1. DL manuals
  2. ABB
  3. Switch
  4. REL 301
  5. Instruction Leaflet

ABB REL 301 Instruction Leaflet

Manual is about: Numerical Distance Relay

Summary of REL 301

  • Page 1

    Abb automation, inc. Substation automation & protection division coral springs, fl allentown, pa instruction leaflet effective: april, 1996 new information rel 301/302 version 1.4 numerical distance relay 40-386.4 abb network partner.

  • Page 2

    I.L. 40-386.4 rel301/302 revision notice date rev level pages removed pages inserted 4/96 released change summary: a change bar ( ) located in the margin indicates a change to the technical content.

  • Page 3: Caution

    I i.L. 40-386.4 it is recommended that the user of rel301/302 equipment become acquainted with the information in this in- struction leaflet before energizing the system. Failure to do so may result in injury to personnel or damage to the equipment, and may affect the equipment warranty. If the rel3...

  • Page 4: Preface

    Ii i.L. 40-386.4 preface scope this manual describes the functions and features of the rel301(non-pilot relay system) and rel302 (pilot relay system). It is intended primarily for use by engineers and technicians involved in the installation, testing, operation and maintenance of the rel301/302 syst...

  • Page 5: Table of Contents

    Iii i.L. 40-386.4 table of contents s ection p age section 1: product description 1. 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1. 2. Rel301/302 features . . . . . . . . . . . . . . . . . . ....

  • Page 6

    Iv i.L. 40-386.4 2.3.2 zone-2 trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 2.3.3 zone-3 trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

  • Page 7

    V i.L. 40-386.4 2. 6 programmable contact outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-22 section 3: settings calculations 3.1. Measurement units and setting ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1 3....

  • Page 8

    Vi i.L. 40-386.4 3.3.26 load loss trip setting (ll trip) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 3.3.27 loss of potential block setting (lop blk) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 3.3.28 loss of current...

  • Page 9

    Vii i.L. 40-386.4 section 5: rel301/302 acceptance test and maintenance procedures 5. 1. Non-pilot acceptance tests for rel301/302 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 5.1.1 front panel man-machine-interface (mmi) test . . . . . . . . . . . . . . . . . . . . . . ...

  • Page 10: List of Figures

    Viii i.L. 40-386.4 list of figures section number page number section 1 rel301/302 relay assembly in ft-42 case (photo) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 rel301/302 layout (vertical) (sheet 1 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-...

  • Page 11

    Ix i.L. 40-386.4 co-7 curve characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-43 co-8 curve characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-44 co-9 curve characteristic...

  • Page 12: Tables

    X i.L. 40-386.4 tables s ection n umber p age n umber section 2 phase and ground settings (5 tables) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4, 2-5 section 3 trip time constants for curves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Page 13

    Xi i.L. 40-386.4 rel301 and 302 version 1.4 features added and improvements made to version 1.12 1. Rel 301 and 320 1.1 added a signal (3v0t) which can be used by the programmable logic for zero sequence voltage detection. The signal (v a + v b + v c ) produces an output when 3v 0 105 volts. 1.2 cha...

  • Page 14

    Xii i.L. 40-386.4 rel301 and 302 version 1.12 features added and improvements made to version 1.11 1. Rel301 and 302 1.1 changed 3vo sensitivity from 3 volts to 1 volt for the directional units in order to increase the sensitivity for zone-2 and zone-3. 1.2 changed the loss of current blocking (“loi...

  • Page 16

    I.L. 40-386.4 1-2 1. 2. Rel301/302 features 1.2.1 standard features for rel301 (non-pilot) • 100% numerical processing • 3-zone distance phase and ground relay, with reversible zone-3 phase and ground; 4 imped- ance units per zone: 3 phase-to-ground; 1 phase-to-phase. • t1 timer (0 to 15 cycles) • i...

  • Page 17

    I.L. 40-386.4 1-3 1.2.2 standard features for rel302 (pilot) • all features listed as standard for the rel301 are also standard in the rel302 • independent pilot zone phase and ground distance units • permissive overreach transfer trip (pott) /simplified unblocking logic • permissive underreach tran...

  • Page 18

    I.L. 40-386.4 1-4 1.3.2 rel301/302 inner chassis the inner chassis (figure 1-5) consists of a frame, 2 switchjaws and the following modules. Each module is identified by silk screen label. • pt module: consisting of 3 voltage transformers for v an , v bn and v cn . • ct module: consisting of 4 curre...

  • Page 19

    I.L. 40-386.4 1-5 of the checks are broken into small parcels, so that the whole complement of tasks is performed over a one-cycle period (eight passes through the loop). Some checks are performed more than once per cycle (e.G. Critical timers). The rel301/302 sampling software has 8 states; these s...

  • Page 20

    I.L. 40-386.4 1-6 tion from the remote terminal. The remote terminal recognizes the loss of load-current in the unfaulted phase(s) as evidence of tripping of the remote breaker. This, coupled with zone-2 dis- tance or directional overcurrent ground-fault recognition at the remote terminal, allows im...

