Areva earth fault relay type cdg software

Alstom limited cannot be held responsible for any reliance on any decision. A transparent plastic lockable front cover is provided for sealing of the setting. The relay has a high torque movement combined with low burden and low overshoot. Type cdg 11 overcurrent and earthfault relay general description a nondirectional heavily damped induction disc relay which has an adjustable inverse timecurrent characteristic with a definite minimum time.

Micom p111 overcurrent relay software version 7d hardware suffix ad. An external fault in the star side will result in current flowing in the line current transformer of the affected phase and at the same time a balancing current flows in the neutral current transformer, hence the resultant current in the relay is therefore zero. If you have the 3sec relay s trip curve, you can just multiply the time with 1. Download manual of induction disc type cdg 61 relay alstom. Protection relays guide list of ansi codes applied in the guide ansi code main protection function 5051 nondirectional phase overcurrent 50n51n nondirectional earth fault 67 directional phase overcurrent 67n directional earth fault 67yn admitance earth fault 37 phase undercurrent loss of load 4951 thermal overload. Micom p120, p121, p122 and p123 universal overcurrent. Very often the xri1er can be found as backup protection at the central earthing point of the system. Micom p141, p142, p143 technical manual feeder management relays platform hardware version. The type cdg 24 relay is a cdg 14 with an instantaneous unit. The classical method for detecting ground faults on a looped system has been to use directional. During study of electrical protective relays, some special terms are frequently used. Accurately follows time curves to bs142 and iec60255. Cthen there is a table on the frontdisplay which gives the relation between plug setting multiplierscale goes from 1 to 20 versus time in seconds scale goes from 30 to 2.

Added models to represent the overcurrent and earth fault units of the abb spad 346 c protection relay. Idmt overcurrent and earth fault relay with highset type cdg 21 61 type cdg 2161 idmt idmt overcurrent overcurrent and earthfault relay with highset alstom cdg earth fault relay manual. Relay variant xri1er with directional current sensing is a selective earth fault protection and is normally used in ring systems, networks with parallel feeders and in complex meshed systems. The company history has changed over the last few years.

Line protection relay that provides advanced communications and more protection functions such as autorecloser. In electrical engineering, a protective relay is a relay device designed to trip a circuit breaker when a fault. It designs, manufactures and supplies a complete range of equipment, systems and services for all stages in the transfer of electricity, from the generator to the large enduser. Xi1eer earth fault relay for isolated compensated systems. Type cdg 21 61 idmt overcurrent and earth fault relay with h i ghset. The user can select any of the 14 families of curves and tms values for the first stage. Type cdg 11 overcurrent and earthfault relay system controls. Current settings graded tap ranges 1040%, 2080% or 50200% of 0.

Gfci ground fault circuit interrupter circuit breakers combine overcurrent protection and. A number of cdg x1x6 5a relays x 1,2,3 have been included in. Numerical relays low cost feeder protectionalstom ge. Sensitive earth fault 50 earth fault indication 30 directional phase andor earth fault 67 directional overcurrent andor earth fault 67 directional earth fault 67. The relay can be reset via a reset button on the front of the rudolf earth fault relay without breaking the locking seal. Earth fault relay product guide spaj 110 c 1mrs750351mbg 4 design the earth fault relay spaj 110 c is a secondary relay that is connected to the current transformers of the object to be protected. Micom p12x is a range of directional and nondirectional overcurrent relays from single phase or earth fault up to the multifunctional threephase p127 device with voltage protection functions. Reach out to our customer care team to receive information on technical support, assistance for. The type cdg 11 relay is a heavily the relay gives selective phase and earth fault overcurrent protection in time. The relay can also be used as high impedance busbar with full scheme supervision. Jun 08, 2019 primary relay or primary protection relay is the first line of power system protection whereas backup relay is operated only when primary relay fails to be operated during a fault. Nov 17, 2019 restricted earth fault protection of transformer.

