SMA PPM-10 Installation Manual page 42

6 Electrical Connection
Measur- Current
ing mod- Mea-
ule sure-
ment
K105 5
6
5 and 6
Requirements:
☐ The connected local utility grid must be a 4-conductor or a 3-conductor utility grid according to its grid type. If
another grid type is used, the connection of the current transformers must be coordinated with
SMA Solar Technology AG.
☐ Only 1 grid type must be connected per measuring module.
☐ The cables must be protected in accordance with the locally applicable standards and directives.
☐ The current transformers used must have at least accuracy class 1.
☐ The nominal output power of the current transformer must be at least 2.5 VA.
☐ The outputs of the current transformers are already grounded within the product. Therefore, the outputs of the
current transformers must not be grounded in any way outside of the product.
☐ It must be possible to short-circuit the current transformer outputs by an external short circuit device outside of the
product.
☐ Summation current transformers must have identical transformation ratios and be of the same type.
☐ When using summation current transformers, the entire current transformer system must have the resulting
accuracy class 1 or lower.
☐ The requirements for the measurement inputs of the product must be complied with (see Section 10, page 63).
☐ When the power analyzer is used with measuring modules, the current transformers used must have a secondary
rated current of 1 A (variants: Hybrid Controller L / Hybrid Controller XL 1xGMP / Hybrid Controller XL 2xGMP).
42 PPM-10-IA-en-16
Variant
Hybrid Controller L
Hybrid Controller L
Hybrid Controller L
Current transformer
L1
L2
L3
L1
L2
L3
N and internal neutral
point of the current trans-
formers
Do not connect the termi-
nal. Internal use
SMA Solar Technology AG
Terminal cur- Terminal
rent trans- product
former
k1 X700:29
l1 X700:30
k2 X700:31
l2 X700:32
k3 X700:33
l3 X700:34
k4 X700:35
l4 X700:36
k5 X700:37
l5 X700:38
k6 X700:39
l6 X700:40
lx X700:41
X700:42
Installation Manual