  • Page 21

    I.L. 40-386.4 1-7 1. 6. Specifications 1.6.1 technical 1.6.2 external connections terminal blocks located on the rear of the chassis suitable for #14 square tongue lugs. Wiring to ft-10 switches suitable for #12 wire lugs. 1.6.3 contact rating data trip rated contacts - make & carry 30 amps for 1 se...

  • Page 22

    I.L. 40-386.4 1-8 all contacts support 1000 vac across open contacts contacts also meet applicable standards: iec - 255-6a, iec - 255-12, iec -255-16, bs142-1982. 1.6.4 chassis dimensions and weight height: 17.875" (453.7 mm) width: 5.876" (149 mm) depth: 6.626" (168 mm) weight: 24 lb (16 kg.) for h...

  • Page 23

    I.L. 40-386.4 1-9 mounting horizontal - - - - - - - - - - - - - - - - - - - - - - - - h vertical- - - - - - - - - - - - - - - - - - - - - - - - - - v trip 3-pole trip - - - - - - - - - - - - - - - - - - - - - - - - 3 self polarized ground distance - - - - - - - - - - - - - - p current 1 a - - - - - ...

  • Page 24

    I.L. 40-386.4 1-10 2682f39 sheet 1 of 2 *sub 2 figure 1-2. Rel301/302 layout. (vertical).

  • Page 25

    I.L. 40-386.4 1-11 2682f39 sheet 2 of 2 *sub 2 figure 1-3. Rel301/302 layout. (horizontal) 8-32 fillister head screw (4 supplied).

  • Page 28

    I.L. 40-386.4 1-14 figure 1-6 rel301/302 relay program functions esk00252 dtp power on -initialization -self-checks mode = background start sample v and i dc offset correction compute v and i phasors using fourier algorithm mode? Fault background disturbance in v or Ι? Mode = fault relaying calculat...

  • Page 29

    I.L. 40-386.4 2-1 2. 1 introduction both the rel301/302 relay systems detect faults in three zones of phase and ground distance. Zones 1 and 2 are forward set, zone-3 can be set forward or reverse. Rel302 has a separate pilot zone (see section 2-5). The r-x diagram, figure 2-1, shows a composite of ...

  • Page 30

    I.L. 40-386.4 2-2 where v xg = v ag , v bg , or v cg i x = i a , i b or i c z 1l , z 0 l = positive and zero sequence line impedance in secondary ohms. I 0 = 1/3(i a +i b +i c ) z cg = zone reach setting (“zone1 g”, “zone2 g”, “zone3 g” and “pilot g”) 1 in secondary ohms for Øg fault v q = quadratur...

  • Page 31

    I.L. 40-386.4 2-3 2.3.1 zone-1 trip (figure 2-5) for zone-1 phase faults, the z1p units will identify the fault and operate. The 3Ø fault logic is supervised by the load restriction logic via and131c at and 131. Oversight of zone-1 3Ø trip logic, via and 131, includes supervision by the selectable o...

  • Page 32

    I.L. 40-386.4 2-4 *note: the curves commonly used with electromechanical (e/m) overcurrent relays are a com- posite, average result of considerable testing. Overcurrent characteristics utilized in the rel301/302 are the result of calculations which do not exactly emulate e/m overcurrent relay charac...

  • Page 33

    I.L. 40-386.4 2-5 if “t2Ø type” and/or “t2g type” are selected as “torque control” then tables 3, 4 and 5 settings apply: 2.3.3 zone-3 trip (figure 2-7) for zone-3, phase faults, the z3p (“zone-3Ø”) logic will identify faults in the forward or reverse direction, depending on the “zone-3” setting, an...

  • Page 34

    I.L. 40-386.4 2-6 2.3.4 zone-1 extension (figure 2-8) this scheme provides a higher speed operation on end zone-faults without the application of a pilot channel. If the rel301/302 “systtype” setting is set to “zone-1 extension”, the zone-1 phase/zone-1 ground (z1p/z1g) unit will provide two outputs...

  • Page 35

    I.L. 40-386.4 2-7 note: the curves commonly used with electromechanical (e/m) overcurrent relays are a composite, average result of considerable testing. Overcurrent characteristics utilized in the rel301/302 are the result of calculations which do not exactly em- ulate e/m overcurrent relay charact...

  • Page 36

    I.L. 40-386.4 2-8 2.4.4 loss of current supervision (figure 2-12) the ac current monitoring circuit uses iom and not vo as criterion, as shown. Under ct short circuit or open circuit condition, iom and not vo satisfies and 23; the output signal of and 23 starts the 10/0.5 second timer. The timer out...

  • Page 37

    I.L. 40-386.4 2-9 and a common set of voltage transformers. Each relay trips the main breaker and the power transformer secondary breaker, for faults on the line section being protected (e.G. Relay #2 trips 52 and 52-2). Classic close into fault logic produced false tripping of one secondary breaker...

  • Page 38

    I.L. 40-386.4 2-10 pending on the type of fault. The and 24 output signal changes from “1” to “0” and satisfies and 25. After 10 milliseconds, this output by-passes the remaining t2 timer, and provides accelerat- ed zone-2 trip. The (10/0 millisecond) time delay is for coordination on external fault...