The combined restricted earthfault and residual earthfault relay spaj 115 c is intended to be used for the earth fault protection of power generators, motors and transformers. Compact construction type by smdtechnology mrprotection relays are used for more complex protective functions, such as earth fault directional detection, and also in cases where easy operation, quick faultanalysis and optimal communication capabilities are required. Pdf micom p111 overcurrent relay software version 7d. When the fault occurs, the shortcircuit currents flow through the system, and this current is returned through the earth or any electrical equipment. The type cdg 34 relay is a triple pole version with three overcurrent units or two overcurrent units and one earth fault unit in the centre of the type cdg 14. Sila is provided with nonvolatile ram memory in order to store up to 3. Im not sure if the cdg and cdg 14 data are in electronic format, although i think it will be. Electrical relays alstom idmt relay wholesaler from pune. If assigned to energise at the start, the relay can be used to operate a buzzer or lamp giving early warning before a system actually shuts down. Installation manual kingspan solar download cdg 36 relay manual.

Power protection system relays welcome to ine value creators. Lowset and highset thresholds can be programmed for the earth fault detection. Areva ctum 15 relay download ebook areva ctum 15 relay relay settings and. Earthfault relay cdg11 english electric electric power. Micom p111 overcurrent relay software version 7d hardware suffix ad technical manual p111en md11.

Earthfault highset current l adjustment this adjustment is for setting the instantaneous tripping current due to an earthfault. For full details of the highset instantaneous units refer to relevant publications. Fault start event memory nonvolatile 4 previous records programmable relay output contact for k2 last trip elapsed time up to 99days software lock to prevent unauthorized setting complies with iec6025526 standards external plugin module for. Trip contacts there is one set of tripping contacts namely, r1. The t2800 overcurrent or earth fault relay has a broad application as an earth fault or a single phase overcurrent detection relay. The relay is latched so once the earth fault occurs, the relay remains energized, regardless of the condition of the system being monitored. Overcurrent and earth fault protection relay 30 testandard display show more characteristics. Din rail mounting an earth fault relay is a safety device used in electrical installations with high earth impedance to prevent shock. Typetype cdgcdg 21612161 idmtidmt overcurrentovercurrent. Type cdg 14 extremely inverse time overcurrent and earth fault relay a high set overcurrent unit type cag can be fitted in the same case to provide instantaneous protection under maximum short circuit conditions see application sheet r5087. The micom agile p14x is an advanced feeder management relay platform with overcurrent and earth fault protection, as well as autoreclose and a full suite of protection, control and monitoring functions. The sensitive earth fault relay suits as both primary and backup earth fault protection relay. This cdg 11 type relay is applied for selective phase and earth fault protection in time graded systems for ac machines.

Wholesale trader of protection relays numerical relays low cost feeder protectionalstom ge, numerical relays basic feeder protectionalstom ge, transformer differential relayalstom ge and earth leakage relays prayog jvs offered by sashi commercial co, raniganj, west bengal. This is often wired the same as your cdg relays with a trip coil in place of the relay elements usually 2 or 3 for phase over current and sometimes one for the earth fault. Alstom cdg earth fault relay manual predator vault. Iet forums english electric cdg type protection relays topic title. Areva micom c264 protection relay c264l01e651602001001111r10. The eord earth fault detection relay is a component of the regsystm measurement, control, regulator and recording system. The combined overcurrent and earth fault relay spaj 140 c is intended to be used for the selective shortcircuit and earth fault protection of radial feeders in solidly earthed, resistance earthed or impedance earthed power systems. Contact alstom for the data ive got some data for the cdg 11electronic format from them. The ground relay zone of protection can be defined as a current threshold or measured impedance. The integrated protection relay includes a phase overcurrent unit and an earth fault. Obviously the circuit breaker has to be capable of being fitted with more than one trip coil. Study of idmt overcurrent relay idmt relay inverse definite minimum time relay are protection.

