e 2 TANGO-50 Short-Circuit Detector K-31.2.1 Data Sheet
We Create Ideas With Power! e 2 TANGO-50 short-circuit detector is a product of ELEKTROMETAL ENERGETYKA SA developed by our engineers with extensive know-how and many years of experience in the industry. Employed solutions and concepts answer challenges which our customer face in their day-to-day operations. These challenges were our key inspiration during design work. We have developed a compact device, functionally optimised and easy to use, designed mainly for use in compensation cabinets and other locations with limited space. Miniature e 2 TANGO-50 is designed to detect phase short-circuits and ground faults in three-phase MV grids. Like all other our products the device can be used in Smart GRIDS. We fully realize the importance of safety in power engineering, this is why this was one of the key aspects we focused on. High quality and reliability of all our products, including e 2 TANGO-50, is confirmed with tests and certifications. e 2 TANGO-50 is a miniature device ideal for locations where use of large protection relays is not possible. We recommend it to our Customers having full confidence of its capabilities.. Tomasz Klonowski Electronics Designer Elektrometal Energetyka SA 3
APPLICATION Small and compact e 2 TANGO-50 may be used as an stand-alone device in indoor and outdoor switchgears, container stations and wiring compartments. The device may also be used to provide complementary protection functionality to PLC controllers in small MV switchgears (such as modular switchgears, compact distribution blocks). The device may be used in harsh atmospheric conditions. e 2 TANGO-50 may interoperate with PLCs using MODBUS protocol or operate as a stand-alone device - short-circuit is indicated via relay contact. Fault indication has to be reset manually using a button. Viewing measured values, event history and confirming events (confirm operation status) is possible using communication links. container stations and indoor switchgears indoor and outdoor switchgears line bays wind power plant bays photovoltaic power plant bays 4
ADVANTAGES 2 settings banks event recorder records 32 latest events Rogowski coil for phase current measurement the device may use 1 mv/a sensitivity Rogowski coils, measurement measurement measurement available depending on version communication communication with the device is possible using Ethernet or 2-wire RS485 large measurement transformers hole diameter easy threading of large diameter measurement cables real-time clock synchronisation via communication channel, synchronisation stability better than 1 min/24h compact design small size e 2 TANGO-50 devices have 4 settings banks and a recorder which logs 32 events. The device has a real-time clock. Communication with the device is possible using Ethernet or 2-wire RS485. Phase current may be measured using Rogowski coils (e 2 TANGO-50 RC) with 1mV/A sensitivity, alternatively phase current may be measured using current transformers (e 2 TANGO-50 CT). Depending on version the I0 current may be measured or calculated. The device may be adapted for operation with a totalizer calculating U0 voltage based on phase voltages. It is also possible to measure U1, U2, U3 phase voltages using voltage transformers with a standard input voltage of 2/ V 3 or 3.25/ V 3 (e 2 TANGO-50 RCU). 5
DESIGN The following variants of e 2 TANGO-50 are available: e 2 TANGO-50 CT, e 2 TANGO-50 RC, e 2 TANGO-50 RCx, e 2 TANGO-50 RCU, e 2 TANGO-50 RCUx. e 2 TANGO-50 CT J4 connector RS485 connection and voltage measurement input I 3 I 2 LED indicators indication of device status, failures and protection operations communication connector Ethernet I 1 reset switch button allows also checking LED operation and restoring default communication settings current transformers I 1, I 2, I 3 measurement current transformer measurement J1 connector device power, signalling relay output e 2 TANGO-50 RC e 2 TANGO-50 RCx J5 connector connection of Rogowski coil for L3 J4 connector RS485 connection and voltage measurement input current transformer current measurement J1 connector device power, signalling relay output J1 connector connection of Rogowski coils for L1, L2 6