  • Page 39

    I.L. 40-386.4 2-11 2.4.13 instantaneous reverse directional overcurrent ground (rdog) similar to fdog, the instantaneous reverse directional overcurrent ground function (rdog) su- pervises the ground units to prevent false tripping. 2.4.14 programmable reclose initiation and reclose block logic (fig...

  • Page 40

    I.L. 40-386.4 2-12 2.4.15 output contact test a “push-to-close” feature is included in order to check all output relay contacts, which include trip, bfi, ri2, rb, al1, al2, gs, carrier send (pilot), carrier stop (pilot) and each program- mable contact output (if supplied). The relay contact check is...

  • Page 41

    I.L. 40-386.4 2-13 2.4.17 fault and oscillographic data the following sections explain the mechanisms for data capture and retrieval. As mentioned in section 1.5, communication port access requires remote communications program (rcp) software. 2.4.17.1 fault data rel301/302 systems capture the lates...

  • Page 42

    I.L. 40-386.4 2-14 “zone-2” – data taken if zone-2 units pick up or any trip action occurs “zone-2, zone-3” – data taken if zone-2 or zone-3 units pick up, or any trip action occurs. “dv or di” – data taken if di, dv, zone-2 or zone-3 units pick up, or any trip action occurs note: see section 2.4.10...

  • Page 43

    I.L. 40-386.4 2-15 the basic operating concepts of a simplified unblocking scheme are the same as the pott scheme, except for differences in applied pilot channel equipment. In an unblocking scheme, the pilot channel is a frequency-shift type power line carrier. The transmitter frequency must be dif...

  • Page 44

    I.L. 40-386.4 2-16 34b (echo) which will cause a send signal via or 18. This echo keying will be continue for 150 millisecond or less if any inputs to and 34b change state (e.G. Receive input stops). (3) signal continuation this logic includes an input from the trsl signal and a 0/150 millisecond (m...

  • Page 45

    I.L. 40-386.4 2-17 g. Programmable reclosing initiation (figure 2-18) the basic programmable reclose initiation application is as described in section 2.4.14. How- ever, on pilot systems, to activate the reclose initiate output ri2, for any high-speed trip, the ext. Pilot enable sw. (figure 2-18) mu...

  • Page 46

    I.L. 40-386.4 2-18 2.5.1.3 directional comparison blocking (figure 2-24) if a directional comparison blocking (blocking) system is desired, the system type setting “syst type”, is set to “blocking”. Refer to section 2.5.1 for other recommended settings for blocking systems. Basic operating concepts ...

  • Page 47

    I.L. 40-386.4 2-19 4) since the present keying practice on carrier systems use either the contact open (negative or positive removal keying) or contact close (positive keying) approach, a form-c dry con- tact output for send is provided in rel302. 5) signal continuation and tbm logic for a reverse f...

  • Page 48

    I.L. 40-386.4 2-20 2.5.2 pilot ground overcurrent pilot ground overcurrent supplement is added for high resistance faults and improves security on pott/unblocking schemes on some special power system conditions, such as shown in fig- ure 2-25. A ØØg fault is on the paralleled line section. Due to th...

  • Page 49

    I.L. 40-386.4 2-21 2.5.5 3-terminal line application for blocking 3-terminal line applications, since the frequency of the 3 transmitters are the same, any one transmitter starting will block the pilot system from tripping, therefore, logic for the 3-ter- minal pilot system would be the same as that...

  • Page 50

    I.L. 40-386.4 2-22 permission is received from the weak terminal. The pilot trip relay(s) at the weak terminal cannot operate since there is insufficient fault energy, and does not perform the normal key- ing function. With one weakfeed condition, when the weak end receives a permissive (or unblocki...

  • Page 51

    I.L. 40-386.4 2-23 figure 2-2. Mho characteristic for phase-to-ground faults figure 2-1. Rel301/302 characteristics/r-x diagram 9651a57 sub 3 9654a13 sub 2.

  • Page 52

    I.L. 40-386.4 2-24 figure 2-3. Mho characteristics for three-phase faults (no load flow) figure 2-4. Mho characteristics for phase-to-phase and two phase-to-ground faults (no load flow) 9654a14 sub 1 sub 1 9654a15.

  • Page 53

    I.L. 40-386.4 2-25 figure 2-5a. Logic drawing symbols and and inputs a b output inputs output a b 0 0 i i 0 i 0 i 0 0 0 i a b electromechanical contact equivalent signal on all inputs required to provide an output notes: i – active state of a signal (may be defined as positive or negative voltage or...

  • Page 54

    I.L. 40-386.4 2-26 figure 2-6. Zone-2 trip logic figure 2-5. Zone-1 trip logic 9657a49 * sub 2 9657a50 *sub 2 * denotes change.

  • Page 55

    I.L. 40-386.4 2-27 f igure 2-8. Zone-1 extension scheme figure 2-7. Zone-3 trip logic 1503b49 * sub 2 9662a64 *sub 1.

