Product overview
Widely used in city network reconstruction, residential area, high-rise buildings, industrial and mining, hotels, shopping malls, airports, docks, highway, railway, oilfield and temporary electricity facilities and other places of households inside and outside.
Function and characteristics of the
1, high voltage switch equipment, transformers, low voltage switch equipment of the trinity, complete sets of strong sex;
2, high and low voltage protection, safe and reliable operation, simple maintenance;
3, covers an area of less, saving investment, short production cycle, mobile convenience;
4, connection scheme is flexible and varied:
5, unique structure, unique cellular structure of the double (composite board) shell and firm, heat insulation and cooling ventilation, beautiful, high protection grade, shell materials have stainless steel, aluminum, gold, titanium alloy cold rolled
Plate, color steel plate optional;
6, a variety of type: general type, villa type, compact and so on the many kinds of style;
7, high pressure in ring network cabinet assembly automation network terminal (FTu) to achieve short circuit and reliable testing of single-phase earth fault have "four control" function, is advantageous for the distribution network automation to upgrade.
Models and meaning
Conditions of use
1, the altitude does not exceed 1000 m: '
2, the environment temperature: - 25 ℃ ~ + 40 ℃;
3, relative humidity: the average daily I straight not gets 95%, on average no greater than 90%;
4, the installation place, no fire and explosion danger, conductive dust yi, chemical corrosive gas and the site of violent vibration, if beyond the above conditions, inch, the user can negotiate with our company.
High side
Pre-installed type substation high-voltage generally adopts load combination switch a fuse protection, fuse mutually fusing, three-phase linkage tripping.Load switch has gas type, pneumatic type, really
Empty, sulfur hexafluoride, such as type of optional, can match the electric operating mechanism, automatic upgrade;Fuse for high-voltage current-limiting fuse with impactor.Reliable, open circuit large capacity, main technology
See table operation parameters.For 800 kv transformer, choose CSTvl stomach, CSTv2 vacuum circuit breaker protection, etc.
Low voltage side
Low voltage side of main switch adopted universal type or intelligent circuit breaker, the selective protection;Outlet switch selects the new plastic shell type switch is small in size, short arcing, up to 30 back;Intelligent automatic
Track the reactive power compensation device, a blanket to xi non-contact two cutting way for users to choose.
transformer
Pre-installed type substation choose low loss, oil-immersed, fully sealed the integrated transformer, s10, s11 is either good or bad ", also can choose resin insulation or NOMEX paper insulation environmental protection dry type transformer, at the bottom
Spent three, three specificity, transformer can easily in and out.
Execution standard
This product meets the following criteria:
GB/T1 7467-7467 "high pressure" pressure preinstalled type substation j
DL/T537-93 order 6 to 35 kv box substation technical conditions"
From the pressure of fusing technology parameters
A scheme
Substation high-voltage side once see attached 1, low side plan see attached 2 at a time.
A typical project example
Figure see attached 3 typical project example.
The arrangement plan
Substation layout see attached 4, the user can choose according to need.
Installation, use and maintenance
Pre-installed type transformer substation in the installation and acceptance, transfer test, commissioning, operation and maintenance should abide by all provisions of power sector are calling for the outside, also pay attention to the following items:
When receiving A, users should according to the relevant provisions of the check, for installation of the product immediately, should according to the provisions of the conditions of normal use of stored in the appropriate place.
B, the product should use special hook at the bottom of the lift, as shown in figure 3.
C, product level in prepared on the basis of, and then the product base and the gaps between the foundation with cement mortar, so as to avoid the rain into the cable chamber.Through the high and low pressure chamber bottom
Block access to high and low voltage cable.
D, the products should be in place after the reliable grounding;Trough negative steel plant base on the two main earthing terminal, transformer neutral point and the shell, lightning arrester of pile head, etc. Shall be respectively by installation department
Grounding.All ground should be Shared link ground device, the grounding resistance should be the usual I less than 4 ohm, lead to products from the ground net.through grounding wire should be not less than two.
E, the product after installation or maintenance Should be done before commissioning inspection and testing the following items:
(1) within the substation is clean;
(2) operating mechanism is flexible;
(3) the main electrical on-off is flexible and reliable;
(4) electrical auxiliary contact on-off is reliable and accurate;
(5) meter and relay action is accurate;
(6) the instrument and the change of transformer ratio and polarity is correct;
(7) all the electrical installation of nuts are tight, installation is firm and reliable;
(8) bus connections are in good condition, its support insulator, is whether the installation and reliable;
(9) electric setting value is in accordance with the requirements of fuse molten core specification is correct;
(10) of main circuit and auxiliary circuit contact whether conform to the requirements of the electric schematic diagram.
F, maintenance
(1) product all components according to their respective technical requirements in the maintenance;
(2) if the chosen for oil-immersed transformer shall be carried out in accordance with the provisions, at least once every year check sample analysis;
(3) high side switch equipment in operation, and 20 times of loading or 20.O time points after the closing operation without load, check the contact and the degree of abnormal loss of arc extinguishing device should be checked in a timely manner
Repair or replacement;
(4) low voltage switch equipment after the trip, should check the paper analyzes the reasons of trip, after waiting for troubleshooting, will again put into operation;
(5) the arrester should be performed before the thunderstorm season annually preventive test;
With packing list, quality certificate, installation manual, electrical wiring diagram and the product adopted by the main components of equipment specifications, operating tools and according to the agreement to provide a key
Spare parts.
