Schweitzer Engineering Laboratories SEL-221F Manuale utente

SEL-221F

SEL-221F-1

PHASE AND GROUND DISTANCE RELAY

GROUND DIRECTIONAL OVERCURRENT RELAY

SYNCHRONISM CHECKING RELAY

RECLOSING RELAY

FAULT LOCATOR

INSTRUCTION MANUAL

SCHWEITZER ENGINEERING LABORATORIES

2350 NE HOPKINS COURT

PULLMAN, WA 99163-5603

TEL: (509) 332-1890 FAX: (509) 332-7990

The software (firmware), schematic drawings, relay commands, and relay messages are copyright

protected by the United States Copyright Law and International Treaty provisions. ll rights are

reserved.

You may not copy, alter, disassemble, or reverse-engineer the software. You may not provide the

software to any third party.

The schematics and parts lists are provided solely for the purpose of product maintenance.

( ll rights reserved)

Printed in US

Patents Pending

Standard Product Warranty – Ten Years

EFINITION OF

ERMS

Product: ll items manufactured by SEL that are sold to a customer.

New Product:

product manufactured by SEL that is sold for the first time.

Customer: n end-user of the product.

RODUCT

ARRANTY

ll new products sold to customers are warranted against defects in design, materials, and

workmanship for a period of ten (10) years from the date of first retail delivery to a customer. If

it is determined that the new product defect is covered under this warranty, SEL will repair,

replace, or substitute an identical unit at its own discretion to the customer at no charge.

SEL may, at its own discretion, require the customer to ship the unit back to the factory for

diagnosis before making a determination as to whether it is covered by this warranty. In such

event, SEL may, at its own discretion, decide to provide the customer with a substitute unit which

may be sent to the customer either from the SEL factory or from an authorized representative or

distributor from their inventory.

ll expenses related to the shipment of defective units back to SEL or the provision of a

substitute unit to the customer are the responsibility of the customer. This expense may include,

but is not limited to, freight, insurance, Customs clearance, and duties. ll expenses related to

the shipment of repaired units back to customers (or the provision of a new unit to the customer)

will be borne by SEL.

RODUCT

PGRADE

OLICY

From time to time, SEL makes product upgrades to add to or enhance the performance of the

products. Customers of a particular product being issued an upgrade will be notifïed either by

SEL directly or through its authorized representatives or distributors.

Customers who have purchased an annual upgrade policy will receive all upgrades during the

calendar year free of charge. Customers who did not purchase the annual upgrade policy may

purchase each unit upgrade individually. The annual upgrade policy can be purchased at any

time. Regardless of whether the upgrade policy is purchased, SEL will make reasonable efforts

to notify all customers of all available upgrades.

SCHWEITZER ENGINEERING LABORATORIES

2350 NE Hopkins Court



Pullman, WA

99163-5603 USA

P one: (509) 332-1890 Fax: (509) 332-7990

E-mail: [email protected]



Internet: www.selinc.com

QUIPMENT

EPAIR AND

ARRANTY

Repair costs of products not covered under this warranty are paid for by customers. Customers

are responsible for the cost of shipping the products to SEL located at: 2350 NE Hopkins Court,

Pullman, Washington 99163 US .

ll products repaired by SEL will be warranted against defects in material and workmanship for a

period of one year from the date the equipment is retumed to the customer or the remainder of the

new product warranty, whichever is longer.

IMITATIONS

SEL’s warranty does not extend to ( ) SEL’s products subject to (i) improper installation,

connection, operation, maintenance, or storage; (ii) accident, damage, abuse, or misuse; (iii)

abnormal or unusual operating conditions or applications outside the specifïcations for the

product; (iv) a purpose or application in any way different from that for which the products were

designed; or (v) repairs conducted by persons other than SEL employees or an authorized

representative or distributor; (B) Equipment and products not manufactured by SEL. Such

equipment and products may be covered by a warranty issued by the respective manufacturer.

This warranty is in lieu of any other warranties, express or implied, including without limitation,

any warranty of merchantability or fitness for a particular purpose, and is in lieu of any and all

other obligations or liability of SEL. Under no circumstances shall SEL be liable for any

accidential or consequential damages or for any other loss, injury, damage, or expense of any

kind including loss of profits arising hereunder.

To the extent any court, arbitration panel, or other governmental body of competent jurisdiction

shall declare any provision of this warranty invalid or unenforceable by reason of a rule of law or

public policy, all the other provisions hereof shall remain in full force and effect.

All brand or product names in this document are the trademark or registered trademark of their respective holders.

Schweitzer Engineering Laboratories, SELOGIC, Connectorized, and are registered trademarks of Schweitzer Engineering Laboratories.

SEL Standard Product Warranty Date Code 20000120

SEL-221F INSTRUCTION MANUAL ADDENDUM

Kilometer/50 Hz Options

The SEL-221F instruction manual is written for fault locations in terms of miles. If your

SEL-221F relay is ordered with the kilometer line length option, references made in the

instruction manual to miles should be substituted with kilometers.

One exception to the straight substitution of kilometers for miles is the reference in the

instruction manual to the effect of shunt capacitance on the fault location calculation. The line

length equation and associated paragraphs, corrected for a 100-kilometer line, should read:

Shunt capacitance of the transmission line is not taken into account. The capacitance causes the

fault location to appear less remote by, approximately, a factor of 1/cos(bL), where bL is the line

length in radians at 50 Hz. One wavelength at 50 Hz is 5996 kilometers. For example, the line

length of a 100-kilometer line in radians, is:

(100/5996) x 2 x 3.14159 = 0.1048 radians

The indication neglecting capacitance is about cos(0. 1048) = 0.9945 times the actual fault

location, or about 0.55 kilometers short for a fault at the remote end of a 100-kilometer line.

References made to a sampling time of 1/240 seconds should be replaced with a time of 1/200

seconds.

1 Amp Per Phase Option

For this version of the SEL-221F relay, the nominal current is 1 ampere per phase, instead of 5

amperes per phase stated in the specifications section. Secondary quantities should be divided by

five in all calculations of current. The default settings are the same as the 5 ampere relays.

Date Code 961202 SEL-221F Relay ddendum 1

IEC Time-Overcurrent Characteristics Option

The time-overcurrent curves, and their associated equations, in this manual have been modified

to conform to IEC specifications as follows:

Equations for IEC Curves

t = operating time in seconds,

TD = time dial setting,

M = multiples of pickup.

Curve Cl: Standard Inverse

Beyond 20 multiples of pickup, all characteristics become definite-time equal to the time of

M=20.

Curve C2: Very Inverse

Curve C3: Extremely Inverse

Curve C4: Long Time Backup

2SEL-221F Relay ddendum Date Code 961202

Time Curve C1 Time Curve C2

Time Curve C3 Time Curve C4

Date Code 961202 SEL-221F Relay ddendum 3

SEL RELAY INSTRUCTION MANUAL ADDENDUM

ACB PHASE ROTATION OPTION

The SEL relay instruction manuals are written for standard BC phase rotation applications.

If your SEL relay is ordered with the CB phase rotation option, references made in the

instruction manual to voltage and current phase angle should be noted accordingly. The

firmware identification number (FID) may be used to verify whether your relay was ordered

with BC or CB rotation.

ll current and voltage inputs are connected to the SEL relay rear panel as shown in the

instruction manual.

Date Code 930719 SEL Relay ddendum -1

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