60 119 2,9 49 98 3 41 81 3,1 34 68 3,2 29 57 3,3 24 48 3,4 21 41 3,5 18 35 3,6 15 30 3,7 13 25 3,8 11 22 Iset/In Warning [s] Tripping [s] 3,9 10 19 4 8 16 4,1 7 14 4,2 7 13 4,3 6 11 4,4 5 10 4,5 5 9 4,6 4 8 4,7 4 7 4,8 3 6 4,9 3 5 >= 5 0 0 18 Times of tripping for Overvoltage protection Factor 0,80 Uc/Ucr Time [s] 0,84 1000 0,85 850 0,86 700 0,87 550 0,88 400 0,89 250 0,90 100 0,92 84 0,94 68 0,96 52 Uc/Ucr Time [s] 0,98 36 1,00 20 1,02 16,8 1,04 13,6 1,06 10,4 1,08 7,2 1,10 4,0 1,14 2,9 1,17 2,0 1,20 1,2 Uc/Ucr Time [s] 1,30 0,6 1,40 0,4 1,50 0,2 1,60 0,1 1,70 0,1 1,80 0,1 1,90 0,1 2,00 0,1 2,10 0,1 2,20 0,1 Factor 0,90 Uc/Ucr Time [s] 0,95 1000 0,96 828,8 0,97 657,6 0,98 486,4 0,99 315,2 1,00 144 1,02 121,2 1,04 98,4 1,06 75,6 1,08 52,8 Uc/Ucr Time [s] 1,10 30 1,12 25,2 1,14 20,4 1,16 15,6 1,18 10,8 1,20 6,0 1,23 4,8 1,26 3,6 1,30 2,0 1,40 0,9 Uc/Ucr Time [s] 1,50 0,5 1,60 0,3 1,70 0,2 1,80 0,1 1,90 0,1 2,00 0,1 2,10 0,1 2,20 0,1 2,30 0,1 2,40 0,1 Factor 1,00 Uc/Ucr Time [s] 1,06 1000 1,07 800 1,08 600 1,09 400 1,10 200 1,12 170 1,14 140 1,16 110 1,18 80 1,20 50 Uc/Ucr Time [s] 1,22 42 1,24 34 1,26 26 1,28 18 1,30 10 1,32 8,6 1,35 6,5 1,38 4,4 1,40 3,0 1,50 1,4 Uc/Ucr Time[s] 1,60 0,8 1,70 0,5 1,80 0,3 1,90 0,2 2,00 0,1 2,10 0,1 2,20 0,1 2,30 0,1 2,40 0,1 2,50 0,1 ESTAsym MD Doc.No.: 13173 - Rev. 02 Operating instructions Page 50 of 50 Factor 1,10 Uc/Ucr Time [s] 1,16 1000 1,17 825 1,18 650 1,19 475 1,20 300 1,22 252 1,24 204 1,26 156 1,28 108 1,30 60 Uc/Ucr Time [s] 1,32 51 1,34 42 1,36 33 1,38 24 1,40 15 1,42 13 1,45 10 1,48 7 1,50 5 1,60 2 Uc/Ucr Time [s] 1,70 1,0 1,80 0,6 1,90 0,4 2,00 0,3 2,10 0,2 2,20 0,1 2,30 0,1 2,40 0,1 2,50 0,1 2,60 0,1 Factor 1,25 Uc/Ucr Time[s] 1,32 1000 1,33 890 1,34 780 1,35 670 1,36 560 1,37 450 1,38 340 1,39 230 1,40 120 1,42 105 Uc/Ucr Time [s] 1,44 90 1,46 75 1,48 60 1,50 45 1,52 38,4 1,54 31,8 1,56 25,2 1,58 18,6 1,60 12 1,63 9,7 Uc/Ucr Time [s] 1,66 7,4 1,70 4,4 1,80 2,0 1,90 1,1 2,00 0,7 2,10 0,5 2,20 0,4 2,30 0,3 2,40 0,2 2,50 0,1 Factor 1,50 Uc/Ucr Time [s] 1,59 1000 1,60 700 1,61 640 1,62 580 1,63 520 1,64 460 1,65 400 1,66 340 1,67 280 1,68 220 Uc/Ucr Time [s] 1,69 160 1,70 100 1,72 88,8 1,74 77,6 1,76 66,4 1,78 55,2 1,80 44 1,83 35,3 1,86 26,6 1,90 15 Uc/Ucr Time [s] 2,00 6 2,10 3 2,20 1,7 2,30 1,0 2,40 0,7 2,50 0,5 2,60 0,4 2,70 0,3 2,80 0,2 2,90 0,1