Ningbo Tianan (Group) Co.,Ltd. |
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Compact Substation 11kv Compact Substation Power Transformer Box
Electricity Substation
ZGS-Z.G-2750/13.8 series combined transformer for photovoltaic is a
special power equipment integrating transformer, high voltage
cabinet, low voltage switch and corresponding auxiliary equipment.
It raises the voltage of 0.48kV from the PV module and inverter
conversion output to 13.8kV system voltage, and then outputs the
electric energy upward through the 13.8kV high-voltage cable line.
It is an ideal supporting equipment for photovoltaic power
generation systems.
Technical feature:
1. Faster recovery of power
>> The prefabricated mobile substation is applied to fully or partial
replace the conventional substation and resume the power supply in case of emergency.
2. Reliable solution
>> The prefabricated mobile substation is the flexible and reliable
way for transportation with the complete equipment. It also saves investment in various aspects, concerning
the land requisition, civil construction, equipment installation etc, which improves the
reliability of power supply for the
system.
3. Power cutting
>> Breaking the circuit breaker at the low voltage side.
>> Breaking the circuit breaker at the high voltage side.
>> Note: HV cable room connects to transformer. After the high-voltage
circuit breaker is disconnected, the isolating switch is opened and
the grounding switch is closed before entering.
4. Maintenance
>> The prefabricated mobile substation is the flexible and reliable
way for transportation with the complete equipment. It also saves investment in various aspects, concerning
the land requisition, civil construction, equipment installation etc, which improves the
reliability of power supply for the
system.
5. Order notes
a,Provide related parameters about product when ordering
b,Product type
c,Transformer capacity
d,Wiring schemes at high and low voltage side and types and
parameters of electrical components
e,Enclosure color
f, If there is other special requirement, it can be resolved
through negotiation.
Our Advantage:
1. Various special requirement from customer or typical
specification .
2. Competitive price (Real Factory).
3. Excellent quality control and faster feedback .
4. Good service and after sales.
5. In time delivery.
6. Manufacturing after drawings approved.
7. OEM is acceptable.We can change the design as client's
requirements.
Item | Unit | Data | |||
HV Unit | Switch type | Combined electrical apparatus | Circuit breaker | ||
Rated voltage | kV | 40.5 | 40.5 | ||
Rated frequency | Hz | 50 | 50 | ||
Rated current | A | 630 | 1250 | ||
1 min Rated power frequency withstand voltage(for ground and phase / isolation fracture) | kV | 95/118 | 95/118 | ||
Lighting withstand voltage(for ground and phase / isolation fracture) | kV | 185/215 | 185/215 | ||
Rated short time withstand current | kA/s | 20/2 | 25/4 | ||
Rated peak withstand current | kA | 50 | 63 | ||
Rated short-circuit current | kA | 31.5 | 63 | ||
Rated short circuit breaking current | kA | 31.5 | 25 | ||
LV Unit | Rated voltage | V | 690/270 | ||
Main circuit rated current | A | 1600~3300 | |||
Rated ultimate short circuit breaking capacity | kA | 50 | |||
Rated short-circuit breaking capacity | kA | 40 | |||
Rated short-time withstand voltage | kA/s | 40/1 | |||
Transformer Unit | Rated capacity | kVA | 1000~5500 | ||
Impedance voltage | % | 6.5 | |||
Tapping range | % | ±2 x 2.5 ; ± 5 | |||
Connected group | D, yn11 or Y , d11 d 11 | ||||
Main body | Enclosure degree of protection | HV room | IP33 | ||
LV room | IP33 | ||||
Transformer room | IP23 | ||||
Sound level | dB | ≤55 |