سينڊ سي مارڪ سرڪٽ سوئچر سوئچنگ ۽ تحفظ جي هدايت نامو

The seller’s standard conditions of sale set forth in Price Sheet 150 apply, except as modified under the “Special Warranty Provisions” on page 3 and “Warranty Qualifi-cations” sections on page 4.

Special To This Product

شموليت
The Mark V Circuit-Switcher uses an in-series circuit-breaking interrupter and a circuit-making and isolating disconnect, making it especially suited for switching and protection of transformers, lines, cables, capacitor banks, and line-connected or tertiary-connected shunt reactors. The Mark V Circuit-Switcher is suitable for frequent operation over a long period of time with minimal mainte-nance. It is capable of closing, carrying, and interrupting fault currents as well as load currents, and it uses inter-rupters economically tailored for specific applications by using the precise number of interrupting gaps required. These interrupters are unaffected if subjected to sustained system voltage for extended periods resulting from being left open with the disconnect blades closed for any reason. The Mark V Circuit-Switcher is available in three styles—vertical-break, center-break, and integer.

طاقت جو عمل
High-speed, high-torque power operation of S&C Mark V Circuit-Switchers is required to provide two-time duty-cycle fault-closing ratings of 30,000 amperes, RMS, three-phase symmetrical, 76,500 amperes peak for the vertical-break style and integer-style circuit-switchers; and two-time duty-cycle fault-closing ratings of 40,000 amperes, RMS, three-phase symmetrical, 102,000 amperes peak for the center-break style circuit-switchers. See the “Basis of Fault-Closing Ratings” section. Power operation of Mark V Circuit-Switchers also provides opening and closing without hesitation under ¾-inch (19-mm) ice formation for the verti- cal-break and integer styles, 1½-inch (38-mm) ice formation for the center-break style, close interphase simultaneity, long life of fault-closing contacts under normal operating duties, and avoidance of excessive switching transients caused by prolonged or unstable prestrike arcing. Mark V Circuit-Switchers are provided with high-speed, high-torque power operation by adding Type CS-1A Switch Operators. Refer to S&C Specifica-tion Bulletin 719-31 for details on Type CS-1A Switch Operators.

For high-speed tripping of power-operated Mark V Circuit-Switchers, add an optional S&C Shunt-Trip Device. See Table 7 on page 11. This shunt-trip device provides high-speed (8-cycle) circuit interruption. The Type CS-1A Switch Operator is required if the shunt-trip device is specified.

BASIS OF FAULT-CLOSING RATINGS
Two-time duty-cycle fault-closing ratings, as set forth above and on succeeding pages, apply to Mark V Circuit-Switchers when powered by the Type CS-1A Switch Operator and are based on performance as follows:

1. The circuit-switcher is capable of two fault-closing operations consisting of closing against and carrying for three seconds● its rated fault-closing current, after which it can carry and interrupt its rated continuous current and is capable of power opera-tion—either opening or closing.

2. After each occasion consisting of either one or two fault-closing operations at its rated fault-closing current, the circuit-switcher must be inspected and any necessary repair or replacement of the fault-closing contacts made to restore the device to its original condition.

دستي آپريشن

Integer-style, vertical-break style, and center-break style Mark V Circuit-Switchers (with extruded-aluminum weldment bases)—are all available for manual opera-tion. Manually operated circuit-switchers, however, do not provide the performance features obtainable with power-operated circuit-switchers described in the “Power Operation” section on page 2 such as fault-closing ratings and opening and closing under ice formation, nor can they be furnished with the shunt-trip device. Also, for manually operated Mark V Circuit-Switchers, the degree of simultaneity of opening and closing of the three pole-units depends on the proper installation and adjustment of the operating mechanism—as well as on the speed of cranking at the operating handle—and must be consid-ered in establishing ground-relay settings. If manual operation is desired, specify the S&C Manual Geared Operating Handle listed in Table 9 on page 15.

