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Technical Documentation

KSR-Z – Capacitor-Bank Protection Relay

Rev. 04

Page

Section 8: Maintenance

There is no maintenance necessary for the KSR-Z if you comply with the operating conditions. It is

advisable to accomplish a functional test of the device once a year in connection with the regular

examination of the system. This functional test should include the checking of all main functions

and all outputs.

Summary of Contents for KSR-Z

Page 1: ...citor Bank Protection Relay Rev 04 Beluk GmbH Taubenstrasse 1 D 86956 Schongau Germany Tel 49 0 8861 2332 0 Fax 49 0 8861 2332 22 E mail blr beluk de Web http www beluk de Technical Documentation Capa...

Page 2: ...n history Date Name Revision Change 07 11 11 Le 01 Initial document release 04 11 15 ChP 02 Password description corrected 10 11 15 ChP 03 Earth fault protection and natural unbalance compensation des...

Page 3: ...Contents Section 1 Overview 4 Section 2 Protection Function and Other Features 5 Section 3 Usage and Main menu 11 Section 4 Technical Specifications 24 Section 5 Drawings 28 Section 6 Applications 31...

Page 4: ...rol metering data storage fault recorder remote communications supervision and self monitoring features An HMI LCD display on the front of the device gives user friendly access to read the measurement...

Page 5: ...Current channels Thus provides information about the harmonic contents which distort the sine waveform of the current and voltage channels up to 51 order Current inputs are available with two options...

Page 6: ...z This enables KSR Z to act as a True RMS measuring device TRMS over a wide frequency range 2 2 2 Overvoltage and Undervoltage Protection Voltage VL1VL2VL3 elements provide Over voltage and Under volt...

Page 7: ...detected by the normal monitoring functions the KSR Z has an additionally timer to detect such repetitive events If an adjusted threshold is exceeded the time for the threshold violation is stored and...

Page 8: ...elay self monitoring feature watchdog These output contacts are shown in de energized state in the drawing under section 5 Under normal mode of operation output contacts remain energized for the adjus...

Page 9: ...ce compensation is only possible with a voltage signal between L1 N and a current signal at current channel 1 This signals are needed get the information of the phase angle and absolute value 2 3 2 Me...

Page 10: ...e at item 3 3 4 2 5 Trip characteristic With the KSR Z it is possible to select a adjustable delay time or one of 10 tripping characteristics For the characteristics please check appendix B Following...

Page 11: ...ey which is labelled with capital letters M can be used to switch to the main menu In the main menu one can choose between the following possibilities 3 Main menu 3 1 measurement display measured valu...

Page 12: ...its origin L1 L2 L3 N The units of the measured values are also displayed Use keys and to select from the variety of measured values In the top line the actual state of the assembled relays is shown...

Page 13: ...move the display to higher and lower harmonics The index which is shown with each harmonic specifies its order The fundamental harmonic index 01 is not shown as it is always 100 If the harmonic displ...

Page 14: ...f the huge amount of setup possibilities a set of submenus is used At certain points the user will be confronted with the need to enter numeric values The KSR Z will prompt with the old or a default v...

Page 15: ...T ct I123 ratio ratio of CT for L1 L2 L3 ct Iub ratio ratio of a CT for current 4 unbalance current set stage stage is shown in the display in case of an trip alarm display contrast display contrast s...

Page 16: ...3 2 Menu setup modbus This menu contains all MODBUS settings address modbus slave address of the device baudrate data transfer speed over serial RS485 connection parity parity setting for serial conn...

Page 17: ...rmally closed inverts this behaviour automatic reset manual reset If a relay is set to manual reset it will stay activated once it has been triggered by an alarm or trip even if the alarm or trip is i...

Page 18: ...damped current L1 L2 L3 Relay 1 e e e e e OL th Trip Relay 4 e e e e e OL f Alarm Fundamental current L1 L2 L3 Relay 1 e e e e e OL f Trip Relay 4 e e e e e UB Alarm Current channel 4 Relay 2 e e e e...

