CN105895275A - Multifunctional protective strain insulator string - Google Patents

Abstract

Provided is a multifunctional protective strain insulator string used for a power transmission and distribution line. The multifunctional protective strain insulator string is composed of a single lug ring 1, a housing 2, a spring ring 3, a supporting column 4, a double-ear support 5, a positioning ring 6, an insulator 7, a short arc striking rod 8, a long arc striking rod 9, and a grounding ring 10; the spring ring 3 is installed at the center of the housing 2; one end of the housing 2 is equipped with a positioning lug 2.1; the supporting column 4 is inserted into the spring ring 3 and is connected with the single lug ring 1 in a fastened manner; the double-ear support 5 is connected with the housing 2 so that the double-ear support 5 and the housing 2 form one body; the insulator 7 is suspended on the single lug ring 1; the short arc striking rod 8 and the long arc striking rod 9 are in threaded connection with two sides of the insulator 7 and face upwards; the grounding ring 10 is in threaded connection with the right side of the insulator 7 and faces downwards; the spring ring 3 is provided with an opening; the inner ring corner of one end of the opening is a circular corner or oblique corner; the supporting column 4 is provided with a large segment and a small segment, and the junction of the large segment and the small segment has a specific angle so as to form a circular inclined surface and a circular corner; pricking pins 7.1 are arranged among the sheds of the insulator 7; and the head of each pricking pin is in a sharp-corner shape.

Description

Multifunction protection type strain insulator string

Technical field:

The present invention relates to electrical power distribution line security and run field, strain insulator electric pole can be taken precautions against and fractureed by violent typhoon, Defecation initiation is short-circuit trips because flying bird stops to take precautions against strain insulator, can take precautions against lightning-caused breaking, be a kind of electricity Power transmission line comparatively ideal multifunction protection type strain insulator string.

Background technology:

The mankind, during development, propose requirement higher, that update to the energy.Meanwhile, tellurian Greenhouse gas emission also will be more lasting growth, the development for social environment brings bigger pressure.Mesh Before, countries in the world propose environmental protection, efficient, safe, energy-conservation theory in succession.In this theory, want Really realize the efficient, safe and environment-friendly and energy-conservation of energy supply, it is necessary to the appearance of intelligent grid.Strengthen Typhoon, thunderstorm encroach on suffer a loss to power system inestimable；According to relevant report, this year is the most superpower Typhoon invades, and causes the many electric poles of electrical power distribution circuit to fracture, and therefore power failure repairing is suffered heavy losses, if changed Dress high-strength electric pole, and cost is high；The procreation of birds is incremented by the most therewith；Report according to many ground power department, Electrical power distribution circuit is voided excreta by birds, and even nesting etc. thus causing insulation flashover breaking is that circuit falls The one of the main reasons of lock；With global warming, lightning electricity ring meteorology is growing on and on, and thunderbolt causes electric power The loss of system is obvious to all, and the lightning-caused breaking of insulated conductor occurs again and again；All this kind causes the repairing that has a power failure to damage Lose heaviness.Our company follows the energy-saving and emission-reduction policy that country advocates, it then follows national grid, Southern Power Grid Company The intelligentized developing direction of Regulation, specialty researches and develops energy-saving, the multifunction protection strain insulator of low cost Insulator chain, the reliability service for intelligent grid escorts

Summary of the invention:

This device is a kind of comparatively ideal multi-functional strain insulator string of electrical power distribution circuit.

The technical scheme is that

The multifunction protection type strain insulator string used on a kind of electrical power distribution circuit, this device includes monaural Link, housing, split circlip, dagger, ears support, centring ring, strain insulator, starting rod and Ground loop etc.；The turn of the built-in opening of housing, and leave corresponding space, the path section of dagger is inserted Entering turn, be big footpath section on the left of it, big path junction is set to oblique angle, forms oblique anchor ring and a fillet, Monaural ring and dagger are spirally connected fastening, also can be mounted (see Fig. 2) by pivot pin, and two ears supports are spirally connected the most respectively It is fastened on housing outer ring surface, it is possible to be set to one (see Fig. 2), can mount with cross-arm, monaural ring energy and strain insulator Insulator chain mounts；Protection electric pole principle: when relatively violent typhoon or violent typhoon invade, and wind-force acts on wire When reaching certain force value, the oblique anchor ring of dagger 4 acts on the internal ring fillet of turn, forces turn Expanding outwardly, final dagger skids off turn and housing, and together comes off with wire, and so far, wind acts on Power on electric pole greatly reduces, and makes electric pole exempt from and fractures；Pricker 7.1, N it is provided with between the full skirt of strain insulator Individual full skirt just has N-1 pricker, and pricker is arranged on the top of insulator, and pricker head is tip-angled shape, can prevent, Body birds stop defecation；Can effectively solve the insulation flashover breaking thereby resulted in；Two sides of insulator arrange striking Rod, sets optimal discharge gap, when thunderbolt occurs, makes the power frequency arc of afterflow cause at discharging gap and burn, energy Protection wire and insulator exempt from scaling loss；The lower right-hand side of insulator is provided with ground loop, it is simple to during maintenance construction Electrical verification ground connection；The right side gold utensil of insulator has a various ways, biaurite, have monaural, have fourth head, To adapt to different needs.

