C O M P O N E N T S

High-Speed DC Circuit-Breakerfor Fixed InstallationType HPB45 & HPB60

2& HPB60 range a very high reliability and an exception-ally long life time. With its proven worldwide experienceand acceptance, Scheron's range of Circuit-Breakersoffers you the key product for such a strategic and criti-cal application that is to guarantee the highest safety toyour equipment as well as to the people operating it andusing it.

Line Circuit-Breaker type* H/L/B/O for DC traction power substations Interconnecting Circuit-Breaker type* H/I/B/O for DC traction power substations Rectifier Circuit-Breaker type* H/R,lr,r/B/O for DC traction power substation Rolling mill plants, chemical plants, nuclear research centres, mines

* Type designation according to standards EN50123-2/IEC61992-2

Conventional thermal current 4500 A (HPB45) and 6000 A (HPB60) Rated voltage 900 Vdc & 1800 Vdc Rated insulation voltage 3000 Vdc Safe with a high insulation level: Over-Voltage category OV4 Limited maximum arc voltage High rated short-circuit making and breaking capacity Electro-magnetic closing with electric holding or magnetic latch Six double contacts auxiliary switches Low Voltage 30-poles connector interface for auxiliary contacts and control coil as an option High mechanical and electrical endurance Very low maintenance requirements Proven design with worldwide experience and acceptance Insulation material according to relevant BS, NF, ASTM, IEC and DIN standards Designed according to EN50123-1/2, IEC61992-1/2 A large number of different options to match the various applications requirements

The HPB45 & HPB60 are DC high-speed current limitingair Circuit-Breakers, trip free, single pole, bi-directional,with electromagnetic blow-out, electric control circuitsand direct over-current release.

Their simple design and high insulation level combinedwith their compliance to the standards EN50123/IEC61992 for Fixed Installations guarantee to the HPB45

tl [ms]

di/dt [A/s]

0

4

10

16

18

20

14

12

8

6

2

106 107105 32 324 6 832 4 6 8

Relationship between opening time tl andthe initial rate of rise of current di/dt for directinstantaneous over-current release.

Example: for an initial rate of rise of current of3.106A/s, the opening time is about 6.3 ms.

Remark: for a shorter opening time theoption indirect release can be used (referto option paragraph).

Opening time tl

Applications

Main features

Technical diagrams

3Track line supplied by a rectifier

f e d

10.90.80.70.60.50.40.30.20.1

00 0.4 0.6 0.8 12INe/INss

Iss/INss

tc/TNc

>6331.5

16TNc [ms]

d

e

f

d: duty d - distant faulte: duty e - maximum energyf: duty f - maximum fault current

Characteristics of the duties d, e and f

Id

Icut off

Iss

0.63 Iss

I

di/d

t

tcss>1.42Iss

Vt

tt l

arcUNe

Breaking current parameters

Iss = Prospective sustained short-circuit currentss = Peak of IssINss = Rated short-circuit current of the circuit-breakerId = Setting of maximum current releaseIcut off = Cut off currentarc = Maximum arc voltageUNe = Rated operational voltagedi/dt = Initial current rate of risetc = Time-constant of the circuitt l = Opening time TNc = Rated track time constant of the circuit-breaker

Typical dutye and d

Typical duty f

Designation CodeBreaker type HPB HPBConventional thermal current 4500 A 45

6000 A 60Rated voltage 900 Vdc 81

1800 Vdc 82Application Fixed installation SClosing device type Electric holding E

Magnetic holding MNominal control voltage 24 Vdc 024

36 Vdc 03648 Vdc 0 4 872 Vdc 072

110 Vdc 110220 Vdc 220

Varistor on coil No 0Direct over-current instantaneous release 3.0 - 7.0 kA DS1

6.0 - 12.0 kA DS29.0 - 15.0 kA DS3

For HPB60 only: 12.0 - 18.0 kA DS4Pre-set over-current setting x 10 (A) 610 610

Example: 610 x 10 = 6100 AIndirect release No 0Low Voltage connector No AManual tripping No 0Manual closing device No 0Position Indicator No 0Overcurrent release indicator No 0

Type designation HPB 60 81 S E 024 0 DS1 610 0 A 0 0 0 0

Designation code (standard version)

4Symbol Unit HPB45 HPB60

MAIN CIRCUIT

Conventional free air thermal current (Tamb=+40C) Ith [A]- acc. to EN50123-2 / IEC61992-2 4500 6000- acc. to ANSI C37.14-2002 3600 4600- acc. to IEC60947 4500 6000