  • Page 56

    I.L. 40-386.4 2-28 9657a61 * sub 1 figure 2-9. Inverse time overcurrent ground backup logic 9662a65 * sub 1 figure 2-10. Loss-of-potential logic.

  • Page 57

    I.L. 40-386.4 2-29 figure 2-12. Loss of current monitoring logic figure 2-11. Loss-of-potential logic (system diagram) * sub 2 9657a54 9654a18 sub 1.

  • Page 58

    I.L. 40-386.4 2-30 figure 2-14. Instantaneous overcurrent highset trip logic figure 2-13. Overcurrent supervision 9662a66 * sub 1 9657a58 sub 1.

  • Page 59

    I.L. 40-386.4 2-31 f igure 2-16. Unequal-pole-closing/load pickup trip logic & reverse block (tbm) logic figure 2-15a. Rel301/302 close-into-fault trip (cift) logic 9657a55 sub 2 9661a32 * sub 2 figure 2-15b. Special application for cif logic with time delay pickup 9657a56 * sub 2.

  • Page 60

    I.L. 40-386.4 2-32 figure 2-17. Load loss accelerated trip logic 9657a59 * sub 2 1503b51 * sub 3 figure 2-18. Reclosing initiation logic 1503b50 * sub 2 figure 2-19a. Out-of-step block logic.

  • Page 61

    I.L. 40-386.4 2-33 figure 2-20. Rel302 pott/unblocking, putt and blocking pilot relay 9657a63 * sub 2 9654a25 sub 1 figure 2-18b. Out-of-step block logic (blinder characteristics).

  • Page 62

    I.L. 40-386.4 2-34 figure 2-21. Rel302 pott/unblocking and putt pilot trip logic figure 2-22. Rel302 channel sending/receiving logic in pott/unblocking schemes 9662a67 * sub 1 1503b52 * sub 2.

  • Page 63

    I.L. 40-386.4 2-35 figure 2-23. Rel302 channel sending /receiving logic in putt scheme 1503b53 * sub 2 9657a62 * sub 2 figure 2-24. Rel302 blocking system logic.

  • Page 64

    I.L. 40-386.4 2-36 figure 2-25. Power reversal on pott/unblocking schemes 9654a17 sub 1 figure 2-26. Unequal pole closing on fault 9654a29 sub 1.

  • Page 65

    I.L. 40-386.4 2-37 figure 2-28. Rel302 additional logic for pott/unblocking schemes on 3-terminal line application 9662a68 * sub 1 figure 2-27. Rel302 pilot ground trip supplemented by fdog 9657a65 * sub 3.

  • Page 66

    I.L. 40-386.4 2-38 figure 2-30. Rel302 weakfeed application 9662a69 *sub 1 figure 2-29. Rel302 additional logic for putt scheme on 3-terminal line application 1503b54 * sub 2.

  • Page 67

    I.L. 40-386.4 2-39 figure 2-31. Rel302 reversible zone-3 phase and ground (reverse block logic) 1503b55 * sub 2.

  • Page 75

    I.L. 40-386.4 3-1 3.1. Measurement units and setting ranges distance measurements • three variable mho phase-to-ground units and one variable mho phase-to-phase impedance unit per zone. Three zones phase and ground distance (zone-1, 2, 3): 0.01 - 50 ohms in 0.01 ohm steps for 5 a (ct type) 0.05 - 25...

  • Page 76

    I.L. 40-386.4 3-2 • one inverse overcurrent ground unit with co characteristics (see figures 2-32 through 2- 38) for ground backup: pickup (0.5 - 4.0) in 0.1 a steps for 5 a (ct type). Choice of 7 time-curve families (co-2, 5, 6, 7, 8, 9, 11 characteristics), 63 curves per family with instantaneous ...

  • Page 77

    I.L. 40-386.4 3-3 • current transformer ratio: rc = 1200/5 = 240 • voltage transformer ratio: rv = 600/1 = 600 relay secondary ohmic impedances are: z = z pri x r c /r v z1l = z2l = 15 ∠ 77˚ z 0l = 50 ∠ 73 ° x 240/600 = 20 ∠ 73 ° ohms 3.2.1 ratio of zero and positive sequence impedances (zr) z 0l /z...

  • Page 78

    I.L. 40-386.4 3-4 1) if the calculated zone-1 impedance is 0.5 ohms (secondary) or less the line percentage, used for the calculation, should be 70-75%. 2) if the source impedance ratio or sir, (ratio of positive sequence source impedance to positive sequence line impedance) is in the range of 3-5 t...

  • Page 79

    I.L. 40-386.4 3-5 note: it should be set above the maximum tapped load current if applicable. Assume that the line charging current is negligible for this line section and the minimum load current is 2.0 amps secondary, then the low set phase overcurrent unit setting should be: “low iØ” = “1 amps” b...

  • Page 80

    I.L. 40-386.4 3-6 • inner blinder should not operate on severe stable swings • outer blinder must have adequate separation from inner blinder for fastest out-of-step swing to be acknowledged as an out-of-step condition • outer blinder must not operate on load a. Setting the inner blinder if the out ...