MOUNTING OF CIRCUIT-SWITCHERS

The high operating speed makes possible many of the Mark-V Circuit-Switcher’s superior performance features when power-operated (described on page 1) and brings about the high dynamic forces for which S&C Mounting Pedestals were specifically designed—and are thus highly recommended. (See Table 13 on page 17.) Alternately, circuit-switchers can be installed on the user’s steel pedestals or supporting structures, which must meet specific static and dynamic deflection limits shown on the data sheets listed in Table 1.

Table 1. Static and Dynamic Deflection Limit Resources

Circuit-Switcher Style and Rating

Static and Dynamic Loading Specifications

Vertical-break, 34 .5 through 161 kV

Data Sheet 711-300

Center-break, 230 kV:
extruded-aluminum weldment base

Data Sheet 711-301

Center-break, 345 kV:
aluminum-sheathed steel weldment base

Data Sheet 711-302

Integer, 34 .5 through 69 kV

Data Sheet 711-303

اخراج
Mark V Circuit-Switchers do not include connectors. Various connectors are available, as listed in Table 8 on page 14. Specify the quantity and catalog number of the connectors desired.
Circuit-switchers do not include manual operating handles.
Mounting pedestals and anchor bolts, if furnished, are not included and must be ordered separately. For mounting pedestals and anchor bolts, see Table 13 on page 17.
Circuit-switchers do not include the services of an S&C field service specialist for evaluating the condition of the circuit-switcher.

وضاحت جي انحراف
When Mark V Circuit-Switchers are to be provided with special connectors (including all expansion, compres-sion, and multi-conductor types), refer to the nearest S&C Sales Office.
Single-, two-, and four-pole vertical-break style and center-break style circuit-switchers are available. Refer to the nearest S&C Sales Office.

USUAL OPERATING CONDITIONS

Mark V Circuit-Switchers will perform as intended at temperatures within the range of -40°C to + 40°C (-40°F to
+ 104°F), at altitudes of up to 3300 feet (1000 meters),●, and at wind loadings of up to 100 miles per hour (160 kilometers per hour).

Mark V Circuit-Switchers, when installed with the recommended S&C Mounting Pedestals and anchor bolts (see Table 13 on page 17), are capable of withstanding seismic loading of 0.2-g ground acceleration in any direction, as well as performing as intended during such loading and afterward.
For applications at temperatures not within the spec-ified range, at higher altitudes, at higher wind loadings, or where higher seismic withstand capabilities are required, refer to the nearest S&C Sales Office.

SPECIAL WARRANTY PROVISIONS
The standard warranty contained in the seller’s standard conditions of sale, as set forth in Price Sheet 150, applies to Mark V Circuit-Switchers and accessories and associ-ated switch operators, except the first paragraph of the said warranty is replaced by the following:

(1) General: The seller warrants to the purchaser for a period of five years from the date of shipment that the equipment delivered will be of the kind and quality specified in the contract description and will be free of defects of workmanship and material. Should any failure to conform to this warranty appear under proper and normal use within five years after the date of shipment, the seller agrees, upon prompt notification thereof and confirma-tion that the equipment has been stored, installed, operated, inspected, and maintained in accordance with recommendations of the seller and standard industry practice, to correct the nonconformity either by repairing any damaged or defective parts of the equipment or (at the seller’s option) by shipment of necessary replacement parts.
Replacement parts provided by the seller under the warranty for the original equipment will be covered by the original-equipment warranty for its duration. Replacement parts purchased separately will be covered by the warranty contained in the seller’s standard conditions of sale, as set forth in Price Sheet 150.

Mark V Circuit-Switchers can be installed at altitudes greater than 3300 feet (1000 meters), but deratings to the BIL voltage will apply. Refer to the nearest S&C Sales Office for details.