e 2 TANGO-50 RCU e 2 TANGO-50 RCUx J6 connector U1 voltage transformer connection J5 connector U2, U3 voltage transformer connection J4 connector RS485 communication connector J6 connector U1 voltage transformer connection J5 connector U2, U3 voltage transformer connection J4 connector RS485 communication connector current transformer measures current J3 connector Connection of Rogowski coil for L3 and GND terminal for coil cable screen J1 connector Device power, signalling relay output J2 connector Connection of Rogowski coils for L1, L2 J3 connector Connection of Rogowski coil for L3 and GND terminal for coil cable screen J1 connector Device power, signalling relay output J2 connector Connection of Rogowski coils for L1, L2 SIGNALLING Colour green (intermittent) red orange Cause Overcurrent protections on Stand-by normal operation Overcurrent type protection (I>, I>>) operation. Signalling is turned off on confirmation of the event (using reset button or a command on communication link). Overcurrent type protection pick-up. The LED turns off when pick-up ends. red green TX signalling for RS485 RX signalling for RS485 red orange Device fault signalling (CRC checksum incorrect, etc.). The LED turns off when the cause is removed and event is confirmed (with Reset button or through a communications link). If the device is turned on with Reset button pressed a countdown to restoring communication parameters starts. Default communication settings will be restored after 15 seconds if the button remains pressed afterwards LED turns off (or will continue with current AL signalling). Fast blinking - indicates measurement simulation mode for protection operation testing. Once simulation is complete the LED will operate as normal. green (intermittent) red orange Ground-fault type protections and zero sequence component overvoltage type protections Stand-by status (I0>, U0>, Y0>, Y0k>, I0k>), normal operation. Ground-fault type protections and zero sequence component overvoltage type protections operation (I0>, U0>, Y0>, Y0k>, I0k>). LED is turned off on confirmation of the event (using reset button or a command on communication link). Ground-fault type protections and zero sequence component overvoltage type protections pick-up. The LED turns off when pick-up ends. K1 relay contact Activated by protection operation or AL signal. The signal is maintained until confirmed (using reset button or communication link) or until automatic reset. 7
DESIGN e 2 TANGO-50-CT is designed to measure phase currents with current transformers, measure current with measurement transformer or calculate it, measure U0 voltage.. e 2 TANGO-50-RC is designed to measure phase currents using Rogowski coils (1mV/A sensitivity), measure current using measurement transformer or calculate it, measure U0 voltage. e 2 TANGO-50-RCx is designed to measure phase currents using Rogowski coils (1mV/A sensitivity), current is calculated only. e 2 TANGO-50-RCU is designed to measure phase currents using Rogowski coils (1mV/A sensitivity), phase voltages using voltage transformers (standard input voltage 2/ 3 or 3,25/ 3), measure or calculate I0 current, U0 voltage is calculated only. e 2 TANGO-50-RCUx is designed to measure phase currents using Rogowski coils (1mV/A sensitivity), measure phase voltages using voltage transformers (standard input voltage 2/ 3 or 3.25/ 3), U0 voltage is calculated only. DIMENSIONS 62 e 2 TANGO-50 CT 107 53 e 2 TANGO-50 RC/RCU 23 e 2 TANGO-50 RCx/RCUx H device H e 2 TANGO-50CT 105 e 2 TANGO-50 RC/RCx 108 e 2 TANGO-50 RCU/RCUx 112 PROTECTION FUNCTIONS PROTOCOLS 50/51 50n/51n 59n 21n 21nd 67n short-circuit / overcurrent protections ground-fault protections zero-sequence component overvoltage type protection admittance based directional admittance based zero-component overcurrent directional protection Modbus TCP Modbus RTU 8