  • Page 81

    I.L. 40-386.4 3-7 for slow out-of-step swings, a reasonably close placement of outer to inner blinder charac- teristic is possible. The separation must, however, be based on the fastest out-of-step swing expected. A 50 ms interval is inherent in the out-of-step sensing logic, and the outer blinder m...

  • Page 82

    I.L. 40-386.4 3-8 note: t3Ø time and t3g time are separate timers; they can have different time settings if the application requires. D. For out-of-step block (“os block”), if applied, the out-of-step block override timer set- ting (“osot”) is determined by the power system operation. Its range is 4...

  • Page 83

    I.L. 40-386.4 3-9 similarly, three settings “t2g cv”, “t2g pkup”, “t2g tc” must be determined to apply ground, torque controlled overcurrent protection. Similar to any overcurrent application, the same criteria as in a, b, and c above are used to select appropriate settings for ground, torque contro...

  • Page 84

    I.L. 40-386.4 3-10 3.3. Required settings application the following settings are determined by the application. They do not require calculation. 3.3.1 oscillographic data (“osc data”) capture setting the osc setting is for selecting one of the 4 choices, “trip”, “z2tr”, “z2z3” or “ ∆ i ∆ v”, to init...

  • Page 85

    I.L. 40-386.4 3-11 for this example, set “ct type” = 5 since a 5 amp current transformer is used. The setting of “ct type” affects all the distance unit and overcurrent unit setting ranges. The ranges will be automatically changed as listed in table 3-1. 3.3.7 read primary setting (“read out”) the “...

  • Page 86

    I.L. 40-386.4 3-12 3.3.14 system type selection (“systtype”) “systtype” selects the desired relaying system for the application. Rel 301 has two setting choices: “non pilot” and “zone-1 extension”. Rel 302 has five setting choices: “non pilot”, “zone-1 extension”, “pott” (permissive overreach transf...

  • Page 87

    I.L. 40-386.4 3-13 3.3.19 positive sequence impedance line angle (“ang pos.”) 3 set the positive sequence line impedance angle setting “ang pos.”, to the value of the posi- tive sequence line impedance angle. From the example data (section 3.2), the setting would be “ang pos.” = “77 o ”. 3.3.20 zero...

  • Page 88

    I.L. 40-386.4 3-14 for the best sensitivity, “gb pickup” should be set at 0.5 amperes, this is normally ade- quate for most applications. C. “gbt curve” is the time delay setting of the ground backup function. As shown in figures 2-32 through 2 -38, the “gbt curve” is settable in steps of one from 1...

  • Page 89

    I.L. 40-386.4 3-15 3.3.25 close-into-fault trip setting (“cif trip”) set “cif trip” setting by selecting the value field “cif trip” if line side potential is used to sup- ply the relay. See section 2.4.7 for special applications of close-into-fault logic. 3.3.26 load loss trip setting (“ll trip”) se...

  • Page 90

    I.L. 40-386.4 3-16 table 3-1. T rip time constants for curves curve # t0 k c p r c02 111.99 735.00 0.675 1 501 c05 8196.67 13768.94 1.13 1 22705 c06 784.52 671.01 1.19 1 1475 c07 524.84 3120.56 0.8 1 2491 c08 477.84 4122.08 1.27 1 9200 c09 310.01 2756.06 1.35 1 9342 c011 110 17640.00 0.5 2 8875 tabl...

  • Page 92

    I.L. 40-386.4 4-1 section 4. Installation and operation 4. 1. Separating the inner and outer-chassis it is recommended that the user of this equipment become acquainted with the information in these instructions before energizing the rel 301/302 and associated assemblies. Failure to ob- serve this p...

  • Page 93

    I.L. 40-386.4 4-2 1. Contact rating information see section 1.6 connection specification chart location notes analog inputs see figure 4-2 voltages and currents signal inputs non-pilot connection 52a 52b ext reset pilot connection rel 302 (add following connections) plt ena rcvr1 rcvr2 reclosing/syn...

  • Page 94

    I.L. 40-386.4 4-3 led color condition protection leds protection in service yellow on– for normal condition of dc power successful self-check self-test routines off – any of the above failed pilot red pilot tripped zone-1 red zone 1 tripped zone-2 red zone 2 tripped zone-3 red zone 3 tripped ag red ...

  • Page 95

    I.L. 40-386.4 4-4 4.4.2.1 front panel operation there are five different modes, described below: mode as displayed settings [set] metering [meter] last-fault [l-flt] previous-fault [p-flt] test [test] by keeping the select push-button depressed, the list of modes is scrolled in the sequence shown ab...

  • Page 96

    I.L. 40-386.4 4-5 to scroll through the metered data press the lower or raise push-buttons. C. Target mode (last-fault and previous-fault) rel 301/302 saves the 16 latest fault records. See table 4-3, for complete listing. The l-flt is the most recent fault, the p-flt is the one prior to the l-flt. ...

  • Page 97

    I.L. 40-386.4 4-6 relay output test all relay outputs can be tested using the procedure described below (1) open the red ft switches, of the breaker trip circuits, making sure that the following ft switch is not opened: ft-5 bfi/reclose enable (2) move the spare blue jumper to position jp5 on the mi...