وارنٽي قابليت
سرڪٽ-سوئچرز جي وارنٽي ھيٺين مان ھر ھڪ تي منحصر آھي:

Observance of the static and dynamic deflection limits shown on S&C Data Sheet 711-300, 711-301, 711- 302, or 711-303, as applicable

صرف S&C سوئچ آپريٽرز پاران سرڪٽ-سوئچرز جو پاور آپريشن
Installation and adjustment of circuit-switchers in accordance with S&C’s applicable erection drawings and instruction sheets

Conformance with the inspection recommendations defined in S&C Instruction Sheet 711-590

Complete these steps to identify the base catalog number, the appropriate options, and the product accessories to complete this order:

STEP 1. Obtain the catalog number of the desired circuit-switcher from Table 3 and Table 4 on page 9, and Table 5 and Table 6 on page 10.

STEP 2. Obtain the suffix letters of optional features, if desired, from Table 7 on page 11 through page 12. Add the indicated suffix letter(s) to the catalog number of the circuit-switcher selected in Step 1.

STEP 3. Obtain the catalog number of the mounting pedestal(s), if desired, from Table 13 on
page 17. From this same table, obtain the catalog number of the required anchor bolts, taking care to note the quantity of anchor bolts required for the circuit-switcher selected.

STEP 4. Select a manual handle or switch operator.

If manual operation is desired: Order an S&C Manual Geared Operating Handle. Obtain the catalog number for the manual handle from Table 9 on page 15.
If accessories for the manual geared operating handle are desired: Obtain the suffix letters of the desired accessories from Table 10. Add the indicated suffix letter(s) to the catalog number of the operating handle.

If power operation is desired, order a Type CS-1A Switch Operator. Refer to Specification Bulletin 719-31 for catalog and ordering information.

STEP 5. If connectors are desired, obtain the catalog number of the desired connector from Table 8 on page 14. Order six connectors for each circuit-switcher.

Example: The final catalog number for a complete order that includes a 138-kV, 1200-A continuous circuit-switcher, two interrupting gaps, with pre-assembly and a 125-Vdc shunt-trip device would be:

Note: All Mark V Circuit-Switcher orders must be designed by S&C’s Custom Engineering team. Spare or replacement interrupters for Mark V Circuit-Switchers are ordered using the same method outlined above.

اپليڪيشن جي درجه بندي

Table 2. Application Classifications

① X0/X1 from 0 to + 3.0 and R0 /X1 from 0 to + 1.0.
② Includes both single and multiple (back-to-back) banks.
③ S&C BankGuard Plus® Controls, described and listed in S&C Spec-ification Bulletin 1011-31 have the sensitivity to detect the first faulted unit in a capacitor bank or to promptly respond to a shorted-turns fault in a shunt reactor—but with the discrimination to disregard system and bank unbalances as well as spurious transients. For installations of S&C Automatic Control Devices on, or in the same substation with, 345-kV or 500-kV circuits, contact the nearest S&C Sales Office.

④ The interrupting ratings shown are applicable for the following reclosing duty cycle: O + 0 seconds (no intentional delay) + CO + 0 seconds + CO.
⑤ For integer-style circuit-switchers (except catalog numbers 157886 and 157986) the maximum 60-Hertz recovery voltage is 75 kV, RMS.
⑥ Three-phase transformers or three-phase banks of single-phase transformers.

TABLE 2 FOOTNOTES CONTINUED
⑦ Total connected length of all overhead lines (in all directions), including any number of feeders connected to source-side substations, as indicated in table below. Connected cable may reduce or eliminate the line-length requirement. Contact the nearest S&C Sales Office.

⑧ And all single-phase transformers connected phase-to-ground on the primary (circuit-switcher) side.
⑨ For applications involving wye-connected reactor banks with neutral grounded through a fourth reactor, contact the nearest S&C Sales Office.

