INFOCOM ASIA - Автоматизация "под ключ" - Turnkey automation

Solar inverter substation (SIS)

Solar inverter substation (SIS) - pre-assembled substation container type for the internal arrangement of electrical equipment - control system, inverter, transformer and medium voltage switchgear.

FUNCTION SIS:

automatic generation of electric current on the set algorithm;
performing functions of protection and locks;
synchronization with the network;
operational status monitoring the main electrical equipment and its parameters;
technology and emergency alarm in case of emergency or procedural boundaries technological parameters;
logging of the process of generation, storage and delivery protocols of technological process on screens dispatcher workstations and printing in a convenient form;
accounting of consumption and electricity generation.

COMPOSITION

The composition of the inverter substation includes capital equipment for energy conversion and additional equipment for their own use SIS.

The main equipment for the conversion of energy is inverters, transformers, switchgear of medium voltage.

Equipment for their own needs – ATS cabinet (automatically enter standby cabinet), cabinet of own needs power supply, microclimate system, smoke detection systems, interior lighting.

OPERATING CONDITIONS SIS

CIP is carried out in climatic modification U1, GOST 15150, GOST 15543.1 and is intended for use under the following conditions:

Parameter	Value
Environment temperature	up -35 °С to +45 °С
Relative humidity	100%
Altitude above sea level	no more than 1000m
Environment	explosion safety and fire safety, does not contain conductive dust, corrosive gases and vapors at concentrations of damaging materials and insulation (the atmosphere of types I and II according to GOST 15543.1 and GOST 15150)
Seismic stability construction in accordance with GOST 17516.1 according to MSK 64	up to 8 points
Fire safety degree	F1
Fire resistance degree for SNiP 21-01-97	at least III
Lightning protection category	II
Protection degree according to GOST 14254	not less than IP33
Mechanical performance group- according to GOST 17516.1	40
Requirements to fit reliability	GOST 20.39.312

DESIGN FEATURES

Structural SIS is divided into the following functional units:

container;
system of energy conversion;
their own needs.

Container is a metal shell, designed for the installation of electrical and electronic equipment, as well as protect it from environmental influences.

Energy conversion system is a complex electrical and electronic equipment for receiving and converting electrical voltage up to 1000V DC on photovoltaic power systems in the three-phase voltage 10 kV (35 kV), 50 Hz alternating current, and for transmission of electricity to the national network. SIS consists from:

inverter ABB;
step-up transformer with split windings;
passage switchgear of medium voltage.

Their own needs is an electronic and electrical equipment intended for the supply circuits their own needs SIS, as well as to control auxiliary equipment SIS.

Available SIS performance based MC - metal containers and CK - monoblock concrete containers (kiosks).

OVERALL DIMENSIONS OF THE SIS CONTAINER

Container Type	Overall Dimensions (mm)			Coverage Area (m2)	Empty Container Weight
Container Type	Length	Width	Height	Coverage Area (m2)	Empty Container Weight
Monoblock concrete container (kiosk) CK72	7200	2500	3550	18	24000
Metal container MK1	8200	2850	3470	23,37	6200
Metal container MK2	8200	2850	3470	23,37	6200

Monoblock concrete container (kiosk) SIS is a monoblock concrete construction, shared by partitions into compartments. Each compartment has its own door and ventilation grids.

Metal container SIS consists of two functionally complete modules - warm and cold, which are fully mounted assembly units.
Warm module SIS- inverter system room with artificial climate control (cooling, heating and ventilation).
Cold module SIS- Transformer room and medium voltage switchgear room
SIS has a metal framing, bearing structure made of metal profiled sheets with noncombustible mineral wool insulation.
Cooling system, heating and ventilation designed to keep the microclimate in the inverters room of solar inverter substation, ventilation of the transformer room. In the high cell room uses natural ventilation.

CONTAINER SIS MODULARITY

Container SIS Modularity

SIS EQUIPMENT COMPONENTRY

SIS Equipment Componentry

ELECTRICAL PARAMETERS OF SIS

#	Parameter	Value
1	Manufacturer of inverter	ABB	ABB
DC Side (incoming side)
2	Input voltage DC, V	450…750	450…825
3	Maximum input voltage DC, V	900V (option 1000V)	900V (option 1000V)
4	Maximum current(Imax (DC)), А	1145 х 2	1145 х 2
5	Number of protected inputs (parallel), pcs	4 (+/-) х 2	4 (+/-) х 2
6	Overvoltage protection	Class 2	Class 2
7	Connection	Cable, ring cable lug	Cable, ring cable lug
8	Maximum cross section of connection cable, mm²	185	185
9	Size of bolt	M12	M12
10	Tightening torque, Nm	70	70
11	Number of cable glands, pcs	28	28
12	Maximum diameter of cable, mm	22	22
AC Side (outgoing side)
13	Output voltage AC, kV	10	35
14	Voltage frequency, Hz	50	50
15	Nominal power, kVA	1000	1000
16	Current distortion, %	<3	<3
17	Concept of grounding	TN / IT	TN / IT
18	Overvoltage protection	Class 1/2	Class 1/2
19	Connection	Cable, ring cable lug	Cable, ring cable lug
20	Connection type	Through-pass	Through-pass
21	Maximum cross section of connection cable, mm²	300	300
22	Size of bolt	М12/М16	М12/М16
23	Tightening torque, Nm	70	70
24	Number of cable glands, pcs	6	6
25	Maximum diameter of cable, mm	47	47
Supply of own needs
26	Input voltage AC, V	380	380
27	Voltage frequency, Hz	50	50
28	Rated power consumption, kW	11,5	16,8
29	Concept of grounding	TN-S	TN-S
30	Overvoltage protection	Class 2	Class 2
31	Connection	Cable, tubular cable lug	Cable, tubular cable lug
32	Maximum cross section of connection cable, mm²	16	95
33	Number of cable glands, pcs	2	3
34	Maximum diameter of cable, mm	22	33
SGCB Network
35	Network type	Current loop	Current loop
36	Overvoltage protection	Class 2	Class 2
37	Connection	Cable, tubular cable lug	Cable, tubular cable lug
38	Connection type	Star	Star
39	Maximum cross section of connection cable, mm²	1	1
40	Number of cable glands, pcs	32	32
41	Maximum diameter of cable, mm	12	12
Ethernet Network
42	Network type	Ethernet	Ethernet
43	Connection	Cable	Cable
44	Connection type	Star, Bus	Star, Bus
45	Cable type	Optics	Optics
46	Number of cable glands, pcs	2	2
47	Maximum diameter of cable, mm	12	12