Page 19: ...s to the protection setting in case off exceeding the adjusted threshold In the table above all this options are listed in factory settings If necessary of course they can be adapted Following options...

Page 20: ...rd This submenu allows to change password from factory setting 2402 to customer requirement If no password protection is required adjust the password to 0000 no password is required 3 3 6 Menu setup c...

Page 21: ...version HW hardware revision number SN serial number of the device FLAGS options of the device The M key will switch back to the main menu To reset the KSR Z to factory settings press button 2 3 simu...

Page 22: ...lay Rev 04 Page 22 36 3 5 Menu reset alarms This resets all relays which are configured with the manual reset setting By selection of this menu entry the relays are set back to inactive state A new al...

Page 23: ...whether an ON or OFF event Show the supervised value Date of event Time of event Adjusted threshold Maximum exceeding during the delay time Page 2 Indicates in which memory cell the event is stored I...

Page 24: ...ct rating to be specified during order Continuous Overload 20 Continuous Short term overload 50A for 1sec Short term overload Option E 200A for 1sec Burden 100 mOhm 1A type 30 mOhm 5A type CT ratio Ma...

Page 25: ...318V 0 5 VLine to Line 95 550V 0 5 IL1 IL2 IL3 IUB 0 02 1 0A 0 5 1A type 0 05 5 0A 0 5 5A type Frequency 45 65 Hz 0 1 4 6 Output Contacts Contact Details Changeover contacts 2 Nos programmable Normal...

Page 26: ...crew type terminals max 6sqmm rigid 4spmm flexible Current and Voltage inputs Screw type terminals max 6sqmm rigid 4spmm flexible Output Contacts Screw type terminals max 6sqmm rigid 4spmm flexible Te...

Page 27: ...age Category Standards II pollution degree 3 DIN VDE 0110 Teil 1 IEC 60664 1 Protection Class Front IP 52 Rear IP 20 Housing Case Instrument casing Colour RAL 7037 dusty grey Dimensions H x W x D 144...

Page 28: ...Technical Documentation KSR Z Capacitor Bank Protection Relay Rev 04 Page 28 36 Section 5 Drawings 5 1 Connection diagram...

Page 29: ...Technical Documentation KSR Z Capacitor Bank Protection Relay Rev 04 Page 29 36 5 2 Dimensions...

Page 30: ...alarm All protection settings work similar on delay off delay relay 1 relay 2 relay 4 relay 6 relay 7 relay 8 output selector source selector value 1 value 2 value x value N comparator value threshold...

Page 31: ...tection of capacitor banks Some applications for the KSR Z are for example Detection of over load Detection of over voltage Detection of under voltage Capacitor over load harmonic protection Capacitor...

Page 32: ...sformer ratings comply with the ratings given on the back of the device 7 3 Connection The dimensions of the case and the necessary cut out in the control panel are given in the manual Mount the devic...

Page 33: ...a RS485 on the backside of the KSR Z if required 7 4 Preparation After the KSR Z device has been installed and connected as described in 6 2 and 6 3 the commissioning procedure can begin Before turnin...

Page 34: ...e is no maintenance necessary for the KSR Z if you comply with the operating conditions It is advisable to accomplish a functional test of the device once a year in connection with the regular examina...

Page 35: ...on The drawing below shows cold curve Formula t ln 1 y t time elapsing until Ie is arrived after applying current at current channel adjusted thermic tau see referring setting y Ie I Ie adjusted thres...

Page 36: ...ation KSR Z Capacitor Bank Protection Relay Rev 04 Page 36 36 Appendix B tripping characteristics 0 1 1 10 100 1000 1 1 5 2 2 5 3 3 5 4 4 5 5 Time log in sec Value ValuePickup Trip Curves U2 U3 U4 C2...

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