Accompanying drawing illustrates:

Fig. 1 is that multi-functional strain insulator protects insulator chain assembling figure.

Fig. 2 is another kind of elastic force guard bar device figure.

Embodiment

This multifunction protection type strain insulator string, in electrical power distribution circuit, the ears link in left side and ferrum Cross-arm mounts, and right side gold utensil can mount with wedge clamp；It include monaural link, housing, split circlip, Dagger, ears support, centring ring, strain insulator, starting rod and ground loop etc.；Built-in one of housing is opened Mouthful turn, and give and stay corresponding space, the path section of dagger inserts turn, is big footpath section on the left of it, Big path junction is set to oblique angle, forms an oblique anchor ring, monaural ring and dagger and is spirally connected fastening, also can be by pivot pin Mounting (see Fig. 2), and positioned by two lugs 2.1 on housing, ears support is spirally connected the most respectively and is fastened on shell On external anchor ring, it is possible to be set to one (see Fig. 2)；Violent typhoon invades, and wind-force acts on and reaches certain on wire Force value time, the oblique anchor ring of dagger 4 acts on the internal ring fillet of turn, forces turn to expand outwardly, Final dagger skids off turn and housing, and together comes off with wire and strain insulator string, and so far, wind is made The power being used on electric pole greatly reduces, and makes electric pole exempt from and fractures.

Being provided with pricker 7.1 between the full skirt of strain insulator, pricker is arranged on the top of insulator, pricker head For tip-angled shape, can prevent, body birds stop defecation；Can effectively solve the insulation flashover breaking thereby resulted in.

Two sides of insulator arrange starting rod, set optimal discharge gap, when thunderbolt occurs, make the power frequency of afterflow Electric arc causes and burns at discharging gap, and wire and insulator can be protected to exempt from scaling loss.

The lower right-hand side of insulator is provided with ground loop, it is simple to electrical verification ground connection during maintenance construction.

When carrying out rushing to repair again hanging wire, this elastic force guard bar device remains to use, but, and should be ears before using Support is back-outed, and monaural ring and dagger are turned on, and then, dagger is inserted in turn, loads centring ring, Monaural ring and dagger are spirally connected fastening, are loaded on ears support and mount with cross-arm, monaural ring and strain insulator string Mounting, after stringing, wire inserts wedge clamp.

The right side gold utensil of insulator has various ways, to adapt to the needs of different wire clamp.

Claims (5)

1. a multifunction protection type strain insulator string for power distribution circuit, including monaural ring (1), housing (2), turn (3), dagger (4), ears support (5), centring ring (6), insulator (7), Short starting rod (8), long starting rod (9) and ground loop (10) etc. are constituted, it is characterised in that: turn (3) Being contained in the centre of housing (2), dagger (4) is inserted in turn (3), and with monaural ring (1) even Connecing fastening, ears support (5) is connected on housing (2) form one, and insulator (7) is articulated in On monaural ring (1), length starting rod (8) (9) is screwed onto two sides of insulator (7), and towards Top, ground loop (10) is screwed onto the right side of insulator (7), and downward.

Multifunction protection type strain insulator string the most according to claim 1, it is characterised in that: turn sets Having opening at, its internal ring angle, one end is fillet or oblique angle.

Multifunction protection type strain insulator string the most according to claim 1, it is characterised in that: dagger is set to Big segment, the junction of big segment is provided with special angle, forms an annular slope and fillet.

Multifunction protection type strain insulator string the most according to claim 1, it is characterised in that: two ears Support (5) connects outer the placing being fastened on housing (2) respectively, forms an ears link.

Multifunction protection type strain insulator string the most according to claim 1, it is characterised in that: insulator (7) Full skirt between be provided with pricker, the head of every piece of pricker is tip-angled shape.