● Depending upon continuous rating of the circuit-switcher.
■ Circuit-switcher will drop loads through 1200, 1600, or 2000 amperes, depending upon its continuous rating, and will switch magnetizing currents associated with such loads.
▲ Tripping of a circuit-switcher must be coordinated with a series power fuse or with source-side protective equipment for short-circuit currents in excess of this value.
◆ 8000 amperes for all Mark V Circuit-Switcher models rated 34.5 kV through 69 kV, also 2-gap models rated 115 kV and 3-gap models rated 138 kV and 161 kV; 7000 amperes for all other Mark V Circuit-Switchers for which symbol “J” applies.
▼ 3000 amperes for 115-kV single-gap Mark V Circuit-Switchers.
□ The Mark V Circuit-Switcher is suitable for transformer-primary applications where the inherent secondary-fault current—the secondary-side fault current as reflected on the primary side of the transformer, assuming an infinite (zero-impedance) source—does not exceed 4000 amperes (3000 amperes in the case of 115-kV single-gap Mark V
Circuit-Switchers) for a fault external to the transformer. The inherent secondary-fault current may be calculated as follows:

جتي I = موروثي ثانوي غلطي موجوده، amperes
P =Transformer self-cooled three-phase rating, kVA
E = پرائمري-سائيڊ سسٽم فيز کان فيز voltage، kV
%Z = Percent transformer primary-to-secondary impedance, referred to transformer self-cooled three-phase kVA rating

For applications where the inherent secondary-fault current exceeds the above limits but where the maximum expected fault current, based on transformer impedance plus source impedance (anticipating future system growth), is within these limits, contact the nearest S&C Sales Office.

△ Symbol “E” for solidly grounded systems; symbol “F” for effectively grounded systems.
◇ Maximum length of line: 300 miles.
▽ For vertical-break and integer style circuit-switcher applications where load in excess of 550 amperes is to be switched frequently, extra-performance closing contacts are recommended for increased contact life; refer to the Table 7 on page 11 through page 12.

◐ Symbol “K” for solidly grounded capacitor banks applied on solidly grounded systems; symbol “L” for all other applications.
◧ For center-break style circuit-switcher reactor switching applications above 500 amperes, contact the nearest S&C Sales Office.
◭ For applications up to 4000 amperes, contact the nearest S&C Sales Office.
◀ Symbol “P” for solidly grounded reactors applied on solidly grounded systems, provided phase-to-phase and ungrounded three-phase faults are cleared by other devices; symbol “R” for all other applications.

Table 3. Circuit-Switchers—Three-Pole Vertical-Break Style①②③

④ For complete information refer to the “Basis of Fault-Closing Ratings” section on page 2.
⑤ If the circuit-switcher is to be installed on a structure other than S&C Mounting Pedestals (see Table 13 on page 17), detailed drawings of the user-furnished mounting structure must be supplied at the time of order. Please contact your nearest S&C Sales Office for details

Table 4. Circuit-Switchers—Three-Pole Center-Break Style, with Extruded-Aluminum Weldment Bases①②③④⑤

① Circuit-switchers do not include connectors. Refer to Table 8 on page 14. Circuit-switchers are furnished with gray (Munsell Number 5 BG 7.0/014) station post insulators.
② Circuit-switchers do not include manual operating handles. (See Table 9 on page 15.)
③ Shunt-trip device is available with all power-operated center-break style Mark V Circuit-Switchers.
④ For center-break style circuit-switchers, blade opening direction, as viewed from interrupter end, is to the left.
⑤ Flexible-conductor connections are recommended at both ends of all center-break style circuit-switchers with extruded-aluminum weldment bases, except when the bypass accessory (catalog number
suffix “-B2”) is furnished. In this instance, a rigid bus connection is necessary at the rotating-insulator end. To reduce circuit-switcher deflection during opening and closing operations—which can loosen the bus connection—double-acting shock absorbers (catalog number suffix “-H”) are available and are recommended.
⑥ For complete information refer to the “Basis of Fault-Closing Ratings” section on page 2.
⑦ If the circuit-switcher is to be installed on a structure other than S&C Mounting Pedestals (see Table 13 on page 17), detailed drawings of the user-furnished mounting structure must be supplied at the time of order. Please contact your nearest S&C Sales Office for details.

