Vertiv
™
NetSure
™
802 and Vertiv
™
NetSure
™
8200 -48 VDC Power System
System Application Guide
Spec. No: 582140000
SAG582140000
Model Nos: 802
NLDB
, 802
NLEB
, 802
NL
-
B
,
Proprietary and Confidential © 2022 Vertiv Group Corp.
Revision BH, September 28, 2022
8200
NLDB
, 8200
NLEB
and 8200
NL
-
B
Page 114
3.
RECTIFIER
3.1
Output Ratings
3.1.1
Voltage: Nominal -48 volts DC, Positive Ground.
(A)
Without Battery Charge Temperature Compensation: Float voltage is adjustable from 47.00 to 58.00 volts DC.
Test/equalize voltage is adjustable from 45.00 to 58.00 volts DC. Both float and test/equalize voltages are
factory set at 52.00 volts, unless otherwise specified. The output voltage temperature coefficient does not
exceed 0.01% per degree centigrade from 0 °C to +40 °C.
(B)
With Battery Charge Digital Temperature Compensation Probe: With an optional battery charge digital
temperature compensation probe installed, the controller automatically increases or decreases the output
voltage as battery ambient temperature decreases or increases, respectively. Float voltage is factory set at
approximately 54.48 volts at 25
°
C battery ambient. The float and test/equalize voltage range is the same as
without battery charge temperature compensation. Using battery and equipment manufacturers’
recommendations, the user selects the following temperature compensation curve parameters via the
controller. Refer to "Typical Float Charge Thermal Characteristics Using Optional Battery Charge Digital
Temperature Compensation Probe" in
Battery Charge Temperature Compensation Probe for Digital
Compensation
under
ACCESSORY DESCRIPTIONS
.
(1)
The temperature compensation slope in volts/
°
C. Adjustable from zero to 200 millivolts/
°
C. Factory set
at 0V/
°
C (DIGITAL TC OFF).
(2)
The maximum voltage limit in volts DC. Adjustable from float up to 58.5 volts DC, but automatically
limited to one volt below the High Voltage Shutdown setting. Factory set at 56.5 volts DC.
(3)
The minimum voltage limit in volts DC. Adjustable from float down to 44 volts DC. Factory set at 50.0
volts DC.
3.1.2
Current: Two hundred (200) amperes per rectifier, up to a total of 2,000 amperes per Power/Distribution Bay with
ten (10) rectifiers installed, and up to a total of 16,000 amperes per system when equipped with 80 rectifiers.
3.1.3
Regulation
(A)
Static: The controller controls the steady state output voltage to within ±0.05% of any voltage setting within
the range of 44.0 to 58.0 volts DC for any and all combinations of load from no load to full load, input voltage,
and input frequency at a constant ambient temperature. If the controller's regulation feature is disabled for
any reason, steady state regulation is ±1.0% as controlled within the rectifiers.
(B)
Dynamic Response: For any step load change from 10% to 90% or from 90% to 10% of full rated load within 250
microseconds, shall not cause the voltage measured at the output to overshoot or undershoot more than 5% of
the regulated output level within 1 millisecond. The output voltage must return and stay within the ±1%
regulation band within 4 milliseconds and within the ±0.5% regulation band within 3 seconds. Any step change
of the line voltage within the limits specified in Paragraph 3.2.1 shall not cause the output voltage to deviate
outside the ±0.5% regulation band.
3.1.4
Filtering (with or without battery): Typical readings were taken at nominal input voltage, nominal output voltage,
50% load, and 25°C (77°F) ambient.
(A)
Voice Band Noise: Complies with Telcordia GR-947-CORE.
(1)
Typically 21 dBrn with C-message weighting. Does not exceed 38 dBrn C.
(2)
Typically 0.100 millivolt psophometric. Does not exceed 2 millivolt psophometric.
(B)
Wide Band Noise: Complies with Telcordia GR-947-CORE.
(1)
Typically 200 millivolt peak-to-peak. Does not exceed 250 millivolt peak-to-peak.
(2)
Typically 10 millivolts rms. Does not exceed 100 millivolt rms.
3.2
Input Ratings (480VAC, with 486532603 rectifier)
3.2.1
Voltage: Nominal 480 volts AC, three phase, 60 Hz, with an operating range of 340 to 528 volts. Acceptable input
frequency range is 57 to 63 Hz.
3.2.2
Harmonic Content: Complies with IEEE-519-1992. Voltage harmonic distortion of less than 5% at nominal input
when operating on a line impedance of 0.104 ohms or less.
3.2.3
Inrush Current: Peak does not exceed 6 times the RMS input current at full load, under any conditions of input
voltage within the rated input voltage range stated in Paragraph 3.3.1 and for any duration of AC input interrupts.
Under the above conditions, standard AC distribution circuit breakers will not trip.