Rated service current INe [A] 4500 6000

Rated voltage UNe [Vdc]- arc chute type 81 900 900- arc chute type 82 1800 1800

Rated insulation voltage UNm [Vdc] 3000 3000

Rated impulse withstand voltage UNI [kVdc] 20 20

Rated short-circuit making & breaking capacity INSS / TNc- at UNe 900 Vdc [kA]/[ms] 125/100 125/100- at UNe 1800 Vdc [kA]/[ms] 80/31.5 80/31.5

Direct over-current instantaneous release [kA] 3.0 - 7.0 3.0 - 7.0[kA] 6.0 - 12.0 6.0 - 12.0[kA] 9.0 - 15.0 9.0 - 15.0[kA] - 12.0 - 18.0

Power frequency withstand voltage (50 Hz, 1 min) Ua [kV] 12 12

CONTROL CIRCUIT

Nominal voltage Un [Vdc] 24, 36, 48, 72, 96, 110, 220

Nominal closing power (Tamb=+20C) Pc [W]/[s] 1600/1

Nominal holding power for electric holding (Tamb=+20C) [W] 12

Nominal holding power for magnetic holding (Tamb=+20C) [W] 0

Nominal opening power for magnetic holding (Tamb=+20C) [W]/[s] 50/1

Mechanical opening reaction time* at Un and Tamb=+20C To [ms]- Electric type 8-15- Magnetic type 20

Mechanical closing time* at Un and Tamb=+20C Tc [ms] 108 20

* when signal received by the coil

AUXILIARY CONTACTS CIRCUIT

Number of contacts 6a (NO) + 6b (NC)

Rated voltage (potential free contacts) [Vdc] 24 to 110

Rated current [A] 10

Maximum breaking current- Ohmic load at 110 Vdc [A] 1- Inductive load = 15 ms at 110 Vdc [A] 0.3

Minimum let through current at 24 Vdc (1) [mA] 10

(1) For a dry and clean environment

OPERATING CONDITIONS

Ambient temperature Tamb [C] -25 to +40

Minimum mechanical durability N Operations 8x25000

Altitude [m]

5HPB45 HPB60

arc chute 81 108 126arc chute 82 119 137

Circuit breakers weights [kg]

40

120

240

360

40

120

240

411

510

7440

106

120

R = 475

7440

106

120

640520 120

46030 30

640520 120

46030 30

617 (82)

419 (81)

617 (82)

419 (81)

756

5555

756

240

240

= =200

= =200

HPB 45

HPB 60

Main dimensions

6HPB 45

HPB 60

B B AA

B B AA

CC

250

Insulated grid

250

Insulated grid

Minimum distances [mm] (1)

To insulating wall A 50B 145

C(2) 450

To earth A 200B-HPB45 220B-HPB60 500

C(2) 750

(1) At maximum short-circuit breaking capacity. For smaller short-circuit values, smaller distances can be used.(2) Grid with 50% surface opening

Insulating distances

7The indirect release enables to shorten the opening time when required by specific appli-cation. The choice of the relevant type has to be validated by Scheron prior quoting.

Type Mechanical opening time Control mode

- HI2 2.6 - 3.9 ms CID-3*- HI3 7.0 - 12.0 ms Direct battery 110 Vdc (77-140 Vdc)- HI4 7.0 - 12.0 ms Direct battery 220 Vdc (154-280 Vdc)

*Not included in the DC circuit-breaker, to be ordered separately.

Over-currentrelease indicator

Indirect release

Varistor on coil

Type designation HPB 60 81 S E 064 1 DS1 610 2 B 1 1 1 1

Options (subject to additional costs)

Designation Code

Nominal control voltage 64 Vdc 064125 Vdc 125

Varistor on coil Yes 1Indirect release HI2 2

HI3 3HI4 4

Low voltage connector Yes BManual release Yes 1Manual closing device Yes 1Position indicator Yes 1Over-current release indicator Yes 1

Copyright 2008 Scheron SA

This document is not contractual and contains information corresponding to the level of technology at the date of printing. Scheron reserves the right to modify and/or improvethe product, whose characteristics are described in these documents, as required by new technology at any time. It is the purchaser's responsibility to inform himself, no matterwhat the circumstances, of the product's maintenance conditions and requirements. Scheron reserves all rights, especially those arising from our "General Delivery Conditions".

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Scheron SA Rue du Pr-Bouvier 251217 Meyrin - GenevaCH-Switzerland

Tel: +41 22 739 41 11Fax: +41 22 739 48 11info@secheron.comwww.secheron.com

Manual release

Low voltage connector Position indicator

Manual closing device