  • Page 98

    I.L. 40-386.4 4-7 4. 6. Communication port(s) use 4.6.1 introduction rel 301/302 can be communicated with for target data, settings, etc., through the man-ma- chine interface (mmi), the relay can also be communicated with via one of the communication (comm.) ports. Comm port communications, provides...

  • Page 99

    I.L. 40-386.4 4-8 232c standard describes mechanical, electrical, and functional characteristics. This standard is published by the electronics industry association (eia) and use of the standard is voluntary but widely accepted for electronic data transfer. Abb relay communications follows the rs-23...

  • Page 100

    I.L. 40-386.4 4-9 ting changes via the mmi. Blocking the front panel setting changes, may be useful for situations in which the access to the relay cannot be secured from tampering by unauthorized persons. Password: when the rel 301/302 is received from the factory of if the user loses the relay pas...

  • Page 101

    I.L. 40-386.4 4-10 4.7.3 troubleshooting in the event the communication remains unsuccessful, first make sure that the front communi- cation push-button has been depressed, the relay is powered and the connection is solid. For further testing, remove the front cover and check that the bit rate (baud...

  • Page 102

    I.L. 40-386.4 4-11 insert key. T for logic true or f for logic negation will show at that position. If is desired to remove the selection, the delete key can be used to de-select a previously selected function. If a contact is to be controlled by several functions, the same procedure applies for eac...

  • Page 103

    I.L. 40-386.4 4-12 to complete isolation of the failed breaker. If current above the settings of im or iom is not present, at the end of the breaker failure time, all logic simply resets. Breaker failure timing con- siderations are shown in the table above.L 2. Rel 301/302 contact programming each r...

  • Page 104

    I.L. 40-386.4 4-13 contact c p p 3 s 3 e p s p a i z z z z l l i e o r i c c v i z z c l w t 5 i b l output o n f 2 2 3 3 g t t o n s i o r r 0 t 1 1 h t r f o 2 t i l f o # r d t p g p g b g p s d b 2 m 1 2 t g g p o x b t p a p m v i p 1 2 3 x t t 4 x t t 5 contact 1 pickup timer = msec contact 1 ...

  • Page 105

    I.L. 40-386.4 4-14 figure 4-1. Rel 301/302 terminals dtp drawing 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 output 1 output 2 1 2 3 4 5 6 7 8 9 10 1 2 3 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 communications port connector use mounting stud for case grounding.

  • Page 106

    I.L. 40-386.4 4-15 figure 4-2. Rel 301/302 systems external connection *sub 2 1613c80 sheet 1 of 2 legend 43 – control switch, automatic, manual (closed in automatic) 52 – circuit breaker aa – aux. Sw. (early close when breaker closes) a – aux. Sw (closed when breaker is closed) bb – aux. Sw. (early...

  • Page 107

    I.L. 40-386.4 4-16 figure 4-3. Rel 301/302 systems external connection sub 3 1613c80 sheet 2 of 2 * see sheet 1 for details of ft switch1 connections * denotes change.

  • Page 108

    I.L. 40-386.4 4-17 figure 4-4. Rel 301/302 breaker failure dc schematic 52 tc 52a 86 bf + dc supply voltage - dc supply voltage 86 bf oc1 oc2 oc3 oc4 bf time 1 bf time 2 trip a1 ft-6 ft-8 tb1-3 tb1-2 tb3-17 tb3-18 tb3-12 tb3-11 tb3-19 tb3-20 breaker failure trip cc bfia-1 62x other 52a tb4-4 tb4-3.

  • Page 109

    I.L. 40-386.4 4-18 table 4-1 setting display (3 pages) setting function field value field front panel rcp front panel rcp software version version version numerical numerical oscillographic data initiation osc data osc trip/zone2/zone2, zone3/dv or di trip/z2tr/z2z3/ dvdi fault data initiation flt d...

  • Page 110

    I.L. 40-386.4 4-19 zone1 delay trip timer t1 timer t1 0 - 15 cycles 0 - 15 cycl zone2 phase unit zone2 Ø z2p disabled/0.01 - 50.00 ohms out/0.01-50.00 ohms zone2 phase timer – timer type – definite time – torque control co curve (with time delay or inst. Reset) – torque control pickup – torque contr...

  • Page 111

    I.L. 40-386.4 4-20 osb inner blinder os inner rt 1.00 - 15.00 ohms 1.0 - 15.0 ohms osb outer blinder os outer ru 3.00 - 15.00 ohms 3.00 - 15.00 ohms directional overcurrent dir type diru zero sequence negative sequ dual polariz zseq nseq dual directional overcur- rent ground backup time curve family...

  • Page 112

    I.L. 40-386.4 4-21 table 4-2 metering display front panel function field value field phase a current (magnitude & angle) ia: magnitude (a) and angle ( ° ) phase a voltage (magnitude & angle) vag: magnitude (v) and angle ( ° ) phase b current (magnitude & angle) ib: magnitude (a) and angle ( ° ) phas...