Type cdg 14 extremely inverse time overcurrent and earth. It has a wide setting range for protection, control and monitoring. Restricted earthfault and residual earthfault relay spaj. Relay type cdg, 23, 33, 43, 53, 63 very inverse inverse time current curves to bs 142. Push on the test button to simulate an earthfault lowset and highs e t trip condition. The t2800 is part of the selco tline series with modular units for protection, control and monitoring of generators. It also occurs, because of the insulation breakdown. This adjustment is for setting the minimum earthfault for tripping with time delay. Restricted earth fault time delay earth fault trip. Application the sensitive earth fault relay spaj 111 c is designed to be used as a neutral current measuring feeder earth fault relay, as generator interturn fault protection, as capacitor bank unbalance protection and rotor earth fault protection. R1 manual reset type this contact r1 is activated during an earthfault trip. The relay contains two energizing input circuits, that is, a differential earth fault current circuit and a residual earth fault.

Hence backup relay is slower in action than primary relay. These relays are available at good discounted rates. Added relays that represent the following functions from the ge m60 motor protection relay. Iet forums english electric cdg type protection relays. Types of electrical protection relays or protective relays. Fanox self powered relays,overcurrent earth fault protection. Recently the company has now been acquired by areva. The sensitive earth fault relay spaj 111 c is designed to be used as neutral current measuring feeder earth fault relay, as generator interturn fault protection, as capacitor bank unbalance protection and rotor earthfault protection. This range of products is ideal for hv, ehv and uhv applications on lines and cables of any. The old cdg relays are still manufactured in india. It detects small stray voltages on the metal enclosures of electrical equipment, and interrupts the circuit if a dangerous voltage is detected. Eorsystm eord the eord earth fault detection relay is a component of the eorsys detection system and is therefore easy to connect to the regd voltage regulator and the regdp pcoil regulator.

Static definite time delayed sensitive earth fault relay with 3rd harmonic rejection electromechanical relay for use on cable circuits. Object name relay model version description 1 6md63 6md63x 2 6md662 6md662 3 6md663 6md663 4 9001 relayoutput sudden pressure relay 5 generic autorecloser generic autorecloser auto reclosure 6 generic earthfault protection generic overcurrent earth fault protection. Type tests are required to prove that a relay meets the published specification and. Earth current range is adjustable for each stage from 0. Protective relays can also be classified by the type of measurement they make. Schneider earth leakage relay type rh21p 300ma clip 220240vac or 380415vac. Micom p12x documents and downloads schneider electric. The setting range is from 1x to 10x of the earthfault lowset setting. Type mcgg service manual overcurrent relays for phase and earth faults.

Xri1er earth fault relay for isolated and compensated mains. Fault recording event recording disturbance recording15 s. Timedelayed earth fault overcurrent 51n earth fault detection in the micom p12x range is identical to the timedelayed phase overcurrent. Object name relay model version description 1 6md63 6md6xx 2 6md662 6md6xx 3 9001 relayoutput sudden pressure relay 4 generic autorecloser generic autorecloser auto reclosure 5 generic earthfault protection generic overcurrent earth fault. A ground relay must detect all phasetoground faults within its defined zone of protection under conditions which produce minimum fault current. Areva make micom relay type p2,111,211,122,127,141,142,632,642,225,242,921,922. Three independent earth fault stages are selectable. The earth fault current can be measured either via a set of three phase current transformers in a residual current connection or a. Electromechanical relays have been the traditional backbone of electrical protection systems. For earth fault relay it is from 10% to 70% in steps of 10%. The sensitive earth fault relay is suited for both primary and backup earth fault protection. Supplied with tecquipments protection and relay test set psl50, the relay enables investigations into protection and monitoring of transformers, transmission lines and distribution schemes.

Relay 2 has the added option of being allowed to energise at the start or end of a time out period. Any relay may fail to be operated due to any of the following reasons, the protective relay itself is. English electric became gec and subsequently gecalstom. Protection relays, earth fault relays, earth leakage relays. Both the residual voltage and neutral residual current on the protected line are evaluated to ensure a correct direction decision. Restricted earth fault protection of transformer ref. Schneider micom p541 overcurrent and earth fault relay p5411d3m0308j. Pick up current current setting plug setting multiplier and time. Relay curves gec cdg 23 sajith electrical 10 nov 01 00. Working of earth fault relay cdg 11 earth fault is the unintended fault between the live conductor and the earth. Areva corporate foundation backs cl ment, an areva employee. Protection and relays used in main circuit board at a.