Eaton S800-64-1 Installation guide

CONTENTS

GENERAL......................................................................1

ELECTRICAL RATINGS...............................................1

INSTALLATION.............................................................2

Step 1 Mount Switch ...............................................2

Step 2 Lead Training ...............................................3

Step 3 Index Plate....................................................3

Step 4 Markings.......................................................4

OPERATING INSTRUCTIONS......................................4

GENERAL

Cooper Power Systems’ RTE

sectionalizing switches

are used in underground residential applications with

loop feed, and in three-phase commercial industrial

installations where the ability to use an alternative source

of power is necessary. They can also be used to switch

on and off a primary cable tap on a transformer.

RTE sectionalizing switches rotate 360° in either

direction for alternate source selection. A spring-loaded

activating mechanism ensures quick loadbreak action

and positive contact engagement through all positions.

The under-oil switch can be installed near the

transformer core/coil assembly, thus minimizing cable

capacitance. With cable capacitance minimized and all

three phases switched simultaneously, the likelihood of

ferroresonance is greatly reduced. Sidewall or cover

mounted switches are hotstick operable and available in

six different blade configurations for one, two or three

pole connections.

ELECTRICAL RATINGS

TABLE 1

Voltage Ratings and Characteristics

TABLE 2

Current Ratings and Characteristics

Loadbreak/Loadmake tested per ANSI/IEEE C37.71.

OEM Equipment

Sectionalizing Switch

Installation Instructions

S800-64-1

Service Information

Printed in U.S.A.

Description 15 kV 25 kV 35 kV

Standard Voltage Class 15 25 35

Maximum Rating Phase-to-Phase 15 25 35

Maximum Rating Phase-to-Ground 8.3 15.2 21.1

ac 60 Hz 1 Minute Withstand 34 40 50

BIL and Full Wave Crest 95 125 150

CAUTION: Sectionalizing Switch should

be installed only by personnel familiar

with good safety practice and the handling of

high-voltage electrical equipment.

Figure 1.

Line illustration of Sectionalizing Switch.

Description 15 kV 25 kV 35 kV

Continuous 600 300 200

Momentary, 10 Cyc. Symmetrical 10,000 10,000 10,000

Two Second, Symmetrical 10,000 10,000 10,000

3-Shot Make and Latch, Symmetrical 10,000 10,000 6,000

Loadbreak/Loadmake

20 operations 600 300 200

30 operations 300 150 100

10 operations 100 50 25

No. Mechanical Switching Operations Over Over Over

1000 1000 1000

These instructions do not claim to cover all details or variations in the equipment, procedure, or process described, nor to provide

directions for meeting every contingency during installation, operation, or maintenance. When additional information is desired to

satisfy a problem not covered sufficiently for the user’s purpose, please contact your Cooper Power Systems sales engineer.

TANK WALL

SWITCH

INSTALLATION

■

Sectionalizing switches are sidewall or cover-mounted

in a 1.325" diameter hole with the internal electrical

switch components completely immersed under

transformer oil or equivalent. Refer to Figure 2 for

dimensional information.

■

All parts should be inspected for damage before

using. If there is evidence of physical damage, the

unit should not be installed unless approved by your

Cooper Power Systems representative.

Step 1.

MOUNT SWITCH

■

Switch should be mounted to four (4) couplings on

inside of tank (refer to Figure 3 for coupling pattern)

before tightening locking nut to sealing gland. Failure

to do this may increase operating torque of switch or

cause damage.

Sectionalizing Switch Installation Instructions

4.376"

(111.2 mm)

8.35"

(212 mm)

2.75"

(69.9 mm)

8.346"

(212 mm)

5.400"

(137.2 mm)

TYP.

.470"

(11.9 mm)

DIA. HOLE

ALL LINE

CONNECTIONS

5.153"

(130.9 mm)

.438"

(11.1 mm)

DIA. MTG. HOLES

DCB

.78

(20 mm)

SEE NOTE 2 AND 3

TANK SEALING

GLAND FURNISHED

WITH SWITCH

Figure 2.

Line illustration with dimensions of sectionalizing switch.

Note: 1. Dimensions given in Figure 2 and Table 3 are for reference only.

2. Handle can be used on 14 GA. (.075/1.9 mm) to .25 (6.4 mm) thick frontplate. 14 gage shown.

3. Optional padlock handle is available, but not shown.

4. See catalog section 800-64 for switch types, number of phases, and catalog numbers.

TABLE 3

Dimensional Information for Figure 2

NO. OF

A DE

DECKS/ SIDEWALL MOUNT COVER MOUNT B C SIDEWALL MOUNT COVER MOUNT SIDEWALL COVER

PHASES

15 & 25 kV 35 kV 15 & 25 kV 35 kV 15 & 25 kV 35 kV 15 & 25 kV 35 kV

MOUNT MOUNT

1 7.75 8.75 13.0 14.00 — — 7.0 8.0 12.25 13.25 .745 6.0

(196.9 mm) (222.3 mm) (330.2 mm) (355.6 mm) (177.8 mm) (203.2 mm) (311.2 mm) (336.6 mm) (19.05 mm) (152.4 mm)