WIRING DIAGRAMS Ethernet signalling contact RJ46 J1.2 phase currents are measured using current transformers current is measured using Ferranti transformer RS485 (A) (B) J4.1 J4.2 U0 measurement l2(1) J4.3 phase currents are measured using Rogowski coils (wire length should not exceed 10 m) J2.1 l1.(1) I1 measurement J2.3 l2.(1) I2 measurement KI signalling contact 24 V DC power supply J1.2 J5.1 l3(1) I3 measurement (B) J4.2 current is measured using Ferranti transformer U0 measurement l2(1) J4.3 phase currents are measured using Rogowski coils (wire length should not exceed 10 m) J2.1 l1.(1) I1 measurement J2.3 l2.(1) I2 measurement J5.1 l3(1) I3 measurement KI signalling contact J1.2 24 V DC power supply (B) J4.2 U0 measurement l2(1) J4.3 TANGO-50 RCU phase currents are measured using Rogowski coils (wire length should not exceed 10 m) voltage is measured using voltage transformers J2.1 l1.(1) I1 measurement J2.3 l2.(1) I2 measurement J3.1 l3(1) I3 measurement J3.2 l3(2) J3.3 RC-GND J3.4 RC-GND J5.1 U3(1) U1 measurement J5.2 U3(2) J5.3 U2(1) U2 measurement J5.4 U2(2) KI signalling contact J1.2 24 V DC power supply RS485 (A) J4.3 (B) J4.4 J6.1 U1(1) U1 measurement J6.2 U1(2) TANGO-50 RCUx phase currents are measured using Rogowski coils (wire length should not exceed 10 m) voltage is measured using voltage transformers I0 current is measured using Ferranti transformer J2.1 l1.(1) I1 measurement J2.3 l2.(1) I2 measurement J3.1 l3(1) I3 measurement J3.2 l3(2) J3.3 RC-GND J3.4 RC-GND J5.1 U3(1) U3 measurement J5.2 U3(2) J5.3 U2(1) U2 measurement J5.4 U2(2) J6.1 U1(1) U1 measurement J6.2 U1(2) KI signalling contact J1.2 24 V DC power supply RS485 (A) J4.3 (B) J4.4 9
e 2 TANGO-STUDIO SOFTWARE e 2 TANGO-50 short-circuit detector is compatible with e 2 TANGO-Studio engineering software which is dedicated for operation of the device and provides tools for its configuration. Viewing measured values, event history and confirming events (resetting operation status) is possible using communication links and e 2 TANGO-Studio software. TECHNICAL PARAMETERS Auxiliary power supply Voltage Maximum power consumption Basic protection parameters Device operate time Current measurement circuits Rated current Rated frequency Phase current measurement range current measurement range Voltage measurement circuits Rated voltage Un Rated phase voltage n 24 V DC ±15% 3 W typically - 35 ms 5 A (1 A option) 50 Hz for CT version: 0.5-60 A for RC/RCU version: 5-1400 mv 0,05-10 A 2/ 3 or 3.25/ 3 100 V Rated frequency 50 Hz voltage measurement range 5-120 V Measurement accuracy I1, I2, I3 2,5% U1, U2, U3 2,5% 2.5% (5% when calculated) 2.5% (5% when calculated) φ 0 2 Binary output parameters Voltage at open contacts 250 VAC / 110 VDC Constant load 5 A Environmental conditions Operating temperature -40 C... +70 C Storage temperature -40 C... +70 C Relative humidity 95% Vibration and mechanical shock resistance Class 1 acc. IEC 60255-21 Electromagnetic disturbances Class B acc. IEC 60255-26 Safety Insulation electric strength 1 kv/50 Hz/60 s acc. IEC 60255-27 Dimensions Protection rating IP 20 Weight (CT / RC / RC-x) approx. 300 g / approx. 180 g / approx. 150 g Dimensions (H x W x D) - CT 105 * 62 * 107 mm - RC 108 * 53 * 107 mm - RCx 108 * 23 * 107 mm - RCU 112 * 53 * 107 mm - RCUx 112 * 23 * 107 mm Phase current transformer hole diameter 13 mm current transformer hole diameter 8,5 mm 10
e 2 TANGO-50 VERSIONS CT-1 CT-5 RC RC-x RCU RCU-x e 2 TANGO-50 Phase current measurement using current transformers - - - Rated current 1 A 5 A - - Current measurement using Rogowski coils (3xWE) - - measurement (transformer) - calculation based on phase currents - - - - - measurement - - calculation - - - - Angle measurement ( / ) U 1, U 2, U 3 measurement - - - - /- available/unavailable STANDARDS PN-EN 60255-1 PN-EN 60255-26 PN-EN 60255-27 Measuring Relays And Protection Equipment. Part 1: Common Requirements 26 Measuring Relays And Protection Equipment. Part 26: Electromagnetic compatibility requirements Measuring Relays And Protection Equipment. Part 27: Product Safety Requirements CERTYFIKATY I NAGRODY IEn compliance certificate no. 003/2016 Mazowsze Quality Award ELEKTROMETAL ENERGETYKA SA QUALITY Implemented Integrated Management System according to: PN-EN ISO 9001 Quality management systems PN-EN ISO 14001 Environmental management systems PN-N 18001 Occupational health and safety management systems BS OHSAS 18001 Occupational health and safety management systems 11
ELEKTROMETAL ENERGETYKA SA 02-830 Warszawa, ul. Mazura 18A tel. (+48) 22 350 75 50 fax (+48) 22 350 75 51 eaz@elektrometal-energetyka.pl www.elektrometal-energetyka.pl