ٽيبل آرڊر ڪرڻ

Table 5. Circuit-Switchers—Three-Pole Center-Break Style,with Aluminum-Sheathed
Steel Weldment Bases①②③④

① Circuit-switchers do not include connectors. Refer to Table 8 on page 14. Circuit-switchers are furnished with gray (Munsell Number 5 BG 7.0/014) station post insulators.
② These circuit-switchers cannot be furnished with manual operating handles.
③ Shunt-trip device is available with all power-operated center-break style Mark V Circuit-Switchers.
④ For center-break style circuit-switchers, blade opening direction, as viewed from interrupter end, is to the left.
⑤ For complete information refer to the “Basis of Fault-Closing Ratings” section on page 2.

⑥ If the circuit-switcher is to be installed on a structure other than S&C Mounting Pedestals (see Table 13 on page 17), detailed drawings of the user-furnished mounting structure must be supplied at the time of order. Please contact your nearest S&C Sales Office for details.
● Not applicable for fault-interrupting duty. Also suitable for three-phase transformers and three-phase banks of single-phase transformers connected solidly grounded-wye on the primary (circuit-switcher) side, solidly grounded-wye on the secondary side, with a delta-connected tertiary.

Table 6. Circuit-Switchers—Three-Pole Integer Style①②

S&C Mounting Pedestals (see Table 13 on page 17), detailed drawings of the user-furnished mounting structure must be supplied at the time of the order. Please contact your nearest S&C Sales Office for details.
⑤ As viewed from interrupter end.

Table 7. Optional Features—For Mark V Circuit-Switchers

Table 9. S&C Manual Geared Operating Handle—For Mark V Circuit-Switchers

Table 10. Accessories—For Manual Geared Operating Handle

Table 11. Spare or Replacement Interrupters—For Mark V Circuit-Switchers

ٽيبل 12. حصا

Table 13. Mounting Pedestals and Anchor Bolts—For Mark V Circuit-Switchers

① Mounting pedestals of less than 12-foot (366-cm) column height may be furnished in intermediate heights—in 3-inch (76-mm) increments, as shown in the table below. Add the appropriate suffix to the mounting pedestal set catalog number.

NOTE: Maximum standard column height is 12 feet (366 cm).
② Each anchor bolt is of galvanized steel and is furnished with two hex nuts and two flat washers to facilitate leveling the mounting pedestals.

③ Nominal sizes of anchor bolts are as follows, in inches:
S-81365-1: 1×33
S-81365-2: 1¼×44
S-81365-3: 1½×55
④ If mounting pedestals are to be used with integer-style circuitswitchers that are equipped with the shunt-trip device, add suffix “-T” to the catalog number.
⑤ Vertical-break style circuit-switchers, one, two, or three gaps, rated 138 kV, will also fit these mounting pedestals.

Phase spacing for integer-style circuit-switchers is fixed by the dimensions of the mounting frame and is 41 inches (104 cm) for circuit-switchers rated 34.5 kV and 46 kV, and 51 inches (130 cm) for circuit-switchers rated 69 kV.

طول و عرض

Three-Pole Vertical-Break Style 34.5 kV through 161 kV

Three-Pole Center-Break Style with extruded-aluminum weldment bases 230 kV

Three-Pole Center-Break Style with aluminum-sheathed weldment bases 345 kV

Three-Pole Integer Style 34.5 kV through 69 kV

وضاحتون

Product Name: Mark V Circuit-Switchers Outdoor Transmission
جلدtagاي رينج: 34.5 kV کان 345 kV تائين

FAQ

سوال: جلد ڇا آهي؟tage range for the Mark V Circuit-Switchers?

ج: جلدtage range for the Mark V Circuit-Switchers is from 34.5 kV through 345 kV.

Q: Are connectors included with the Circuit-Switchers?

A: No, Mark V Circuit-Switchers do not include connectors.
Various connectors are available separately.

Q: What is required for high-speed tripping of power-operated Circuit-Switchers?

A: An optional S&C Shunt-Trip Device needs to be added along with the Type CS-1A Switch Operator if the shunt-trip device is specified.

دستاويز / وسيلا

SandC Mark Circuit Switcher Switching and Protection [pdf] هدايت نامو
Mark Circuit Switcher Switching and Protection, Switcher Switching and Protection, Switching and Protection, and Protection

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SandC Mark Circuit Switcher Switching and Protection

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