2 11.813 12.813 17.063 18.063 4.063 — 7.0 8.0 12.25 13.25 .75 6.0

(300.0 mm) (325.5 mm) (433.4 mm) (458.8 mm) (103.2 mm) (177.8 mm) (203.2 mm) (311.2 mm) (336.6 mm) (19.05 mm) (152.4 mm)

3 15.875 16.875 21.125 22.125 4.063 4.063 7.0 8.0 12.25 13.25 .75 6.0

(403.2 mm) (428.6 mm) (536.6 mm) (561.9 mm) (103.2 mm) (103.2 mm) (177.8 mm) (203.2 mm) (311.2 mm) (336.6 mm) (19.05 mm) (152.4 mm)

■

Sealing is accomplished with O-rings on operating

shaft and gasketed sealing gland secured on outside

of tank with locking nut.

■

Switch should be located to ensure recommended

clearances in Table 4 are maintained.

TABLE 4

Recommended Clearances

Mechanical

External handle clear of obstruction. Clearances also required

for hook-stick operation.

Dielectric (Under Oil)

Minimum of 4 inches on all sides of the switch.

■

Torque requirements as defined in Table 5 shall be

maintained.

TABLE 5

Recommended Torque

Step 2

LEAD TRAINING

■

Cantilever Strength of Assembly:

Sufficient to support one 500MCM Cu lead per

contact.

■

Switch contacts are pre-gauged at factory and will

have some rotation in same plane as switch blade.

Leads attached to switch contacts must not restrict

this rotation. The nuts holding the contacts should not

be tightened. Leads can be bolted to rear of contact

and care should be taken to minimize mechanical

stress on the contacts. Standard dielectric dimensions

for lead separation should be followed. Tight lead

training may cause excess cantilever force and

difficulty in switch operation.

Step 3.

INDEX PLATE

■

An externally installed optional limit plate prevents

rotation to positions other than the one desired. Refer

to Figure 4.

Mounting Bolts:

" diameter mounting bolts to be

torqued 60-100 in-lbs

To Seal (Gland): 60-120 in-lbs

2.750"

(70 mm)

4.375"

(111 mm)

1.5"

(38.1 mm)

TYP.

1.325"

(34 mm)

DIA. HOLE

.140"

(4 mm)

RAD.

ON INSIDE WALL:

COUPLING WITH 3/8-16

TAPPED THREAD

.75 LG

(19.1 mm)

ON OUTSIDE WALL:

.312" Dia.

625" Long

(7.9 mm) (15.9 mm)

WELD PIN

1.5"

(38.1 mm)

TYP.

.662"

(17 mm)

1.375"

(35 mm)

TYP.

2.187"

(56 mm)

TYP.

Figure 3.

Mounting hole and coupling placement.

NOTES:

1. Weld pins, couplings and position designations not included with switch. Pre-welded coupling pin plates available-cat. no. 2037424C02M.

2. All couplings and pins to be welded flat within an angularity tolerance of ± 30’.

3. Alternate method: weld 3/8 – 16 x 1.25 L studs in place of couplings and use .75 long spacers over studs.

OPEN

LINE A

ONLY

LINES

A & B

LINE B

ONLY

Figure 4.

View of tank front with optional limit plate positioned over pin.

NOTE: With limit plate positioned securely as shown, switch can be operated

only counterclockwise to “line A only” position and no further.

WELD PINS (4)

(FOR

LOCATING

LIMIT PLATE)

NOTE: Typical position configuration shown for some “V” blade switches.

See catalog section 800-64 for other switch layouts and schematics.

Position labeling provided by equipment manufacturer.

Step 4.

MARKINGS

■

Appropriate markings and/or stops should be

included on tank wall to meet customer specifications.

OPERATING INSTRUCTIONS

■

The switch can be operated 360° in either clockwise

or counter-clockwise direction.

■

When switching (with hotstick) from one position to the

next, (for example: position “A” to position “B”), the

limit plate should be located on the pin location just

beyond the position being turned to.

■

Turn hotstick until switch has fully indexed into the

next position. If for any reason, the switching

operation cannot be completed with a single motion, it

is acceptable to relax, regrip the hotstick and

complete the operation by moving the switch handle

in the same direction as the original effort. NOTE: Do

not reverse the direction of the switching operation

before completing the rotation.

■

If the handle stops (jams) in a position between the

designated (marked) positions, stop switching

operation and consult the factory prior to reattempting

operation of the switch.

RTE

is a registered trademark of Cooper Power Systems, Inc.

P.O. Box 1640

Waukesha, WI 53187

#5000050062 Rev. 02

Sectionalizing Switch Installation Instructions

CAUTION: Enclosed decal (Cooper P/N

1109699A) should be displayed at or near

operating handle of switch as a warning to

service personnel. Failure to do so will

constitute a waiver of all warranty and indemnity

obligations which may be attributable to Cooper

Power Systems.

Eaton S800-64-1, Sectionalizing switch (5000050062) Installation guide

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