  • Page 113

    I.L. 40-386.4 4-22 table 4-3 target (fault data) display (2 pages) information function value front panel rcp front panel rcp fault type flt type ftyp ag/bg/cg/ab/bc/ca/abg/ bcg/cag/abc/blank if other/test ag/bg/cg/ab/bc/ca/ abg/bcg/cag/abc/ blank if other/test breaker 1 tripped breaker 1 bk1 yes/no...

  • Page 114

    I.L. 40-386.4 4-23 3v0 fault voltage 3v0 flt 3v0 mag ang magnitude volts angle (°) volts deg. Phase a fault cur rent ia flt ipamag ang magnitude volts angle (°) volts deg. Ph as e b fault current ib flt ipb mag ang magnitude volts angle (°) volts deg. Phase c fault current ic flt ipcmag ang magnitud...

  • Page 115

    I.L. 40-386.4 4-24 list of the 30 functions to choose from for the programmable contact outputs. Function description or logic or when several functions are combined and logic and when several functions are combined cift close into fault trip z2p zone2 phase pickup z2g zone2 ground pickup z3p zone3 ...

  • Page 116

    I.L. 40-386.4 4-25 table 4-5 communications cable requirements * note: a communications cable kit (item identification number 1504b78g01) that will accommodate most connection combinations (* in table 4-5), is available through your local abb represen- tative. Connection type cable (straight = no nu...

  • Page 117

    I.L. 40-386.4 4-26 table 4-6 dip switch setting chart table 4-7 rs-poni (9-pin) communications speed setting dip switch pole 1 2 3 port data rate (bps) 0 0 0 300 logic 1 is towards printed circuit board dip switch poles 4 & 5 are not used 0 0 1 1200 0 1 0 2400 0 1 1 4800 1 0 0 9600 1 0 1 19200 1 1 0...

  • Page 118

    I.L. 40-386.1 5-1 purpose the purpose of this procedure is to provide a test that can be used for incoming inspection or to determine at any time if the rel 301 or 302 is functioning correctly. The acceptance test confirms that a particular unit is serviceable with a minimum of time and effort. Duri...

  • Page 119

    I.L. 40-386.1 5-2 acceptance test before beginning any testing, verify that voltage selectable input, and contact configuration jumpers are in the correct position. The following tables, with appropriate reference figures, will provide a guide for the jumper settings. In-service settings may vary ac...

  • Page 120

    I.L. 40-386.1 5-3 to prepare the relay for testing, it is necessary to make certain test connections. Test connec- tions can be made to the rear terminals of the relay, or through test plugs and built-in ft switch- es. The easiest connection, for the voltage and current inputs, is through the ft tes...

  • Page 121

    I.L. 40-386.1 5-4 press the s elect push-button and scroll to the “test” display. The display should read “sta- tus” “0” indicating the self-checking/startup/initialization routine was completed successfully and the system is continuously passing the self-checking routine. Step 2 press the s elect p...

  • Page 122

    I.L. 40-386.1 5-5 apply a balanced 3-phase voltage: v a = 70 ang 0 ° v b = 70 ang -120 ° v c = 70 ang 120 ° failure alarm (al-1) relay contacts (terminals tb3-25 and tb3-26) are closed before the bal- anced voltage is applied. After applying the balanced voltage verify the normally closed contacts a...

  • Page 123

    I.L. 40-386.1 5-6 using the following table, failure mode can be determined by equating bit numbers (from above) to failure description. A bit set to “1” indicates the corresponding failure has been detected. For reference the binary-to-hexadecimal conversion is shown below: relay status failure mod...

  • Page 124

    I.L. 40-386.1 5-7 b. The “test” display mode also provides access for testing for rel 301/302 output relay contacts. All output relays will be tested using the procedure described in step 12. In asso- ciation with the contact test, receiver 1 and/or 2 units can be simulated for verification of rel 3...

  • Page 125

    I.L. 40-386.1 5-8 using: x = 75 ° (lagging) v ln = fault voltage chosen for faulted phase, in this example 30 volts the current required to trip = 4.00a +/- 5 % for fault current lagging fault voltage by 75 ° . This is the maximum torque angle test. For other points on the mho circle, change x to a ...

  • Page 126

    I.L. 40-386.1 5-9 step 7 using the test connections shown in figures 5-5 and 5-6, repeat step 6 above for b phase-to- ground (bg) and c phase-to-ground (cg) faults respectively. The test voltages are shown be- low: for bg fault test, make connections as shown in figure 5-5 and adjust the voltages as...

  • Page 127

    I.L. 40-386.1 5-10 again apply an ag fault. Again the zone 1 and ag leds will light and begin flashing. The lcd display will switch to the “l-flt” mode and fault distance will be displayed. Apply rated dc volt- age to terminals tb4-7(+) and tb4-8(-). The lcd will display “flt type”, all fault data w...

  • Page 128

    I.L. 40-386.1 5-11 the significant quantities to review are: fault type – “flt type” “ag” targets – “gb trip” “yes” fault voltages (va, vb, vc, 3v0) and currents (ia, ib, ic, ip) using the same test connection, as above, the system should not trip at any of the following an- gles of i a : • all angl...

  • Page 130

    I.L. 40-386.1 5-13 the significant quantities to review are: fault type — “flt type” “ag” targets — “pilot g” “yes” fault voltages (va, vb, vc, 3v0) and currents (ia, ib, ic, 3i0) pressing the front panel r eset push-button will cause the lcd display to switch to the “meter” display and the leds wil...

  • Page 131

    I.L. 40-386.1 5-14 and l ower push-buttons the complete fault record can be reviewed. See table 4-3 for a description of the displayed fault data quantities. The significant quantities to review are” fault type — “flt type” “ag” targets — “pilot g” “yes” fault voltages (va, vb, vc, 3v0) and currents...

  • Page 132

    I.L. 40-386.1 5-15 • proper seating of subassemblies • condition of external wiring • appearance of printed circuit boards and components • signs of overheating in equipment 5.3.1.4 perform the acceptance test performing this test is optional if all other test results are acceptable. 5. 4. Calibrati...

  • Page 133

    I.L. 40-386.1 5-16 17) turn “on” the dc power supply and adjust pot p15 until the value display reads 0 or ffff hex. 5.4.3 real-time clock calibration on microprocessor module 18) connect a precision period counter instrument to tp1, on the microprocessor module and tp7 (common) on the input/filter ...

  • Page 134

    I.L. 40-386.1 5-17 figure 5-1. Filter (input) module 1612c34 sheet 3 of 3 *sub 2 52a 52b ext reset pilot rcvr rcvr sync check reference 2 1 enable not used 220/ 250 48/ 125 15/20 220/ 250 48/ 125 15/ 220/ 250 48/ 125 20 15/20 15/ 220/ 250 48/ 125 20 15/ 220/ 250 48/ 125 20 220/250 15/20 48/125 * * *...

  • Page 135

    I.L. 40-386.1 5-18 figure 5-2. Power supply/output module jmp1 no nc jmp2 no nc jmp5 no nc jmp4 no nc jmp3 no nc jmp6 nc no jmp7 nc no carrier stop carrier send oc 4 oc 3 al - 1 al - 2 oc 2 1612c68 sheet 4 of 4 *sub 4.

  • Page 136

    I.L. 40-386.1 5-19 figure 5-3. Microprocessor module jp6 jp5 jp3 jp4 clock battery 1613c55 sheet 3 of 3 *sub 6 variable capacitor for clock calibration.

  • Page 137

    I.L. 40-386.1 5-20 figure 5-4. Test connection for aØ - ground test + - va vb vc if + - + - + - rel 301/302 (front view) rated dc voltage (+) (-) (check nameplate) ❋ install this jumper if dual polarizing not used ❋ 1 2 3 4 5 6 7 10 9 8 20 19 18 17 16 15 14 11 12 13.

  • Page 138

    I.L. 40-386.1 5-21 figure 5-5. Test connection for bØ-ground test + - va vb vc if + - + - + - rel 301/302 (front view) rated dc voltage (+) (-) (check nameplate) ❋ ❋ install this jumper if dual polarizing not used 1 2 3 4 5 6 7 10 9 8 20 19 18 17 16 15 14 11 12 13.

  • Page 139

    I.L. 40-386.1 5-22 figure 5-6. Test connection for cØ-ground test + - va vb vc if + - + - + - rel 301/302 (front view) rated dc voltage (+) (-) (check nameplate) ❋ install this jumper if dual polarizing not used ❋ 1 2 3 4 5 6 7 10 9 8 20 19 18 17 16 15 14 11 12 13.

  • Page 140

    I.L. 40-386.1 5-23 figure 5-7. Test connection for aØ-ground test (dual polarizing) + - va vb vc if + - + - + - rel 301/302 (front view) rated dc voltage (+) (-) (check nameplate) ip + - 1 2 3 4 5 6 7 10 9 8 20 19 18 17 16 15 14 11 12 13.

  • Page 141

    I.L. 40-386.1 5-24 table 5-4. Rel 301 settings (non-pilot system) (as displayed on front panel lcd) version x.Xx osc data trip flt data trip ct ratio 1000 vt ratio 2000 freq 60 hz ct type 5 amps read out secondary units x/dist 0.500 Ω /km dist unit kilometers ri type no ri fast ri z1/inst i zone 2 r...

  • Page 142

    I.L. 40-386.1 5-25 table 5-5. Rel 302 settings (pilot system) (as displayed on front panel lcd) version x.Xx osc data trip flt data trip ct ratio 1000 vt ratio 2000 freq 60 hz ct type 5 amps read out secondary units x/dist 0.500 Ω /km dist unit kilometers ri type no ri fast ri z1/inst i zone2 ri no ...

  • Page 143

    I.L. 40-386.1 5-26 table 5-6 rel 301/302 reference drawings drawing name drawing number (sheet numbers) general drawing 2678f11 (1,2,3,4) filter module schematic 1612c33 (1,2) filter module assembly 1612c34 (1,2,3) backplane module schematic 1357c85 backplane module assembly 1612c53 (1,2,3) power su...